/*!
 * Theme newnet-v2 — design system
 * Base layer: bootstrap.min.css (grid/utilities used by module views: shop, learning…).
 * Everything prefixed with `nn-` belongs to this theme.
 */

/* ==========================================================================
   1. Tokens → xem css/tokens.css (nạp trước file này)
   ========================================================================== */

/* ==========================================================================
   2. Base
   ========================================================================== */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
    margin: 0;
    font-family: var(--nn-font);
    font-size: 16px;
    line-height: var(--nn-leading-normal);
    color: var(--nn-text);
    background: var(--nn-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
body.nn-lock { overflow: hidden; }

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--nn-font);
    color: var(--nn-ink);
    font-weight: var(--nn-weight-bold);
    line-height: 1.25;
    letter-spacing: var(--nn-tracking-tight);
    margin: 0 0 .5em;
}
h1, .h1 { font-size: var(--nn-h1); letter-spacing: var(--nn-tracking-tighter); }
h2, .h2 { font-size: var(--nn-h2); letter-spacing: -.02em; }
h3, .h3 { font-size: var(--nn-h3); }
h4, .h4 { font-size: var(--nn-text-2xl); }
h5, .h5 { font-size: var(--nn-text-lg); }
h6, .h6 { font-size: var(--nn-text-md); }
p { margin: 0 0 1em; }
.lead { font-size: var(--nn-text-xl); font-weight: var(--nn-weight-regular); color: var(--nn-muted); }

a { color: var(--nn-primary); text-decoration: none; transition: color .15s var(--nn-ease); }
a:hover { color: var(--nn-primary-hover); text-decoration: none; }
img, svg, video { max-width: 100%; }
img { height: auto; }
hr { border: 0; border-top: 1px solid var(--nn-border); }
::selection { background: color-mix(in srgb, var(--nn-brand-400) 22%, transparent); }

:focus-visible { outline: 2px solid var(--nn-primary); outline-offset: 2px; }
button:focus:not(:focus-visible), a:focus:not(:focus-visible) { outline: none; }

iconify-icon { display: inline-block; width: 1em; height: 1em; }
.nn-icon { font-size: 1.25em; flex: none; display: inline-flex; vertical-align: -.22em; }
.nn-icon svg { display: block; }
.nn-sr-only, .nn-visually-hidden {
    position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.nn-skip-link {
    position: absolute; left: 16px; top: -60px; z-index: var(--nn-z-skip);
    background: var(--nn-ink); color: #fff; padding: var(--nn-space-2-5) var(--nn-space-4); border-radius: var(--nn-radius-sm);
}
.nn-skip-link:focus { top: 12px; color: #fff; }

.nn-clamp-2, .nn-clamp-3 { display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }
.nn-clamp-2 { -webkit-line-clamp: 2; }
.nn-clamp-3 { -webkit-line-clamp: 3; }

/* ==========================================================================
   3. Layout
   ========================================================================== */
.nn-container {
    width: 100%;
    max-width: calc(var(--nn-container) + var(--nn-gutter) * 2);
    margin-inline: auto;
    padding-inline: var(--nn-gutter);
}
.nn-container--narrow { max-width: calc(820px + var(--nn-gutter) * 2); }

.nn-section { padding-block: var(--nn-section-y); position: relative; }
.nn-section--tight { padding-block: var(--nn-section-y-tight); }
.nn-section--muted { background: var(--nn-surface); }
.nn-section--dark { background: var(--nn-deep); color: rgba(255, 255, 255, .78); }
.nn-section--dark h1, .nn-section--dark h2, .nn-section--dark h3,
.nn-section--dark h4, .nn-section--dark h5 { color: #fff; }
.nn-section + .nn-section--muted, .nn-section--muted + .nn-section:not(.nn-section--muted) { border-top: 0; }

.nn-grid { display: grid; gap: var(--nn-space-6); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) {
    .nn-grid--2, .nn-grid--3, .nn-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 992px) {
    .nn-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .nn-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.nn-split { display: grid; gap: var(--nn-space-10); align-items: center; }
.nn-split > *, .nn-grid > *, .nn-article-layout > *, .nn-account > * { min-width: 0; }
@media (min-width: 992px) {
    .nn-split { grid-template-columns: 1fr 1fr; gap: var(--nn-space-16); }
    .nn-split--5-7 { grid-template-columns: 5fr 7fr; }
    .nn-split--7-5 { grid-template-columns: 7fr 5fr; }
    .nn-split--top { align-items: start; }
}

.nn-heading { max-width: 720px; margin-bottom: var(--nn-space-12); }
.nn-heading--center { margin-inline: auto; text-align: center; }
.nn-heading__title { margin-bottom: var(--nn-space-3-5); }
.nn-heading__lead { font-size: var(--nn-text-lg); color: var(--nn-muted); margin: 0; }
.nn-heading--light .nn-heading__title { color: #fff; }
.nn-heading--light .nn-heading__lead { color: rgba(255, 255, 255, .75); }
.nn-eyebrow {
    display: inline-flex; align-items: center; gap: var(--nn-space-2);
    font-size: var(--nn-text-xs); font-weight: var(--nn-weight-semibold); letter-spacing: var(--nn-tracking-wide); text-transform: uppercase;
    color: var(--nn-primary); margin-bottom: var(--nn-space-3-5);
}
.nn-eyebrow::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--nn-gradient); }
.nn-heading--light .nn-eyebrow { color: var(--nn-cyan); }

.nn-text-gradient {
    background: var(--nn-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}

/* ==========================================================================
   4. Buttons, badges
   ========================================================================== */
.nn-btn {
    --_bg: var(--nn-primary); --_fg: #fff; --_bd: transparent;
    display: inline-flex; align-items: center; justify-content: center; gap: var(--nn-space-2);
    min-height: 46px; padding: var(--nn-space-2-5) var(--nn-space-5-5);
    font: 600 .9375rem/1.2 var(--nn-font);
    color: var(--_fg); background: var(--_bg);
    border: 1.5px solid var(--_bd); border-radius: var(--nn-radius-pill);
    cursor: pointer; white-space: nowrap; text-decoration: none; user-select: none;
    transition: background-color .18s var(--nn-ease), color .18s var(--nn-ease), border-color .18s var(--nn-ease), box-shadow .18s var(--nn-ease), transform .18s var(--nn-ease);
}
.nn-btn:hover { color: var(--_fg); text-decoration: none; transform: translateY(-1px); }
.nn-btn:active { transform: translateY(0); }
.nn-btn:focus-visible { outline: none; box-shadow: var(--nn-ring); }
.nn-btn[disabled], .nn-btn.is-disabled { opacity: .55; pointer-events: none; }
.nn-btn .nn-icon { font-size: var(--nn-icon-md); }

.nn-btn--primary { --_bg: var(--nn-primary); box-shadow: 0 6px 16px -6px color-mix(in srgb, var(--nn-brand) 55%, transparent); }
.nn-btn--primary:hover { --_bg: var(--nn-primary-hover); }
.nn-btn--gradient { --_bg: var(--nn-gradient); background: var(--nn-gradient); box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--nn-brand) 65%, transparent); }
.nn-btn--gradient:hover { filter: brightness(1.06); }
.nn-btn--outline { --_bg: transparent; --_fg: var(--nn-primary); --_bd: currentColor; }
.nn-btn--outline:hover { --_bg: var(--nn-primary-soft); --_fg: var(--nn-primary-hover); }
.nn-btn--ghost { --_bg: var(--nn-primary-soft); --_fg: var(--nn-primary); }
.nn-btn--ghost:hover { --_bg: var(--nn-brand-200); --_fg: var(--nn-primary-hover); }
.nn-btn--light { --_bg: #fff; --_fg: var(--nn-brand-700); }
.nn-btn--light:hover { --_bg: var(--nn-brand-50); --_fg: var(--nn-brand-900); }
.nn-btn--outline-light { --_bg: transparent; --_fg: #fff; --_bd: rgba(255, 255, 255, .55); }
.nn-btn--outline-light:hover { --_bg: rgba(255, 255, 255, .12); --_bd: #fff; }
.nn-btn--danger-text { --_bg: transparent; --_fg: var(--nn-danger); min-height: auto; padding: var(--nn-space-1-5) var(--nn-space-2-5); }
.nn-btn--sm { min-height: 38px; padding: 7px var(--nn-space-4); font-size: var(--nn-text-sm); }
.nn-btn--lg { min-height: 54px; padding: var(--nn-space-3-5) var(--nn-space-7); font-size: var(--nn-text-base); }
.nn-btn--block { display: flex; width: 100%; }
.nn-btn-row { display: flex; flex-wrap: wrap; gap: var(--nn-space-3); align-items: center; }

/* Ánh sáng khi hover: (1) vùng sáng theo con trỏ, (2) vệt sáng quét ngang, (3) quầng sáng quanh nút.
   Màu theo biến thể qua --_light / --_shine / --_glow; vị trí con trỏ --mx/--my do theme.js cập nhật. */
.nn-btn {
    --_light: rgba(255, 255, 255, .24);
    --_shine: rgba(255, 255, 255, .42);
    --_glow: color-mix(in srgb, var(--nn-brand) 60%, transparent);
    position: relative; overflow: hidden; isolation: isolate;
}
.nn-btn--gradient { --_glow: color-mix(in srgb, var(--nn-glow) 65%, transparent); }
.nn-btn--outline, .nn-btn--ghost { --_light: color-mix(in srgb, var(--nn-brand) 20%, transparent); --_shine: color-mix(in srgb, var(--nn-brand) 18%, transparent); --_glow: color-mix(in srgb, var(--nn-brand) 38%, transparent); }
.nn-btn--light { --_light: color-mix(in srgb, var(--nn-brand) 16%, transparent); --_shine: color-mix(in srgb, var(--nn-glow) 30%, transparent); --_glow: rgba(255, 255, 255, .45); }
.nn-btn--outline-light { --_light: rgba(255, 255, 255, .22); --_shine: rgba(255, 255, 255, .35); --_glow: rgba(255, 255, 255, .35); }
.nn-btn--danger { --_glow: color-mix(in srgb, var(--nn-danger) 55%, transparent); }
.nn-btn--danger-text { --_light: color-mix(in srgb, var(--nn-danger) 14%, transparent); --_shine: transparent; --_glow: transparent; }

.nn-btn::before {
    content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none;
    background: radial-gradient(120px circle at var(--mx, 50%) var(--my, 50%), var(--_light), transparent 70%);
    opacity: 0; transition: opacity var(--nn-duration) var(--nn-ease);
}
.nn-btn:hover::before { opacity: 1; }
.nn-btn:not(.is-loading):not(.lp-btn-glow)::after {
    content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 45%; z-index: -1; pointer-events: none;
    background: linear-gradient(100deg, transparent, var(--_shine), transparent);
    transform: skewX(-18deg); opacity: 0;
}
.nn-btn:not(.is-loading):not(.lp-btn-glow):hover::after { animation: nn-btn-shine .8s var(--nn-ease-out); }
.nn-btn:hover { box-shadow: 0 0 0 1px color-mix(in srgb, var(--_glow) 45%, transparent), 0 12px 30px -10px var(--_glow), 0 0 22px -6px var(--_glow); }
.nn-btn:focus-visible:hover { box-shadow: var(--nn-ring), 0 12px 30px -10px var(--_glow); }
@keyframes nn-btn-shine { 0% { left: -60%; opacity: 0; } 20% { opacity: 1; } 100% { left: 125%; opacity: 0; } }

.nn-link-arrow { display: inline-flex; align-items: center; gap: var(--nn-space-1-5); font-weight: var(--nn-weight-semibold); font-size: var(--nn-text-md); }
.nn-link-arrow .nn-icon { font-size: var(--nn-icon-sm); transition: transform .2s var(--nn-ease); }
.nn-link-arrow:hover .nn-icon, a:hover .nn-link-arrow .nn-icon { transform: translateX(3px); }

.nn-badge {
    display: inline-flex; align-items: center; gap: var(--nn-space-1-5);
    padding: var(--nn-space-1) var(--nn-space-2-5); border-radius: var(--nn-radius-pill);
    font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-semibold); line-height: 1.4;
    background: var(--nn-primary-soft); color: var(--nn-primary);
}
.nn-badge--cyan { background: var(--nn-cyan-soft); color: var(--nn-brand-600); }
.nn-badge--success { background: var(--nn-success-soft); color: var(--nn-success); }
.nn-badge--danger { background: var(--nn-danger-soft); color: var(--nn-danger); }
.nn-badge--glass { background: rgba(255, 255, 255, .14); color: #fff; backdrop-filter: blur(6px); border: 1px solid rgba(255, 255, 255, .22); }
.nn-badge--solid { background: var(--nn-gradient); color: #fff; }

/* ==========================================================================
   5. Header & navigation
   ========================================================================== */
.nn-topbar { background: var(--nn-deep); color: rgba(255, 255, 255, .78); font-size: var(--nn-text-xs); }
.nn-topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-4); min-height: 38px; }
.nn-topbar__list { display: flex; flex-wrap: wrap; gap: var(--nn-space-1-5) var(--nn-space-5-5); margin: 0; padding: 0; list-style: none; }
.nn-topbar a { color: rgba(255, 255, 255, .86); display: inline-flex; align-items: center; gap: var(--nn-space-1-5); }
.nn-topbar a:hover { color: #fff; }
.nn-topbar .nn-icon { font-size: var(--nn-icon-xs); color: var(--nn-cyan); }
@media (max-width: 767.98px) { .nn-topbar__note { display: none; } }

.nn-header {
    position: sticky; top: 0; z-index: var(--nn-z-header);
    background: #fff;
    border-bottom: 1px solid transparent;
    transition: border-color .2s var(--nn-ease), box-shadow .2s var(--nn-ease);
}
.nn-header.is-scrolled { border-bottom-color: var(--nn-border); box-shadow: 0 6px 24px -18px color-mix(in srgb, var(--nn-ink) 45%, transparent); }
.nn-header__inner { display: flex; align-items: center; gap: var(--nn-space-6); height: var(--nn-header-h); }

.nn-logo { display: inline-flex; align-items: center; gap: var(--nn-space-2-5); color: var(--nn-ink); flex: none; }
.nn-logo:hover { color: var(--nn-ink); }
.nn-logo img { height: 34px; width: auto; }
.nn-logo__text { font-weight: var(--nn-weight-extrabold); font-size: var(--nn-text-2xl); letter-spacing: var(--nn-tracking-wider); line-height: var(--nn-leading-none); }
.nn-logo--light { color: #fff; }
.nn-logo--light:hover { color: #fff; }

/* Mục menu cao bằng header → dropdown thường và mega menu cùng mốc top (mép dưới header + --nn-nav-gap; âm = chồng lên header) */
.nn-nav { --nn-nav-gap: -10px; margin-left: auto; align-self: stretch; }
.nn-nav__list { display: flex; align-items: stretch; height: 100%; gap: var(--nn-space-0-5); list-style: none; margin: 0; padding: 0; }
.nn-nav__item { position: relative; display: flex; align-items: center; }
.nn-nav__link {
    display: inline-flex; align-items: center; gap: var(--nn-space-1);
    padding: var(--nn-space-2-5) var(--nn-space-3); border-radius: var(--nn-radius-pill);
    font-size: var(--nn-text-md); font-weight: var(--nn-weight-bold); color: var(--nn-ink);
    background: none; border: 0; cursor: pointer; font-family: inherit; white-space: nowrap;
}
@media (max-width: 1279.98px) { .nn-nav__link { padding-inline: var(--nn-space-2); } }
.nn-nav__link:hover, .nn-nav__item:focus-within > .nn-nav__link { color: var(--nn-primary); background: var(--nn-surface); }
.nn-nav__item.is-active > .nn-nav__link { color: var(--nn-primary); }
.nn-nav__link .nn-icon { font-size: var(--nn-icon-sm); transition: transform .2s var(--nn-ease); }

.nn-dropdown {
    position: absolute; top: calc(100% + var(--nn-nav-gap, 2px)); left: 0; z-index: 1; min-width: 240px;
    padding: var(--nn-space-2); margin: 0; list-style: none;
    background: #fff; border: 1px solid var(--nn-border); border-radius: var(--nn-radius);
    box-shadow: var(--nn-shadow-lg);
    opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: opacity .18s var(--nn-ease), transform .18s var(--nn-ease), visibility .18s;
}
.nn-dropdown::before { content: ""; position: absolute; inset: -10px 0 auto; height: 10px; }
.nn-dropdown .nn-dropdown { top: -9px; left: calc(100% + 8px); }
.nn-dropdown__link {
    display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-2);
    padding: 9px var(--nn-space-3); border-radius: var(--nn-radius-sm);
    font-size: var(--nn-text-md); color: var(--nn-text);
}
.nn-dropdown__link:hover { background: var(--nn-surface); color: var(--nn-primary); }
.nn-dropdown__link .nn-icon { font-size: var(--nn-icon-sm); transform: rotate(-90deg); color: var(--nn-subtle); }
.nn-dropdown__item { position: relative; }

@media (min-width: 1100px) {
    .nn-nav__item:hover > .nn-dropdown,
    .nn-nav__item:focus-within > .nn-dropdown,
    .nn-dropdown__item:hover > .nn-dropdown,
    .nn-dropdown__item:focus-within > .nn-dropdown { opacity: 1; visibility: visible; transform: none; }
    .nn-nav__item:hover > .nn-nav__link .nn-icon { transform: rotate(180deg); }
}

.nn-header__actions { display: flex; align-items: center; gap: var(--nn-space-2); flex: none; }
.nn-icon-btn {
    position: relative; display: inline-grid; place-items: center;
    width: 44px; height: 44px; border-radius: var(--nn-radius-round);
    color: var(--nn-ink); background: transparent; border: 0; cursor: pointer;
    transition: background-color .15s var(--nn-ease), color .15s var(--nn-ease);
}
.nn-icon-btn:hover { background: var(--nn-surface); color: var(--nn-primary); }
.nn-icon-btn .nn-icon { font-size: 22px; }
.nn-cart-count {
    position: absolute; top: 4px; right: 2px; min-width: 18px; height: 18px; padding: 0 5px;
    display: grid; place-items: center; border-radius: var(--nn-radius-sm);
    font-size: var(--nn-text-3xs); font-weight: var(--nn-weight-bold); line-height: var(--nn-leading-none); color: #fff;
    background: var(--nn-gradient); box-shadow: 0 0 0 2px #fff;
}
.nn-burger { display: none; }

/* Desktop: nhường chỗ cho menu trên 1 hàng — nút tài khoản chỉ còn icon (có aria-label) */
@media (min-width: 1100px) {
    .nn-header__inner { gap: var(--nn-space-4); }
    .nn-header__account { width: 44px; height: 44px; padding: 0; justify-content: center; }
    .nn-header__account-text { display: none; }
}
@media (max-width: 1099.98px) {
    .nn-nav { display: none; }
    .nn-burger { display: inline-grid; }
    .nn-header__actions { margin-left: auto; }
}
@media (max-width: 575.98px) {
    .nn-header__account { display: none; }
    .nn-logo img { height: 30px; }
    .nn-logo__text { font-size: var(--nn-text-xl); }
}

/* Off-canvas panels (mobile nav, cart) */
.nn-overlay {
    position: fixed; inset: 0; z-index: var(--nn-z-overlay);
    background: color-mix(in srgb, var(--nn-ink) 50%, transparent); backdrop-filter: blur(2px);
    opacity: 0; visibility: hidden; transition: opacity .25s var(--nn-ease), visibility .25s;
}
.nn-overlay.is-open { opacity: 1; visibility: visible; }
.nn-panel {
    position: fixed; top: 0; bottom: 0; z-index: var(--nn-z-panel);
    width: min(400px, 92vw); display: flex; flex-direction: column;
    background: #fff; box-shadow: var(--nn-shadow-lg);
    transition: transform .3s var(--nn-ease), visibility .3s;
    visibility: hidden;
}
.nn-panel--right { right: 0; transform: translateX(100%); }
.nn-panel--left { left: 0; transform: translateX(-100%); }
.nn-panel.is-open { transform: none; visibility: visible; }
.nn-panel__head {
    display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-3);
    padding: var(--nn-space-4) var(--nn-space-4) var(--nn-space-4) var(--nn-space-6); border-bottom: 1px solid var(--nn-border);
}
.nn-panel__title { font-size: var(--nn-text-xl); margin: 0; }
.nn-panel__body { flex: 1; overflow-y: auto; padding: var(--nn-space-4) var(--nn-space-6); overscroll-behavior: contain; }
.nn-panel__foot { padding: var(--nn-space-5) var(--nn-space-6) var(--nn-space-6); border-top: 1px solid var(--nn-border); background: var(--nn-surface); }

.nn-mnav { list-style: none; margin: 0; padding: 0; }
.nn-mnav ul { list-style: none; margin: 0; padding: 0 0 var(--nn-space-2) var(--nn-space-3-5); border-left: 2px solid var(--nn-border); margin-left: var(--nn-space-1); }
.nn-mnav__row { display: flex; align-items: center; }
.nn-mnav__link { flex: 1; display: block; padding: var(--nn-space-3) 0; font-weight: var(--nn-weight-semibold); color: var(--nn-ink); }
.nn-mnav ul .nn-mnav__link { padding: 9px 0; font-weight: var(--nn-weight-regular); color: var(--nn-text); }
.nn-mnav__toggle {
    width: 40px; height: 40px; display: grid; place-items: center;
    background: none; border: 0; border-radius: var(--nn-radius-round); color: var(--nn-muted); cursor: pointer;
}
.nn-mnav__toggle .nn-icon { transition: transform .2s var(--nn-ease); }
.nn-mnav__toggle[aria-expanded="true"] .nn-icon { transform: rotate(180deg); }
.nn-mnav > li { border-bottom: 1px solid var(--nn-border); }

.nn-cart-list { list-style: none; margin: 0; padding: 0; }
.nn-cart-item { display: grid; grid-template-columns: 64px 1fr auto; gap: var(--nn-space-3-5); align-items: center; padding: var(--nn-space-3-5) 0; border-bottom: 1px solid var(--nn-border); }
.nn-cart-item:last-child { border-bottom: 0; }
.nn-cart-item__thumb { width: 64px; height: 64px; border-radius: var(--nn-radius-sm); overflow: hidden; background: var(--nn-surface); }
.nn-cart-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.nn-cart-item__name { font-weight: var(--nn-weight-semibold); font-size: var(--nn-text-md); color: var(--nn-ink); line-height: var(--nn-leading-snug); }
.nn-cart-item__meta { font-size: var(--nn-text-sm); color: var(--nn-muted); margin-top: var(--nn-space-0-5); }
.nn-cart-item__remove { color: var(--nn-subtle); padding: var(--nn-space-1-5); border-radius: var(--nn-radius-round); display: inline-grid; }
.nn-cart-item__remove:hover { color: var(--nn-danger); background: var(--nn-danger-soft); }
.nn-cart-item__remove .nn-icon { font-size: var(--nn-icon-md); }
.nn-cart-total { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--nn-space-4); font-weight: var(--nn-weight-semibold); color: var(--nn-ink); }
.nn-cart-total strong { font-size: var(--nn-text-2xl); }
.nn-cart-empty { text-align: center; padding: var(--nn-space-12) 0; color: var(--nn-muted); }
.nn-cart-empty .nn-icon { font-size: 48px; color: var(--nn-border-strong); margin-bottom: var(--nn-space-3); }

/* ==========================================================================
   6. Hero & slider
   ========================================================================== */
.nn-hero {
    position: relative; overflow: hidden; isolation: isolate;
    background: var(--nn-deep); color: rgba(255, 255, 255, .8);
    padding-block: clamp(var(--nn-space-16), 5rem + 4vw, var(--nn-space-32));
}
.nn-hero::before {
    content: ""; position: absolute; inset: 0; z-index: -2;
    background:
        radial-gradient(60% 80% at 85% 10%, color-mix(in srgb, var(--nn-glow) 45%, transparent) 0%, transparent 60%),
        radial-gradient(50% 70% at 10% 100%, color-mix(in srgb, var(--nn-brand) 55%, transparent) 0%, transparent 65%),
        linear-gradient(160deg, var(--nn-deep) 0%, var(--nn-deep-700) 60%, var(--nn-brand-700) 100%);
}
.nn-hero::after {
    content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
    background-image:
        linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse at 60% 30%, #000 20%, transparent 75%);
    mask-image: radial-gradient(ellipse at 60% 30%, #000 20%, transparent 75%);
}
.nn-hero h1, .nn-hero h2 { color: #fff; }
.nn-hero .nn-text-gradient, .nn-section--dark .nn-text-gradient { background-image: linear-gradient(120deg, var(--nn-glow-soft) 0%, color-mix(in srgb, var(--nn-glow) 30%, #fff) 100%); }
.nn-hero__title { font-size: clamp(2.125rem, 1.4rem + 2.4vw, 3.25rem); line-height: var(--nn-leading-tight); margin-bottom: var(--nn-space-5); }
.nn-hero__lead { font-size: clamp(1.0625rem, 1rem + .3vw, 1.25rem); color: rgba(255, 255, 255, .78); max-width: 560px; margin-bottom: var(--nn-space-8); }
.nn-hero__points { display: flex; flex-wrap: wrap; gap: var(--nn-space-2-5) var(--nn-space-5-5); list-style: none; padding: 0; margin: var(--nn-space-8) 0 0; font-size: var(--nn-text-md); }
.nn-hero__points li { display: inline-flex; align-items: center; gap: var(--nn-space-2); color: rgba(255, 255, 255, .86); }
.nn-hero__points .nn-icon { color: var(--nn-cyan); font-size: var(--nn-icon-md); }

/* Decorative browser mockup */
.nn-mock { position: relative; width: 100%; max-width: 520px; margin-left: auto; }
.nn-mock__window {
    position: relative; z-index: 1;
    background: rgba(255, 255, 255, .96); border-radius: var(--nn-radius-lg); overflow: hidden;
    box-shadow: 0 40px 80px -24px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 255, 255, .25);
}
.nn-mock__bar { display: flex; align-items: center; gap: var(--nn-space-1-5); padding: var(--nn-space-3) var(--nn-space-3-5); background: var(--nn-surface-2); }
.nn-mock__bar i { width: 10px; height: 10px; border-radius: var(--nn-radius-round); background: var(--nn-border-strong); }
.nn-mock__bar i:nth-child(1) { background: var(--nn-danger); } .nn-mock__bar i:nth-child(2) { background: var(--nn-highlight); } .nn-mock__bar i:nth-child(3) { background: var(--nn-success); }
.nn-mock__url { margin-left: var(--nn-space-2-5); flex: 1; height: 22px; border-radius: var(--nn-radius-xs); background: #fff; font-size: 11px; color: var(--nn-muted); display: flex; align-items: center; padding-inline: var(--nn-space-2-5); }
.nn-mock__body { padding: var(--nn-space-5-5); display: grid; gap: var(--nn-space-3-5); }
.nn-mock__hero { height: 110px; border-radius: var(--nn-radius-md); background: var(--nn-gradient); position: relative; overflow: hidden; }
.nn-mock__hero::after { content: ""; position: absolute; left: 18px; top: 26px; width: 55%; height: 12px; border-radius: var(--nn-radius-xs); background: rgba(255, 255, 255, .85); box-shadow: 0 22px 0 -2px rgba(255, 255, 255, .5), 0 44px 0 -2px rgba(255, 255, 255, .35); }
.nn-mock__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--nn-space-3); }
.nn-mock__tile { height: 70px; border-radius: var(--nn-radius-md); background: var(--nn-surface-2); position: relative; }
.nn-mock__tile::before { content: ""; position: absolute; left: 10px; top: 10px; width: 22px; height: 22px; border-radius: var(--nn-radius-xs); background: var(--nn-primary-soft); }
.nn-mock__tile::after { content: ""; position: absolute; left: 10px; bottom: 12px; width: 60%; height: 7px; border-radius: var(--nn-radius-2xs); background: var(--nn-line); }
.nn-mock__lines span { display: block; height: 8px; border-radius: var(--nn-radius-2xs); background: var(--nn-line); margin-bottom: var(--nn-space-2); }
.nn-mock__lines span:nth-child(2) { width: 85%; } .nn-mock__lines span:nth-child(3) { width: 65%; }
.nn-mock__float {
    position: absolute; z-index: 2; display: flex; align-items: center; gap: var(--nn-space-2-5);
    padding: var(--nn-space-3) var(--nn-space-4); border-radius: var(--nn-radius); background: #fff; color: var(--nn-ink);
    font-size: var(--nn-text-xs); font-weight: var(--nn-weight-semibold); box-shadow: var(--nn-shadow-lg);
    animation: nn-float 6s ease-in-out infinite;
}
.nn-mock__float small { display: block; font-weight: var(--nn-weight-regular); color: var(--nn-muted); font-size: var(--nn-text-2xs); }
.nn-mock__float .nn-icon-tile { width: 36px; height: 36px; border-radius: var(--nn-radius-md); }
.nn-mock__float .nn-icon-tile .nn-icon { font-size: 18px; }
.nn-mock__float--a { left: -36px; bottom: 48px; }
.nn-mock__float--b { right: -22px; top: 70px; animation-delay: -3s; }
@keyframes nn-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (max-width: 991.98px) { .nn-mock { margin: var(--nn-space-6) auto 0; } .nn-mock__float--a { left: -8px; } .nn-mock__float--b { right: -8px; } }
@media (max-width: 575.98px) { .nn-mock { display: none; } }

.nn-slider { position: relative; }
.nn-slider__track { display: grid; }
.nn-slide {
    grid-area: 1 / 1; position: relative; isolation: isolate; overflow: hidden;
    min-height: clamp(440px, 60vh, 620px); display: flex; align-items: center;
    padding-block: var(--nn-space-20); color: rgba(255, 255, 255, .85);
    background-color: var(--nn-brand); background-size: cover; background-position: center;
    opacity: 0; visibility: hidden; transition: opacity .7s var(--nn-ease), visibility .7s;
}
.nn-slide.is-active { opacity: 1; visibility: visible; }
.nn-slide::before {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background: linear-gradient(90deg, color-mix(in srgb, var(--nn-deep) 92%, transparent) 0%, color-mix(in srgb, var(--nn-deep) 72%, transparent) 45%, color-mix(in srgb, var(--nn-deep) 15%, transparent) 100%);
}
.nn-slide__content { max-width: 640px; }
.nn-slide__content > * { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--nn-ease) .15s, transform .6s var(--nn-ease) .15s; }
.nn-slide.is-active .nn-slide__content > * { opacity: 1; transform: none; }
.nn-slide__title { color: #fff; font-size: clamp(2rem, 1.3rem + 2.8vw, 3.5rem); line-height: var(--nn-leading-tight); margin-bottom: var(--nn-space-4-5); }
.nn-slide__lead { font-size: var(--nn-text-xl); color: rgba(255, 255, 255, .82); margin-bottom: var(--nn-space-4-5); }
.nn-slide__extra { color: rgba(255, 255, 255, .8); margin-bottom: var(--nn-space-6-5); }
.nn-slide__extra a { color: #fff; text-decoration: underline; }
.nn-slider__controls { position: absolute; left: 0; right: 0; bottom: 28px; z-index: 3; }
.nn-slider__controls .nn-container { display: flex; align-items: center; gap: var(--nn-space-4); }
.nn-slider__dots { display: flex; gap: var(--nn-space-2); }
.nn-slider__dot { width: 28px; height: 4px; padding: 0; border: 0; border-radius: 2px; background: rgba(255, 255, 255, .35); cursor: pointer; transition: background .2s, width .2s; }
.nn-slider__dot[aria-current="true"] { width: 44px; background: #fff; }
.nn-slider__arrows { margin-left: auto; display: flex; gap: var(--nn-space-2); }
.nn-slider__arrow { width: 44px; height: 44px; border-radius: var(--nn-radius-round); display: grid; place-items: center; color: #fff; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .25); cursor: pointer; }
.nn-slider__arrow:hover { background: rgba(255, 255, 255, .24); }

/* Strip of key benefits under hero */
.nn-strip { background: #fff; border-bottom: 1px solid var(--nn-border); }
.nn-strip__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; list-style: none; padding: 0; margin: 0; }
.nn-strip__item { display: flex; align-items: center; gap: var(--nn-space-3-5); padding: var(--nn-space-5-5) var(--nn-space-3); font-weight: var(--nn-weight-semibold); color: var(--nn-ink); font-size: var(--nn-text-md); line-height: var(--nn-leading-snug); }
.nn-strip__item .nn-icon-tile { width: 42px; height: 42px; border-radius: var(--nn-radius-md); }
.nn-strip__item .nn-icon-tile .nn-icon { font-size: 20px; }
.nn-strip__item small { display: block; font-weight: var(--nn-weight-regular); color: var(--nn-muted); font-size: var(--nn-text-xs); }
@media (min-width: 992px) {
    .nn-strip__list { grid-template-columns: repeat(4, 1fr); }
    .nn-strip__item + .nn-strip__item { border-left: 1px solid var(--nn-border); padding-left: var(--nn-space-7); }
}

/* ==========================================================================
   7. Cards & content blocks
   ========================================================================== */
.nn-card {
    position: relative; display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl);
    padding: var(--nn-space-7); height: 100%;
    transition: transform .25s var(--nn-ease), box-shadow .25s var(--nn-ease), border-color .25s var(--nn-ease);
}
.nn-card--hover:hover { transform: translateY(-4px); box-shadow: var(--nn-shadow-lg); border-color: transparent; }
.nn-card__title { font-size: var(--nn-text-xl); margin: var(--nn-space-4-5) 0 var(--nn-space-2-5); }
.nn-card__text { color: var(--nn-muted); font-size: var(--nn-text-md); margin: 0; }
.nn-card__foot { margin-top: auto; padding-top: var(--nn-space-5); }
.nn-card--flat { border-color: transparent; background: var(--nn-surface); }
.nn-card--glass { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .12); color: rgba(255, 255, 255, .75); }
.nn-card--glass .nn-card__title { color: #fff; }

.nn-icon-tile {
    display: inline-grid; place-items: center; flex: none;
    width: 52px; height: 52px; border-radius: var(--nn-radius);
    color: var(--nn-primary); background: var(--nn-primary-soft);
}
.nn-icon-tile .nn-icon { font-size: 24px; }
.nn-icon-tile--gradient { color: #fff; background: var(--nn-gradient); box-shadow: 0 10px 20px -10px color-mix(in srgb, var(--nn-brand) 80%, transparent); }
.nn-icon-tile--cyan { color: var(--nn-brand-600); background: var(--nn-cyan-soft); }
.nn-icon-tile--glass { color: var(--nn-cyan); background: color-mix(in srgb, var(--nn-glow) 12%, transparent); }
.nn-icon-tile--white { color: #fff; background: rgba(255, 255, 255, .16); }
.nn-card--hover:hover .nn-icon-tile:not(.nn-icon-tile--gradient) { color: #fff; background: var(--nn-gradient); }
.nn-icon-tile { transition: background .25s var(--nn-ease), color .25s var(--nn-ease); }

.nn-checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--nn-space-2-5); }
.nn-checklist li { position: relative; padding-left: 30px; font-size: var(--nn-text-md); color: var(--nn-text); }
.nn-checklist li::before {
    content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: var(--nn-radius-round);
    background: var(--nn-primary-soft);
}
.nn-checklist li::after {
    content: ""; position: absolute; left: 4px; top: 7px; width: 12px; height: 12px;
    background: var(--nn-primary);
    -webkit-mask: url("https://api.iconify.design/lucide/check.svg") center / contain no-repeat;
    mask: url("https://api.iconify.design/lucide/check.svg") center / contain no-repeat;
}
.nn-section--dark .nn-checklist li, .nn-checklist--light li { color: rgba(255, 255, 255, .82); }
.nn-section--dark .nn-checklist li::before, .nn-checklist--light li::before { background-color: color-mix(in srgb, var(--nn-glow) 16%, transparent); }
.nn-section--dark .nn-checklist li::after, .nn-checklist--light li::after { background: var(--nn-cyan); }

/* Numbered reasons list (why website) */
.nn-reasons { display: grid; gap: var(--nn-space-5); }
.nn-reason { display: grid; grid-template-columns: auto 1fr; gap: var(--nn-space-5); padding: var(--nn-space-6-5); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); }
.nn-reason__num { font-size: var(--nn-text-base); font-weight: var(--nn-weight-extrabold); color: #fff; width: 44px; height: 44px; border-radius: var(--nn-radius-md); display: grid; place-items: center; background: var(--nn-gradient); }
.nn-reason h3 { font-size: var(--nn-text-xl); margin-bottom: var(--nn-space-3); }

/* Process steps */
.nn-steps { display: grid; gap: var(--nn-space-4); grid-template-columns: minmax(0, 1fr); counter-reset: nn-step; list-style: none; padding: 0; margin: 0; }
@media (min-width: 640px) { .nn-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 992px) { .nn-steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } .nn-step--highlight:last-child:nth-child(4n + 3) { grid-column: span 2; } }
.nn-step {
    position: relative; counter-increment: nn-step;
    padding: var(--nn-space-6) var(--nn-space-5-5) var(--nn-space-5-5); border-radius: var(--nn-radius); background: #fff; border: 1px solid var(--nn-border);
    transition: border-color .2s var(--nn-ease), box-shadow .2s var(--nn-ease);
}
.nn-step:hover { border-color: color-mix(in srgb, var(--nn-brand) 35%, transparent); box-shadow: var(--nn-shadow); }
.nn-step__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--nn-space-3-5); }
.nn-step__num { font-size: var(--nn-text-xs); font-weight: var(--nn-weight-bold); color: var(--nn-primary); letter-spacing: .06em; }
.nn-step__num::before { content: counter(nn-step, decimal-leading-zero); }
.nn-step .nn-icon-tile { width: 40px; height: 40px; border-radius: var(--nn-radius-md); }
.nn-step .nn-icon-tile .nn-icon { font-size: 20px; }
.nn-step h3 { font-size: var(--nn-text-base); margin-bottom: var(--nn-space-1-5); }
.nn-step p { font-size: var(--nn-text-sm); color: var(--nn-muted); margin: 0; }
.nn-step--highlight { background: var(--nn-gradient); border-color: transparent; color: rgba(255, 255, 255, .85); }
.nn-step--highlight h3, .nn-step--highlight .nn-step__num { color: #fff; }
.nn-step--highlight p { color: rgba(255, 255, 255, .85); }
.nn-step--highlight .nn-icon-tile { background: rgba(255, 255, 255, .18); color: #fff; }

/* CTA band */
.nn-cta {
    position: relative; overflow: hidden; isolation: isolate;
    border-radius: var(--nn-radius-2xl); padding: clamp(var(--nn-space-9), 2rem + 3vw, var(--nn-space-16));
    background: var(--nn-gradient); color: rgba(255, 255, 255, .88);
    display: grid; gap: var(--nn-space-7); align-items: center;
}
.nn-cta::after {
    content: ""; position: absolute; z-index: -1; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: var(--nn-radius-round);
    background: radial-gradient(circle, rgba(255, 255, 255, .22), transparent 70%);
}
.nn-cta::before {
    content: ""; position: absolute; z-index: -1; left: -80px; bottom: -160px; width: 360px; height: 360px; border-radius: var(--nn-radius-round);
    border: 60px solid rgba(255, 255, 255, .06);
}
.nn-cta h2 { color: #fff; margin-bottom: var(--nn-space-2-5); }
.nn-cta p { margin: 0; font-size: var(--nn-text-lg); max-width: 620px; }
@media (min-width: 992px) { .nn-cta { grid-template-columns: 1fr auto; } }

/* Domain search */
.nn-domain {
    border-radius: var(--nn-radius-2xl); padding: clamp(var(--nn-space-7), 1.5rem + 3vw, var(--nn-space-14));
    background: #fff; border: 1px solid var(--nn-border); box-shadow: var(--nn-shadow);
}
.nn-domain-form { display: flex; gap: var(--nn-space-2); padding: var(--nn-space-2); border-radius: var(--nn-radius-pill); background: var(--nn-surface); border: 1.5px solid var(--nn-border); transition: border-color .2s, box-shadow .2s; }
.nn-domain-form:focus-within { border-color: var(--nn-primary); box-shadow: var(--nn-ring); background: #fff; }
.nn-domain-form__icon { display: grid; place-items: center; padding-left: var(--nn-space-3); color: var(--nn-subtle); }
@media (max-width: 479.98px) { .nn-domain-form { border-radius: var(--nn-radius-lg); flex-wrap: wrap; } .nn-domain-form .nn-btn { width: 100%; } .nn-domain-form__icon { display: none; } .nn-domain-form input { min-height: 44px; } }
.nn-domain-form input { flex: 1; min-width: 0; border: 0; background: transparent; font: 500 1rem var(--nn-font); color: var(--nn-ink); outline: none; padding: 0 var(--nn-space-1-5); }
.nn-tlds { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--nn-space-2-5); margin-top: var(--nn-space-5-5); }
@media (min-width: 768px) { .nn-tlds { grid-template-columns: repeat(6, 1fr); } }
.nn-tld { text-align: center; padding: var(--nn-space-3) var(--nn-space-2); border-radius: var(--nn-radius); background: var(--nn-surface); border: 1px solid transparent; }
.nn-tld__name { display: block; font-weight: var(--nn-weight-extrabold); font-size: clamp(.9375rem, .85rem + .4vw, 1.125rem); color: var(--nn-ink); letter-spacing: -.01em; }
.nn-tld__price { font-size: var(--nn-text-xs); color: var(--nn-muted); }
.nn-tld:nth-child(1) .nn-tld__name { color: var(--nn-primary); }
.nn-tld:nth-child(2) .nn-tld__name { color: var(--nn-danger); }

/* Pricing */
.nn-plans { display: grid; gap: var(--nn-space-6); align-items: stretch; }
@media (min-width: 768px) { .nn-plans { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.nn-plan {
    position: relative; display: flex; flex-direction: column;
    padding: var(--nn-space-8) var(--nn-space-7); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border);
}
.nn-plan--featured { border: 2px solid transparent; background: linear-gradient(#fff, #fff) padding-box, var(--nn-gradient) border-box; box-shadow: var(--nn-shadow-lg); }
@media (min-width: 768px) { .nn-plan--featured { transform: translateY(-12px); } }
.nn-plan__badge { position: absolute; top: -13px; left: 28px; }
.nn-plan__name { font-size: var(--nn-text-2xl); margin: 0 0 var(--nn-space-1); }
.nn-plan__desc { color: var(--nn-muted); font-size: var(--nn-text-md); margin: 0; }
.nn-plan__price { margin: var(--nn-space-5-5) 0; padding-bottom: var(--nn-space-5-5); border-bottom: 1px dashed var(--nn-border-strong); font-size: 2rem; font-weight: var(--nn-weight-extrabold); color: var(--nn-ink); letter-spacing: -.02em; line-height: 1.1; }
.nn-plan__price small { font-size: var(--nn-text-md); font-weight: var(--nn-weight-medium); color: var(--nn-muted); letter-spacing: 0; }
.nn-plan .nn-checklist { margin-bottom: var(--nn-space-7); }
.nn-plan .nn-btn { margin-top: auto; }

.nn-price-cards { display: grid; gap: var(--nn-space-5); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .nn-price-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 992px) { .nn-price-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.nn-price-card { padding: var(--nn-space-7); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); display: flex; flex-direction: column; gap: var(--nn-space-2-5); transition: box-shadow .2s, transform .2s; }
.nn-price-card:hover { box-shadow: var(--nn-shadow-lg); transform: translateY(-3px); }
.nn-price-card__name { font-size: var(--nn-text-3xl); font-weight: var(--nn-weight-extrabold); margin: 0; letter-spacing: -.01em; }
.nn-price-card__desc { color: var(--nn-muted); font-size: var(--nn-text-md); margin: 0; }
.nn-price-card__price { font-size: var(--nn-text-3xl); font-weight: var(--nn-weight-extrabold); color: var(--nn-ink); margin-top: auto; padding-top: var(--nn-space-2); }
.nn-price-card__price del { font-size: var(--nn-text-base); font-weight: var(--nn-weight-medium); color: var(--nn-subtle); margin-left: var(--nn-space-2); }
.nn-price-card__price small { font-size: var(--nn-text-sm); font-weight: var(--nn-weight-medium); color: var(--nn-muted); }

/* Data tables (pricing tables) — stacked cards on small screens */
.nn-table-wrap { border-radius: var(--nn-radius-xl); border: 1px solid var(--nn-border); background: #fff; overflow: hidden; }
.nn-table { width: 100%; border-collapse: collapse; font-size: var(--nn-text-md); }
.nn-table th { text-align: left; font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-bold); text-transform: uppercase; letter-spacing: .06em; color: var(--nn-muted); background: var(--nn-surface); padding: var(--nn-space-3-5) var(--nn-space-4-5); white-space: nowrap; }
.nn-table td { padding: var(--nn-space-4) var(--nn-space-4-5); border-top: 1px solid var(--nn-border); vertical-align: middle; color: var(--nn-text); }
.nn-table tbody tr { transition: background .15s; }
.nn-table tbody tr:hover { background: var(--nn-brand-50); }
.nn-table__plan { font-weight: var(--nn-weight-bold); color: var(--nn-ink); }
.nn-table__price { font-weight: var(--nn-weight-extrabold); color: var(--nn-ink); white-space: nowrap; }
.nn-table__price small { font-weight: var(--nn-weight-medium); color: var(--nn-muted); }
.nn-table__action { text-align: right; }
.nn-table .text-right, .nn-table .nn-text-right { text-align: right; }
@media (max-width: 767.98px) {
    .nn-table--stack thead { display: none; }
    .nn-table--stack, .nn-table--stack tbody, .nn-table--stack tr, .nn-table--stack td { display: block; width: 100%; }
    .nn-table--stack tr { padding: var(--nn-space-3-5) var(--nn-space-4-5); border-top: 1px solid var(--nn-border); }
    .nn-table--stack tbody tr:first-child { border-top: 0; }
    .nn-table--stack td { display: flex; justify-content: space-between; gap: var(--nn-space-4); padding: var(--nn-space-1-5) 0; border: 0; text-align: right; }
    .nn-table--stack td::before { content: attr(data-label); font-weight: var(--nn-weight-medium); color: var(--nn-muted); text-align: left; }
    .nn-table--stack td.nn-table__plan { font-size: var(--nn-text-lg); }
    .nn-table--stack td.nn-table__plan::before { content: none; }
    .nn-table--stack td.nn-table__action { padding-top: var(--nn-space-3); }
    .nn-table--stack td.nn-table__action::before { content: none; }
    .nn-table--stack td.nn-table__action .nn-btn { width: 100%; }
}
.nn-note-list { display: flex; flex-wrap: wrap; gap: var(--nn-space-2-5) var(--nn-space-6); list-style: none; padding: 0; margin: var(--nn-space-5) 0 0; font-size: var(--nn-text-sm); color: var(--nn-muted); }
.nn-note-list li { display: inline-flex; align-items: center; gap: var(--nn-space-1-5); }
.nn-note-list .nn-icon { font-size: var(--nn-icon-sm); color: var(--nn-success); }

/* ==========================================================================
   8. Page header, breadcrumb
   ========================================================================== */
.nn-page-hero {
    position: relative; overflow: hidden; isolation: isolate;
    padding-block: clamp(var(--nn-space-12), 3rem + 3vw, 88px);
    background: var(--nn-brand); color: rgba(255, 255, 255, .9);
}
.nn-page-hero::before {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background:
        radial-gradient(50% 120% at 100% 0%, color-mix(in srgb, var(--nn-glow) 40%, transparent), transparent 60%),
        radial-gradient(40% 100% at 0% 100%, color-mix(in srgb, var(--nn-brand) 50%, transparent), transparent 65%),
        var(--nn-bg-brand);
}
.nn-page-hero::after {
    content: ""; position: absolute; inset: 0; z-index: -1; opacity: .45;
    background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 40px 40px;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 70%); mask-image: linear-gradient(90deg, transparent, #000 70%);
}
.nn-page-hero__title { color: #fff; font-size: clamp(1.875rem, 1.3rem + 2.2vw, 3rem); margin: var(--nn-space-3-5) 0 var(--nn-space-3); max-width: 900px; }
.nn-page-hero__lead { font-size: var(--nn-text-lg); max-width: 720px; margin: 0; color: rgba(255, 255, 255, .78); }
.nn-page-hero__meta { display: flex; flex-wrap: wrap; gap: var(--nn-space-2) var(--nn-space-5); margin-top: var(--nn-space-4-5); font-size: var(--nn-text-sm); color: rgba(255, 255, 255, .72); }
.nn-page-hero__meta span { display: inline-flex; align-items: center; gap: var(--nn-space-1-5); }
.nn-page-hero__meta .nn-icon { font-size: var(--nn-icon-sm); color: var(--nn-cyan); }
.nn-page-hero--center { text-align: center; }
.nn-page-hero--center .nn-page-hero__title, .nn-page-hero--center .nn-page-hero__lead { margin-inline: auto; }
.nn-page-hero--center .nn-crumbs { justify-content: center; }

.nn-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: var(--nn-space-1-5); list-style: none; padding: 0; margin: 0; font-size: var(--nn-text-sm); }
.nn-crumbs li { display: inline-flex; align-items: center; gap: var(--nn-space-1-5); color: rgba(255, 255, 255, .6); }
.nn-crumbs li + li::before { content: ""; width: 5px; height: 5px; border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor; transform: rotate(45deg); opacity: .7; margin-right: var(--nn-space-1); }
.nn-crumbs a { color: rgba(255, 255, 255, .85); }
.nn-crumbs a:hover { color: #fff; }
.nn-crumbs [aria-current] { color: rgba(255, 255, 255, .6); max-width: 46ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }

/* ==========================================================================
   9. Posts, products, listings
   ========================================================================== */
.nn-post-card { display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl); overflow: hidden; transition: transform .25s var(--nn-ease), box-shadow .25s var(--nn-ease); }
.nn-post-card:hover { transform: translateY(-4px); box-shadow: var(--nn-shadow-lg); }
.nn-post-card__media { position: relative; display: block; aspect-ratio: 16 / 10; background: var(--nn-surface-2); overflow: hidden; }
.nn-post-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--nn-ease); }
.nn-post-card:hover .nn-post-card__media img { transform: scale(1.04); }
.nn-post-card__media--empty { display: grid; place-items: center; color: var(--nn-border-strong); background: linear-gradient(135deg, var(--nn-surface), var(--nn-surface-2)); }
.nn-post-card__media--empty .nn-icon { font-size: 40px; }
.nn-post-card__badge { position: absolute; left: 14px; top: 14px; background: rgba(255, 255, 255, .94); color: var(--nn-primary); box-shadow: var(--nn-shadow-sm); }
.nn-post-card__body { display: flex; flex-direction: column; flex: 1; padding: var(--nn-space-5-5) var(--nn-space-5-5) var(--nn-space-6); }
.nn-post-card__meta { display: flex; gap: var(--nn-space-3-5); font-size: var(--nn-text-xs); color: var(--nn-muted); margin-bottom: var(--nn-space-2-5); }
.nn-post-card__meta span { display: inline-flex; align-items: center; gap: 5px; }
.nn-post-card__meta .nn-icon { font-size: var(--nn-icon-xs); }
.nn-post-card__title { font-size: var(--nn-text-lg); line-height: 1.4; margin: 0 0 var(--nn-space-2-5); }
.nn-post-card__title a { color: var(--nn-ink); }
.nn-post-card__title a:hover { color: var(--nn-primary); }
.nn-post-card__excerpt { font-size: var(--nn-text-md); color: var(--nn-muted); margin: 0 0 var(--nn-space-4-5); }
.nn-post-card__more { margin-top: auto; }

.nn-mini-posts { display: grid; gap: var(--nn-space-1); list-style: none; padding: 0; margin: 0; }
.nn-mini-post { display: grid; grid-template-columns: 84px 1fr; gap: var(--nn-space-3-5); align-items: center; padding: var(--nn-space-2-5); margin-inline: -10px; border-radius: var(--nn-radius); }
.nn-mini-post:hover { background: var(--nn-surface); }
.nn-mini-post__thumb { aspect-ratio: 4 / 3; border-radius: var(--nn-radius-md); overflow: hidden; background: var(--nn-surface-2); }
.nn-mini-post__thumb img { width: 100%; height: 100%; object-fit: cover; }
.nn-mini-post__title { font-size: var(--nn-text-md); font-weight: var(--nn-weight-semibold); line-height: 1.4; color: var(--nn-ink); margin: 0; }
.nn-mini-post:hover .nn-mini-post__title { color: var(--nn-primary); }
.nn-mini-post__cat { font-size: var(--nn-text-2xs); color: var(--nn-muted); margin-top: var(--nn-space-1); display: block; }

.nn-product-card { display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl); overflow: hidden; transition: transform .25s var(--nn-ease), box-shadow .25s var(--nn-ease); }
.nn-product-card:hover { transform: translateY(-4px); box-shadow: var(--nn-shadow-lg); }
.nn-product-card__media { position: relative; display: block; aspect-ratio: 3 / 2; background: var(--nn-surface-2); overflow: hidden; }
.nn-product-card__media img { width: 100%; height: 100%; object-fit: cover; }
.nn-product-card__sale { position: absolute; top: 12px; left: 12px; background: var(--nn-danger); color: #fff; }
.nn-product-card__body { display: flex; flex-direction: column; flex: 1; padding: var(--nn-space-5); }
.nn-product-card__title { font-size: var(--nn-text-base); line-height: 1.4; margin: 0 0 var(--nn-space-1-5); }
.nn-product-card__title a { color: var(--nn-ink); }
.nn-product-card__title a:hover { color: var(--nn-primary); }
.nn-product-card__desc { font-size: var(--nn-text-sm); color: var(--nn-muted); margin: 0 0 var(--nn-space-3-5); }
.nn-product-card__price { display: flex; align-items: baseline; gap: var(--nn-space-2-5); margin: auto 0 var(--nn-space-4); }
.nn-product-card__price strong { font-size: var(--nn-text-2xl); color: var(--nn-ink); font-weight: var(--nn-weight-extrabold); }
.nn-product-card__price strong.is-sale { color: var(--nn-danger); }
.nn-product-card__price del { font-size: var(--nn-text-sm); color: var(--nn-subtle); }
.nn-product-card form { margin: 0; }

.nn-job-card { display: flex; flex-direction: column; gap: var(--nn-space-3-5); height: 100%; padding: var(--nn-space-6-5); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); transition: transform .25s, box-shadow .25s, border-color .25s; }
.nn-job-card:hover { transform: translateY(-3px); box-shadow: var(--nn-shadow-lg); border-color: transparent; }
.nn-job-card__title { font-size: var(--nn-text-xl); margin: 0; }
.nn-job-card__title a { color: var(--nn-ink); }
.nn-job-card__title a:hover { color: var(--nn-primary); }
.nn-job-card__desc { color: var(--nn-muted); font-size: var(--nn-text-md); margin: 0; }
.nn-job-card__foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-3); padding-top: var(--nn-space-3-5); border-top: 1px solid var(--nn-border); }
.nn-meta-list { display: flex; flex-wrap: wrap; gap: var(--nn-space-2); list-style: none; margin: 0; padding: 0; }
.nn-meta-list li { display: inline-flex; align-items: center; gap: var(--nn-space-1-5); padding: 5px var(--nn-space-3); border-radius: var(--nn-radius-pill); background: var(--nn-surface); font-size: var(--nn-text-xs); color: var(--nn-text); }
.nn-meta-list .nn-icon { font-size: var(--nn-icon-xs); color: var(--nn-primary); }

.nn-empty { text-align: center; padding: var(--nn-space-16) var(--nn-space-6); border: 1.5px dashed var(--nn-border-strong); border-radius: var(--nn-radius-xl); color: var(--nn-muted); grid-column: 1 / -1; }
.nn-empty .nn-icon { font-size: 44px; color: var(--nn-border-strong); margin-bottom: var(--nn-space-2-5); }

/* Pagination */
.nn-pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--nn-space-1-5); list-style: none; padding: 0; margin: var(--nn-space-12) 0 0; }
.nn-pagination a, .nn-pagination span {
    min-width: 42px; height: 42px; padding: 0 var(--nn-space-3); display: inline-grid; place-items: center;
    border-radius: var(--nn-radius-md); font-weight: var(--nn-weight-semibold); font-size: var(--nn-text-md); color: var(--nn-text);
    background: #fff; border: 1px solid var(--nn-border); transition: all .15s var(--nn-ease);
}
.nn-pagination a:hover { border-color: var(--nn-primary); color: var(--nn-primary); }
.nn-pagination .is-active span { background: var(--nn-gradient); border-color: transparent; color: #fff; box-shadow: 0 6px 14px -6px color-mix(in srgb, var(--nn-brand) 60%, transparent); }
.nn-pagination .is-disabled span { color: var(--nn-subtle); background: var(--nn-surface); }
.nn-pagination .nn-icon { font-size: var(--nn-icon-md); }

/* ==========================================================================
   10. Article / prose
   ========================================================================== */
.nn-article-layout { display: grid; gap: var(--nn-space-12); }
@media (min-width: 992px) { .nn-article-layout { grid-template-columns: minmax(0, 1fr) 320px; gap: var(--nn-space-14); } }
.nn-sidebar { display: grid; gap: var(--nn-space-6); align-content: start; }
@media (min-width: 992px) { .nn-sidebar--sticky { position: sticky; top: calc(var(--nn-header-h) + 24px); } }
.nn-widget { padding: var(--nn-space-6); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); }
.nn-widget__title { font-size: var(--nn-text-base); margin-bottom: var(--nn-space-4); display: flex; align-items: center; gap: var(--nn-space-2); }
.nn-widget__title::before { content: ""; width: 4px; height: 18px; border-radius: 2px; background: var(--nn-gradient); }
.nn-widget--gradient { background: var(--nn-gradient); border: 0; color: rgba(255, 255, 255, .88); }
.nn-widget--gradient .nn-widget__title { color: #fff; }
.nn-widget--gradient .nn-widget__title::before { background: #fff; }

.nn-prose { font-size: var(--nn-text-lg); line-height: var(--nn-leading-relaxed); color: var(--nn-text); overflow-wrap: break-word; }
.nn-prose > :first-child { margin-top: 0; }
.nn-prose h1, .nn-prose h2, .nn-prose h3, .nn-prose h4, .nn-prose h5, .nn-prose h6 { margin: 1.8em 0 .6em; scroll-margin-top: calc(var(--nn-header-h) + 16px); }
.nn-prose h1 { font-size: var(--nn-text-4xl); }
.nn-prose h2 { font-size: var(--nn-text-3xl); }
.nn-prose h3 { font-size: var(--nn-text-2xl); }
.nn-prose h4 { font-size: var(--nn-text-xl); }
.nn-prose p, .nn-prose ul, .nn-prose ol, .nn-prose blockquote, .nn-prose table, .nn-prose pre, .nn-prose figure { margin: 0 0 1.25em; }
.nn-prose ul, .nn-prose ol { padding-left: 1.4em; }
.nn-prose ul { list-style: disc; }
.nn-prose li { margin-bottom: .4em; }
.nn-prose li::marker { color: var(--nn-primary); }
.nn-prose a { color: var(--nn-primary); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--nn-brand) 35%, transparent); text-underline-offset: 3px; }
.nn-prose a:hover { text-decoration-color: currentColor; }
.nn-prose strong, .nn-prose b { color: var(--nn-ink); font-weight: var(--nn-weight-bold); }
.nn-prose img { border-radius: var(--nn-radius); height: auto !important; }
.nn-prose figure figcaption { font-size: var(--nn-text-sm); color: var(--nn-muted); text-align: center; margin-top: var(--nn-space-2); }
.nn-prose blockquote { padding: var(--nn-space-4-5) var(--nn-space-5-5); border-left: 4px solid var(--nn-primary); background: var(--nn-surface); border-radius: 0 var(--nn-radius) var(--nn-radius) 0; color: var(--nn-ink); font-style: italic; }
.nn-prose blockquote > :last-child { margin-bottom: 0; }
.nn-prose table { width: 100%; border-collapse: collapse; font-size: var(--nn-text-md); display: block; overflow-x: auto; }
.nn-prose th, .nn-prose td { border: 1px solid var(--nn-border); padding: var(--nn-space-2-5) var(--nn-space-3-5); }
.nn-prose th { background: var(--nn-surface); color: var(--nn-ink); text-align: left; }
.nn-prose code { font-family: var(--nn-mono); font-size: .875em; background: var(--nn-surface-2); padding: .15em .4em; border-radius: var(--nn-radius-xs); color: var(--nn-accent-600); }
.nn-prose pre { background: var(--nn-ink); color: var(--nn-border); padding: var(--nn-space-4-5) var(--nn-space-5); border-radius: var(--nn-radius); overflow-x: auto; font-size: var(--nn-text-sm); line-height: 1.6; }
.nn-prose pre code { background: none; color: inherit; padding: 0; }
.nn-prose pre code.hljs { padding: 0; background: transparent; }
.nn-prose iframe { max-width: 100%; border-radius: var(--nn-radius); }
.nn-prose .font-color-description { color: var(--nn-primary); }

.nn-tags { display: flex; flex-wrap: wrap; gap: var(--nn-space-2); align-items: center; }
.nn-tags a { display: inline-block; padding: var(--nn-space-1-5) var(--nn-space-3-5); border-radius: var(--nn-radius-pill); background: var(--nn-surface); color: var(--nn-text); font-size: var(--nn-text-xs); font-weight: var(--nn-weight-medium); }
.nn-tags a:hover { background: var(--nn-primary-soft); color: var(--nn-primary); }
.nn-share { display: flex; align-items: center; gap: var(--nn-space-2); }
.nn-share a, .nn-share button { width: 40px; height: 40px; display: grid; place-items: center; border-radius: var(--nn-radius-round); background: var(--nn-surface); color: var(--nn-text); border: 0; cursor: pointer; }
.nn-share a:hover, .nn-share button:hover { background: var(--nn-primary); color: #fff; }
.nn-share .nn-icon { font-size: var(--nn-icon-md); }
.nn-article-foot { margin-top: var(--nn-space-10); padding-top: var(--nn-space-6); border-top: 1px solid var(--nn-border); display: flex; flex-wrap: wrap; gap: var(--nn-space-5); align-items: center; justify-content: space-between; }

/* ==========================================================================
   11. Forms
   ========================================================================== */
.nn-form { display: grid; gap: var(--nn-space-4-5); }
.nn-form-row { display: grid; gap: var(--nn-space-4-5); }
@media (min-width: 640px) { .nn-form-row--2 { grid-template-columns: 1fr 1fr; } }
.nn-field { display: grid; gap: var(--nn-space-1-5); }
.nn-label { font-size: var(--nn-text-sm); font-weight: var(--nn-weight-semibold); color: var(--nn-ink); display: block; }
.nn-label--split { display: flex; justify-content: space-between; align-items: baseline; gap: var(--nn-space-2); }
.nn-label .nn-req { color: var(--nn-danger); }
.nn-label a { font-weight: var(--nn-weight-medium); font-size: var(--nn-text-xs); }
.nn-input, .nn-select, .nn-textarea {
    width: 100%; min-height: 48px; padding: var(--nn-space-3) var(--nn-space-4);
    font: 400 .9375rem/1.4 var(--nn-font); color: var(--nn-ink);
    background: #fff; border: 1.5px solid var(--nn-border); border-radius: var(--nn-radius-md);
    transition: border-color .15s var(--nn-ease), box-shadow .15s var(--nn-ease);
    -webkit-appearance: none; appearance: none;
}
.nn-input::placeholder, .nn-textarea::placeholder { color: var(--nn-subtle); }
.nn-input:hover, .nn-select:hover, .nn-textarea:hover { border-color: var(--nn-border-strong); }
.nn-input:focus, .nn-select:focus, .nn-textarea:focus { outline: none; border-color: var(--nn-primary); box-shadow: var(--nn-ring); }
.nn-input[readonly] { background: var(--nn-surface); color: var(--nn-muted); }
.nn-textarea { min-height: 120px; resize: vertical; }
.nn-select { background: #fff url("https://api.iconify.design/lucide/chevron-down.svg?color=%2364748b") right 14px center / 18px no-repeat; padding-right: 42px; }
.nn-input.is-invalid, .nn-select.is-invalid, .nn-textarea.is-invalid { border-color: var(--nn-danger); }
.nn-input.is-invalid:focus { box-shadow: 0 0 0 4px color-mix(in srgb, var(--nn-danger) 15%, transparent); }
/* Select có ô tìm kiếm: <select data-nn-combo> được theme.js nâng cấp (select gốc vẫn giữ để submit form) */
.nn-combo { position: relative; }
.nn-combo > select { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; pointer-events: none; }
.nn-combo__toggle { display: flex; align-items: center; gap: var(--nn-space-2); text-align: left; cursor: pointer; }
.nn-combo__toggle > span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nn-combo__toggle.is-empty > span { color: var(--nn-subtle); }
.nn-combo__toggle:disabled { cursor: not-allowed; background-color: var(--nn-surface); color: var(--nn-subtle); }
.nn-combo.is-loading .nn-combo__toggle { background-image: none; }
.nn-combo.is-loading .nn-combo__toggle::after { content: ""; width: 16px; height: 16px; flex: none; margin-right: -26px; border-radius: 50%; border: 2px solid var(--nn-border); border-top-color: var(--nn-primary); animation: nn-spin .7s linear infinite; }
.nn-combo.is-open .nn-combo__toggle { border-color: var(--nn-primary); box-shadow: var(--nn-ring); }
.nn-combo__pop { position: absolute; left: 0; right: 0; top: calc(100% + 6px); z-index: var(--nn-z-dropdown); padding: var(--nn-space-2); border-radius: var(--nn-radius-lg); background: #fff; border: 1px solid var(--nn-border); box-shadow: var(--nn-shadow-lg); opacity: 0; visibility: hidden; transform: translateY(-4px); transition: opacity .15s var(--nn-ease), transform .15s var(--nn-ease), visibility .15s; }
.nn-combo.is-open .nn-combo__pop { opacity: 1; visibility: visible; transform: none; transition-duration: .15s, .15s, 0s; } /* visibility đổi ngay để focus được ô tìm kiếm */
.nn-combo.is-up .nn-combo__pop { top: auto; bottom: calc(100% + 6px); }
.nn-combo__search { position: relative; display: flex; align-items: center; margin-bottom: var(--nn-space-1-5); }
.nn-combo__search .nn-icon { position: absolute; left: var(--nn-space-3); color: var(--nn-subtle); pointer-events: none; }
.nn-combo__search input { width: 100%; height: 40px; padding: 0 var(--nn-space-3) 0 36px; border-radius: var(--nn-radius-md); border: 1px solid var(--nn-border); background: var(--nn-surface); font: inherit; font-size: var(--nn-text-sm); color: var(--nn-ink); }
.nn-combo__search input:focus { outline: 0; border-color: var(--nn-primary); background: #fff; }
.nn-combo__list { list-style: none; margin: 0; padding: 0; max-height: 264px; overflow-y: auto; overscroll-behavior: contain; }
.nn-combo__list li { display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-2); padding: var(--nn-space-2) var(--nn-space-3); border-radius: var(--nn-radius-sm); font-size: var(--nn-text-sm); color: var(--nn-text); cursor: pointer; }
.nn-combo__list li.is-active { background: var(--nn-surface); color: var(--nn-ink); }
.nn-combo__list li[aria-selected="true"] { color: var(--nn-primary); font-weight: var(--nn-weight-semibold); }
.nn-combo__list li[aria-selected="true"]::after { content: "✓"; }
.nn-combo__list mark { padding: 0; background: none; color: var(--nn-primary); font-weight: var(--nn-weight-semibold); }
.nn-combo__empty { padding: var(--nn-space-4) var(--nn-space-3); font-size: var(--nn-text-sm); text-align: center; color: var(--nn-muted); }
@keyframes nn-spin { to { transform: rotate(360deg); } }
.nn-error { font-size: var(--nn-text-xs); color: var(--nn-danger); }
.nn-hint { font-size: var(--nn-text-xs); color: var(--nn-muted); }
.nn-input-icon { position: relative; }
.nn-input-icon > .nn-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); font-size: var(--nn-icon-md); color: var(--nn-subtle); pointer-events: none; }
.nn-input-icon .nn-input { padding-left: 46px; }
.nn-input-icon:focus-within > .nn-icon { color: var(--nn-primary); }
.nn-check { display: inline-flex; align-items: center; gap: var(--nn-space-2-5); font-size: var(--nn-text-md); cursor: pointer; }
.nn-check input { width: 18px; height: 18px; accent-color: var(--nn-primary); margin: 0; }
.nn-file { display: flex; align-items: center; gap: var(--nn-space-3-5); padding: var(--nn-space-3-5) var(--nn-space-4); border: 1.5px dashed var(--nn-border-strong); border-radius: var(--nn-radius-md); background: var(--nn-surface); cursor: pointer; transition: border-color .15s, background .15s; }
.nn-file:hover, .nn-file:focus-within { border-color: var(--nn-primary); background: var(--nn-primary-soft); }
.nn-file input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.nn-file__text { font-size: var(--nn-text-md); color: var(--nn-text); }
.nn-file__text small { display: block; color: var(--nn-muted); font-size: var(--nn-text-xs); }

.nn-alert { display: flex; gap: var(--nn-space-3); align-items: flex-start; padding: var(--nn-space-3-5) var(--nn-space-4-5); border-radius: var(--nn-radius-md); font-size: var(--nn-text-md); margin-bottom: var(--nn-space-5); border: 1px solid transparent; }
.nn-alert .nn-icon { margin-top: var(--nn-space-0-5); font-size: var(--nn-icon-md); }
.nn-alert ul { margin: 0; padding-left: 1.1em; }
.nn-alert--success { background: var(--nn-success-soft); color: var(--nn-success-700); border-color: color-mix(in srgb, var(--nn-success) 20%, transparent); }
.nn-alert--danger { background: var(--nn-danger-soft); color: var(--nn-danger-700); border-color: color-mix(in srgb, var(--nn-danger) 20%, transparent); }
.nn-alert--info { background: var(--nn-primary-soft); color: var(--nn-brand-700); border-color: color-mix(in srgb, var(--nn-brand) 18%, transparent); }

/* Auth (login/register) */
.nn-auth { min-height: calc(100vh - var(--nn-header-h)); display: grid; background: var(--nn-surface); }
@media (min-width: 992px) { .nn-auth { grid-template-columns: 5fr 6fr; } }
.nn-auth__aside {
    position: relative; overflow: hidden; isolation: isolate; display: none;
    padding: var(--nn-space-16); color: rgba(255, 255, 255, .8); background: var(--nn-deep);
}
.nn-auth__aside::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(70% 60% at 100% 0%, color-mix(in srgb, var(--nn-glow) 45%, transparent), transparent 60%), radial-gradient(60% 60% at 0% 100%, color-mix(in srgb, var(--nn-brand) 55%, transparent), transparent 60%); }
@media (min-width: 992px) { .nn-auth__aside { display: flex; flex-direction: column; justify-content: center; } }
.nn-auth__aside h2 { color: #fff; font-size: 2rem; margin-bottom: var(--nn-space-4); }
.nn-auth__aside .nn-checklist { margin-top: var(--nn-space-7); }
.nn-auth__main { display: grid; place-items: center; padding: var(--nn-space-12) var(--nn-space-5); }
.nn-auth__card { width: 100%; max-width: 460px; padding: clamp(var(--nn-space-7), 1.5rem + 2vw, var(--nn-space-11)); border-radius: var(--nn-radius-xl); background: #fff; box-shadow: var(--nn-shadow-lg); border: 1px solid var(--nn-border); }
.nn-auth__title { font-size: 1.75rem; margin-bottom: var(--nn-space-1-5); }
.nn-auth__sub { color: var(--nn-muted); margin-bottom: var(--nn-space-7); font-size: var(--nn-text-md); }
.nn-auth__foot { margin-top: var(--nn-space-6); padding-top: var(--nn-space-5); border-top: 1px solid var(--nn-border); text-align: center; font-size: var(--nn-text-md); color: var(--nn-muted); }

/* Account */
.nn-account { display: grid; gap: var(--nn-space-7); }
@media (min-width: 992px) { .nn-account { grid-template-columns: 280px 1fr; align-items: start; } }
.nn-account__nav { padding: var(--nn-space-3); border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); display: grid; gap: var(--nn-space-0-5); }
.nn-account__user { display: flex; align-items: center; gap: var(--nn-space-3); padding: var(--nn-space-3) var(--nn-space-3) var(--nn-space-4); margin-bottom: var(--nn-space-1-5); border-bottom: 1px solid var(--nn-border); }
.nn-avatar { width: 44px; height: 44px; border-radius: var(--nn-radius-round); display: grid; place-items: center; background: var(--nn-gradient); color: #fff; font-weight: var(--nn-weight-bold); flex: none; }
.nn-account__user strong { display: block; color: var(--nn-ink); line-height: 1.3; }
.nn-account__user small { color: var(--nn-muted); word-break: break-all; }
.nn-account__link { display: flex; align-items: center; gap: var(--nn-space-2-5); padding: 11px var(--nn-space-3); border-radius: var(--nn-radius-md); color: var(--nn-text); font-weight: var(--nn-weight-medium); font-size: var(--nn-text-md); }
.nn-account__link:hover { background: var(--nn-surface); color: var(--nn-ink); }
.nn-account__link.is-active { background: var(--nn-primary-soft); color: var(--nn-primary); }
.nn-account__link--danger { color: var(--nn-danger); }
.nn-account__link--danger:hover { background: var(--nn-danger-soft); color: var(--nn-danger); }
.nn-account__link .nn-icon { font-size: var(--nn-icon-md); }
.nn-panel-card { border-radius: var(--nn-radius-xl); background: #fff; border: 1px solid var(--nn-border); }
.nn-panel-card__head { padding: var(--nn-space-5-5) var(--nn-space-7); border-bottom: 1px solid var(--nn-border); }
.nn-panel-card__head h2 { font-size: var(--nn-text-2xl); margin: 0; }
.nn-panel-card__head p { margin: var(--nn-space-1) 0 0; font-size: var(--nn-text-md); color: var(--nn-muted); }
.nn-panel-card__body { padding: var(--nn-space-7); }

/* Contact */
.nn-contact-info { display: grid; gap: var(--nn-space-4-5); list-style: none; padding: 0; margin: 0 0 var(--nn-space-6); }
.nn-contact-info li { display: grid; grid-template-columns: auto 1fr; gap: var(--nn-space-3-5); align-items: start; }
.nn-contact-info .nn-icon-tile { width: 44px; height: 44px; border-radius: var(--nn-radius-md); }
.nn-contact-info .nn-icon-tile .nn-icon { font-size: 20px; }
.nn-contact-info strong { display: block; color: inherit; font-size: var(--nn-text-xs); font-weight: var(--nn-weight-medium); opacity: .75; }
.nn-contact-info a, .nn-contact-info span { color: inherit; font-weight: var(--nn-weight-semibold); }
.nn-map { border-radius: var(--nn-radius-xl); overflow: hidden; border: 1px solid var(--nn-border); height: clamp(320px, 38vw, 480px); background: var(--nn-surface-2); }
.nn-map iframe { width: 100%; height: 100%; border: 0; display: block; }

/* Dialog */
.nn-dialog { width: min(560px, calc(100vw - 32px)); max-height: calc(100vh - 32px); padding: 0; border: 0; border-radius: var(--nn-radius-xl); box-shadow: var(--nn-shadow-lg); color: var(--nn-text); overflow: auto; }
.nn-dialog::backdrop { background: color-mix(in srgb, var(--nn-ink) 55%, transparent); backdrop-filter: blur(3px); }
.nn-dialog[open] { animation: nn-pop .25s var(--nn-ease); }
@keyframes nn-pop { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }
.nn-dialog__head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--nn-space-4); padding: var(--nn-space-7) var(--nn-space-7) 0; }
.nn-dialog__head h2 { font-size: var(--nn-text-3xl); margin: 0 0 var(--nn-space-1); }
.nn-dialog__head p { margin: 0; color: var(--nn-muted); font-size: var(--nn-text-md); }
.nn-dialog__body { padding: var(--nn-space-6) var(--nn-space-7) var(--nn-space-7); }

/* ==========================================================================
   12. Footer
   ========================================================================== */
.nn-footer { position: relative; overflow: hidden; isolation: isolate; background: var(--nn-deep-900); color: rgba(255, 255, 255, .68); font-size: var(--nn-text-md); }
.nn-footer::before { content: ""; position: absolute; z-index: -1; inset: 0; background: radial-gradient(40% 60% at 100% 0%, color-mix(in srgb, var(--nn-glow) 18%, transparent), transparent 70%), radial-gradient(30% 50% at 0% 0%, color-mix(in srgb, var(--nn-brand) 25%, transparent), transparent 70%); }
.nn-footer a { color: rgba(255, 255, 255, .78); }
.nn-footer a:hover { color: #fff; }
.nn-footer__main { display: grid; gap: var(--nn-space-10); padding-block: var(--nn-space-18) var(--nn-space-12); }
@media (min-width: 768px) { .nn-footer__main { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .nn-footer__main { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: var(--nn-space-12); } }
.nn-footer__about p { margin: var(--nn-space-4-5) 0 var(--nn-space-5-5); max-width: 360px; }
.nn-footer__title { font-size: var(--nn-text-xs); font-weight: var(--nn-weight-bold); color: #fff; text-transform: uppercase; letter-spacing: .1em; margin-bottom: var(--nn-space-4-5); }
.nn-footer__links { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--nn-space-2-5); }
.nn-footer__links a { display: inline-flex; align-items: center; gap: var(--nn-space-2); }
.nn-footer .nn-contact-info { gap: var(--nn-space-3-5); }
.nn-footer .nn-contact-info .nn-icon-tile { width: 38px; height: 38px; border-radius: var(--nn-radius-md); }
.nn-footer .nn-contact-info .nn-icon-tile .nn-icon { font-size: 18px; }
.nn-footer .nn-contact-info span { font-weight: var(--nn-weight-medium); }
.nn-footer__social { display: flex; flex-wrap: wrap; gap: var(--nn-space-1-5); list-style: none; padding: 0; margin: 0; }
.nn-footer__social a {
    --c: var(--nn-primary);
    width: 38px; height: 38px; display: grid; place-items: center; border-radius: var(--nn-radius-round);
    color: rgba(255, 255, 255, .8); background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .08);
    transition: background-color .25s var(--nn-ease), color .25s, transform .3s var(--nn-ease-out), box-shadow .25s;
}
.nn-footer__social a:hover, .nn-footer__social a:focus-visible {
    background: var(--c); border-color: transparent; color: #fff; transform: translateY(-3px);
    box-shadow: 0 10px 20px -10px var(--c), 0 0 0 1px rgba(255, 255, 255, .15) inset; outline: 0;
}
.nn-footer__social .nn-icon { font-size: 18px; }
.nn-footer__bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-block: var(--nn-space-6); font-size: var(--nn-text-xs); color: rgba(255, 255, 255, .55); }
.nn-footer__bottom-inner { display: grid; gap: var(--nn-space-4-5); align-items: center; }
@media (min-width: 992px) { .nn-footer__bottom-inner { grid-template-columns: 1fr auto; } }
.nn-footer__bottom p { margin: 0 0 var(--nn-space-0-5); }
.nn-footer__badge img { width: 150px; height: auto; display: block; }

.nn-to-top {
    position: fixed; right: var(--tt-right, 20px); bottom: var(--tt-bottom, 20px); z-index: var(--nn-z-float);
    width: 46px; height: 46px; border-radius: var(--nn-radius-round); display: grid; place-items: center; font-size: 20px;
    background: var(--nn-primary); color: #fff; border: 0; cursor: pointer;
    box-shadow: 0 12px 24px -10px color-mix(in srgb, var(--nn-primary) 80%, transparent);
    opacity: 0; visibility: hidden; transform: translateY(12px) scale(.9);
    transition: opacity .25s, transform .3s var(--nn-ease-out), visibility .25s, background .2s, right .5s var(--nn-ease-out), bottom .5s var(--nn-ease-out);
}
.nn-to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.nn-to-top:hover { background: var(--nn-primary-hover); transform: translateY(-3px); }
.nn-to-top:focus-visible { outline: 0; box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--nn-primary); }

/* Error pages */
.nn-error-page { min-height: 100vh; display: grid; place-items: center; text-align: center; padding: var(--nn-space-12) var(--nn-space-5); }
.nn-error-page__code { font-size: clamp(5rem, 3rem + 10vw, 10rem); font-weight: var(--nn-weight-extrabold); line-height: var(--nn-leading-none); letter-spacing: -.04em; margin-bottom: var(--nn-space-2); }
.nn-error-page__msg { font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem); color: #fff; margin-bottom: var(--nn-space-7); }
.nn-error-page__form { display: flex; gap: var(--nn-space-2); justify-content: center; max-width: 380px; margin-inline: auto; }

/* ==========================================================================
   13. Reveal on scroll
   ========================================================================== */
.nn-js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--nn-ease), transform .6s var(--nn-ease); }
.nn-js [data-reveal].is-revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .nn-js [data-reveal] { opacity: 1; transform: none; } }

/* ==========================================================================
   14. Bootstrap components used by module views (shop, learning…)
   ========================================================================== */
.main > .container, .main > div > .container { padding-top: var(--nn-space-2); }
.btn { font-family: var(--nn-font); font-weight: var(--nn-weight-semibold); border-radius: var(--nn-radius-pill); padding: .55rem 1.25rem; transition: all .18s var(--nn-ease); }
.btn-sm { padding: .35rem .9rem; }
.btn-primary { background: var(--nn-primary); border-color: var(--nn-primary); }
.btn-primary:hover, .btn-primary:focus, .btn-primary:not(:disabled):not(.disabled):active { background: var(--nn-primary-hover); border-color: var(--nn-primary-hover); }
.btn-outline-primary { color: var(--nn-primary); border-color: var(--nn-primary); }
.btn-outline-primary:hover { background: var(--nn-primary); border-color: var(--nn-primary); }
.btn-outline-secondary { color: var(--nn-text); border-color: var(--nn-border-strong); }
.btn-outline-secondary:hover { background: var(--nn-surface); color: var(--nn-ink); border-color: var(--nn-border-strong); }
.btn:focus, .btn.focus { box-shadow: var(--nn-ring); }
.form-control { min-height: 46px; border: 1.5px solid var(--nn-border); border-radius: var(--nn-radius-md); color: var(--nn-ink); font-family: var(--nn-font); }
.form-control-sm { min-height: 38px; border-radius: var(--nn-radius-md); }
.form-control:focus { border-color: var(--nn-primary); box-shadow: var(--nn-ring); }
.card { border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl); overflow: hidden; }
.card-header { background: var(--nn-surface); border-bottom: 1px solid var(--nn-border); font-weight: var(--nn-weight-semibold); color: var(--nn-ink); padding: var(--nn-space-4) var(--nn-space-5-5); }
.card-body { padding: var(--nn-space-5-5); }
.card .card-img-top { aspect-ratio: 16 / 10; object-fit: cover; }
.list-group-item { border-color: var(--nn-border); padding: var(--nn-space-3-5) var(--nn-space-5); }
.list-group-item.active { background: var(--nn-primary); border-color: var(--nn-primary); }
.table { color: var(--nn-text); }
.table thead th { border-bottom: 1px solid var(--nn-border); border-top: 0; font-size: var(--nn-text-2xs); text-transform: uppercase; letter-spacing: .06em; color: var(--nn-muted); }
.table td, .table th { border-top-color: var(--nn-border); padding: var(--nn-space-3-5) var(--nn-space-4); vertical-align: middle; }
.alert { border-radius: var(--nn-radius-md); }
.alert-success { background: var(--nn-success-soft); color: var(--nn-success-700); border-color: color-mix(in srgb, var(--nn-success) 20%, transparent); }
.alert-danger { background: var(--nn-danger-soft); color: var(--nn-danger-700); border-color: color-mix(in srgb, var(--nn-danger) 20%, transparent); }
.alert-info { background: var(--nn-primary-soft); color: var(--nn-brand-700); border-color: color-mix(in srgb, var(--nn-brand) 18%, transparent); }
.text-primary { color: var(--nn-primary) !important; }
.text-muted { color: var(--nn-muted) !important; }
.badge-primary { background: var(--nn-primary); }
.pagination { gap: var(--nn-space-1-5); }
.page-link { border-radius: var(--nn-radius-md) !important; color: var(--nn-text); border-color: var(--nn-border); }
.page-item.active .page-link { background: var(--nn-primary); border-color: var(--nn-primary); }
.course-detail .main h1, .lesson-detail .main h1, .product-detail .main h1, .category-detail .main h1, .course-list .main h1,
.cart .main h1, .checkout .main h1, .order-detail .main h1 { margin-top: var(--nn-space-6); }
.course-detail .main, .lesson-detail .main, .product-detail .main, .category-detail .main, .course-list .main,
.cart .main, .checkout .main, .order-detail .main { padding-bottom: var(--nn-space-16); }
.embed-responsive { border-radius: var(--nn-radius); }

/* ==========================================================================
   15. Atoms bổ sung — dùng chung cho mọi giao diện mới
   ========================================================================== */

/* Button: biến thể bổ sung */
.nn-btn--danger { --_bg: var(--nn-danger); --_fg: #fff; }
.nn-btn--danger:hover { --_bg: var(--nn-danger-700); }
.nn-btn--icon { width: 46px; padding: 0; }
.nn-btn--icon.nn-btn--sm { width: 38px; }
.nn-btn--icon.nn-btn--lg { width: 54px; }
.nn-btn.is-loading { position: relative; color: transparent !important; pointer-events: none; }
.nn-btn.is-loading::after {
    content: ""; position: absolute; width: 18px; height: 18px; border-radius: var(--nn-radius-round);
    border: 2px solid currentColor; border-color: var(--_fg) var(--_fg) transparent transparent;
    animation: nn-spin .7s linear infinite;
}

/* Badge: biến thể bổ sung */
.nn-badge--warning { background: var(--nn-warning-soft); color: var(--nn-warning-700); }
.nn-badge--neutral { background: var(--nn-surface-2); color: var(--nn-text); }
.nn-badge--outline { background: transparent; color: var(--nn-text); box-shadow: inset 0 0 0 1px var(--nn-border-strong); }
.nn-badge__dot { width: 6px; height: 6px; border-radius: var(--nn-radius-round); background: currentColor; }

/* Chip chọn (radio/checkbox) */
.nn-chips { display: flex; flex-wrap: wrap; gap: var(--nn-space-2); border: 0; padding: 0; margin: 0; }
.nn-chip { cursor: pointer; }
.nn-chip input { position: absolute; opacity: 0; pointer-events: none; }
.nn-chip span {
    display: inline-flex; align-items: center; gap: var(--nn-space-1-5); padding: var(--nn-space-2) var(--nn-space-3-5);
    border-radius: var(--nn-radius-pill); border: 1.5px solid var(--nn-border); font-size: var(--nn-text-sm);
    font-weight: var(--nn-weight-semibold); color: var(--nn-text); transition: all var(--nn-duration) var(--nn-ease);
}
.nn-chip:hover span { border-color: var(--nn-border-strong); }
.nn-chip input:checked + span { color: #fff; border-color: transparent; background: var(--nn-gradient); box-shadow: var(--nn-shadow-brand); }
.nn-chip input:focus-visible + span { box-shadow: var(--nn-ring); }

/* Avatar */
.nn-avatar--sm { width: 32px; height: 32px; font-size: var(--nn-text-2xs); }
.nn-avatar--lg { width: 56px; height: 56px; font-size: var(--nn-text-xl); }
.nn-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.nn-avatar-group { display: flex; }
.nn-avatar-group .nn-avatar { box-shadow: 0 0 0 2px #fff; }
.nn-avatar-group .nn-avatar + .nn-avatar { margin-left: calc(var(--nn-space-2-5) * -1); }

/* Form: kích thước, nhóm input, switch */
.nn-input--sm, .nn-select--sm { min-height: 38px; padding: var(--nn-space-2) var(--nn-space-3); font-size: var(--nn-text-sm); border-radius: var(--nn-radius-md); }
.nn-input--lg { min-height: 56px; padding: var(--nn-space-4) var(--nn-space-5); font-size: var(--nn-text-base); }
.nn-input-group { display: flex; gap: var(--nn-space-2); }
.nn-input-group .nn-input { flex: 1; min-width: 0; }
.nn-switch { display: inline-flex; align-items: center; gap: var(--nn-space-3); cursor: pointer; font-size: var(--nn-text-md); }
.nn-switch input { position: absolute; opacity: 0; pointer-events: none; }
.nn-switch__track { position: relative; width: 44px; height: 26px; border-radius: var(--nn-radius-pill); background: var(--nn-border-strong); transition: background var(--nn-duration) var(--nn-ease); flex: none; }
.nn-switch__track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: var(--nn-radius-round); background: #fff; box-shadow: var(--nn-shadow-sm); transition: transform var(--nn-duration) var(--nn-ease-out); }
.nn-switch input:checked + .nn-switch__track { background: var(--nn-primary); }
.nn-switch input:checked + .nn-switch__track::after { transform: translateX(18px); }
.nn-switch input:focus-visible + .nn-switch__track { box-shadow: var(--nn-ring); }
.nn-switch input:disabled + .nn-switch__track { opacity: .5; }

/* Alert */
.nn-alert--warning { background: var(--nn-warning-soft); color: var(--nn-warning-700); border-color: color-mix(in srgb, var(--nn-warning) 25%, transparent); }
.nn-alert--preview { margin: var(--nn-space-5) 0; }

/* Progress, spinner, skeleton */
.nn-progress { position: relative; height: 8px; border-radius: var(--nn-radius-pill); background: var(--nn-surface-2); overflow: hidden; }
.nn-progress > span { position: absolute; inset: 0 auto 0 0; width: var(--value, 0%); border-radius: inherit; background: var(--nn-gradient); transition: width var(--nn-duration-slow) var(--nn-ease-out); }
.nn-progress--sm { height: 4px; }
.nn-spinner { display: inline-block; width: 24px; height: 24px; border-radius: var(--nn-radius-round); border: 3px solid var(--nn-brand-100); border-top-color: var(--nn-primary); animation: nn-spin .7s linear infinite; }
.nn-spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.nn-skeleton {
    display: block; min-height: 1em; border-radius: var(--nn-radius-sm);
    background: linear-gradient(90deg, var(--nn-surface-2) 25%, var(--nn-surface) 50%, var(--nn-surface-2) 75%);
    background-size: 200% 100%; animation: nn-shimmer 1.4s linear infinite;
}
@keyframes nn-spin { to { transform: rotate(360deg); } }
@keyframes nn-shimmer { to { background-position: -200% 0; } }

/* Divider, kbd */
.nn-divider { display: flex; align-items: center; gap: var(--nn-space-3); margin: var(--nn-space-6) 0; color: var(--nn-subtle); font-size: var(--nn-text-xs); font-weight: var(--nn-weight-semibold); text-transform: uppercase; letter-spacing: var(--nn-tracking-wide); }
.nn-divider::before, .nn-divider::after { content: ""; flex: 1; height: 1px; background: var(--nn-border); }
.nn-divider:empty { gap: 0; }
.nn-kbd { display: inline-block; padding: 1px var(--nn-space-1-5); border-radius: var(--nn-radius-xs); border: 1px solid var(--nn-border-strong); border-bottom-width: 2px; background: #fff; font: var(--nn-weight-semibold) var(--nn-text-2xs) / 1.6 var(--nn-mono); color: var(--nn-ink); }

/* Tooltip: <span data-nn-tooltip="Nội dung">…</span> */
[data-nn-tooltip] { position: relative; }
[data-nn-tooltip]::after {
    content: attr(data-nn-tooltip); position: absolute; left: 50%; bottom: calc(100% + 8px); z-index: var(--nn-z-toast);
    padding: var(--nn-space-1-5) var(--nn-space-2-5); border-radius: var(--nn-radius-sm); white-space: nowrap;
    font-size: var(--nn-text-xs); font-weight: var(--nn-weight-medium); color: #fff; background: var(--nn-ink);
    opacity: 0; transform: translate(-50%, 4px); pointer-events: none; transition: opacity var(--nn-duration-fast), transform var(--nn-duration-fast);
}
[data-nn-tooltip]:hover::after, [data-nn-tooltip]:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }

/* Tabs: xem data-nn-tabs trong theme.js */
.nn-tabs__list { display: inline-flex; gap: var(--nn-space-1); padding: var(--nn-space-1); border-radius: var(--nn-radius-pill); background: var(--nn-surface-2); }
.nn-tabs__tab { padding: var(--nn-space-2) var(--nn-space-4); border: 0; border-radius: var(--nn-radius-pill); background: transparent; font: var(--nn-weight-semibold) var(--nn-text-sm) var(--nn-font); color: var(--nn-muted); cursor: pointer; transition: all var(--nn-duration) var(--nn-ease); }
.nn-tabs__tab:hover { color: var(--nn-ink); }
.nn-tabs__tab[aria-selected="true"] { background: #fff; color: var(--nn-primary); box-shadow: var(--nn-shadow-sm); }
.nn-tabs__tab:focus-visible { outline: none; box-shadow: var(--nn-ring); }
.nn-tabs__panel { padding-top: var(--nn-space-5); }
.nn-tabs__panel[hidden] { display: none; }

/* Accordion: <details class="nn-accordion" data-nn-accordion> */
.nn-accordion { border-radius: var(--nn-radius-lg); background: #fff; border: 1px solid var(--nn-border); transition: border-color var(--nn-duration), box-shadow var(--nn-duration); }
.nn-accordion + .nn-accordion { margin-top: var(--nn-space-3); }
.nn-accordion[open] { border-color: color-mix(in srgb, var(--nn-brand) 30%, transparent); box-shadow: var(--nn-shadow); }
.nn-accordion > summary { display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-4); padding: var(--nn-space-4) var(--nn-space-5); cursor: pointer; list-style: none; font-weight: var(--nn-weight-semibold); color: var(--nn-ink); }
.nn-accordion > summary::-webkit-details-marker { display: none; }
.nn-accordion > summary::after { content: ""; flex: none; width: 10px; height: 10px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-3px); transition: transform var(--nn-duration) var(--nn-ease); }
.nn-accordion[open] > summary::after { transform: rotate(225deg) translateY(-3px); }
.nn-accordion__body { overflow: hidden; }
.nn-accordion__body > * { margin: 0; padding: 0 var(--nn-space-5) var(--nn-space-5); color: var(--nn-muted); }

/* Stat */
.nn-stat__value { font-size: var(--nn-text-5xl); font-weight: var(--nn-weight-extrabold); letter-spacing: var(--nn-tracking-tighter); line-height: var(--nn-leading-none); color: var(--nn-ink); font-variant-numeric: tabular-nums; }
.nn-stat__label { margin-top: var(--nn-space-2); font-size: var(--nn-text-md); color: var(--nn-muted); }

@media (prefers-reduced-motion: reduce) { .nn-skeleton, .nn-spinner, .nn-btn.is-loading::after { animation-duration: 3s; } }

/* ==========================================================================
   16. Floating contact widget (.nn-fab) — partials/contact-widget, kênh trong data/contact.php
   Vị trí do theme.js đặt qua --x/--y (kéo-thả, hít mép); không có JS → góc phải dưới.
   ========================================================================== */
.nn-fab {
    --fab-size: 60px; --fab-gap: 20px;
    position: fixed; right: var(--fab-gap); bottom: var(--fab-gap); z-index: var(--nn-z-float);
    width: var(--fab-size); height: var(--fab-size);
}
html:not(.nn-js) .nn-fab { display: none; } /* cần JS để mở panel */
.nn-fab.is-placed { right: auto; bottom: auto; left: 0; top: 0; transform: translate3d(var(--x, 0), var(--y, 0), 0); }
.nn-fab.is-snapping { transition: transform .55s cubic-bezier(.3, 1.4, .5, 1); }
@media (max-width: 575.98px) { .nn-fab { --fab-size: 54px; --fab-gap: 14px; } }

/* Launcher: màu nền đổi theo kênh đang hiện (--fab-c do theme.js đặt), vòng sáng xoay, sóng lan toả,
   vệt sáng quét qua và rung nhẹ định kỳ để thu hút ánh nhìn. */
.nn-fab { --fab-c: var(--fab-cycle, var(--nn-brand)); }
.nn-fab__launcher {
    position: relative; width: 100%; height: 100%; padding: 0; border: 0; border-radius: var(--nn-radius-round);
    display: grid; place-items: center; color: #fff; font-size: 26px; cursor: pointer; touch-action: none; user-select: none; -webkit-user-select: none;
    background: var(--fab-c);
    box-shadow: 0 14px 30px -8px color-mix(in srgb, var(--fab-c) 75%, transparent), 0 0 24px -4px color-mix(in srgb, var(--fab-c) 60%, transparent);
    transition: transform var(--nn-duration) var(--nn-ease), box-shadow .6s var(--nn-ease), background-color .6s var(--nn-ease);
}
/* Vòng sáng xoay quanh nút */
.nn-fab__launcher::before {
    content: ""; position: absolute; inset: -5px; border-radius: inherit; pointer-events: none;
    background: conic-gradient(from 0deg, transparent 0 55%, color-mix(in srgb, var(--fab-c) 40%, #fff) 75%, #fff 82%, transparent 92%);
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2.5px));
            mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2.5px));
    animation: nn-fab-spin 2.6s linear infinite;
}
.nn-fab__launcher:hover { transform: scale(1.08); }
.nn-fab__launcher:focus-visible { outline: 0; box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--fab-c); }
.nn-fab.is-dragging .nn-fab__launcher { cursor: grabbing; transform: scale(1.12); box-shadow: 0 26px 50px -12px color-mix(in srgb, var(--nn-brand-900) 60%, transparent); }
.nn-fab.is-open { --fab-c: var(--nn-brand); }
.nn-fab.is-open .nn-fab__launcher::before { display: none; }

/* Lớp bóng: highlight phía trên + vệt sáng quét */
.nn-fab__core {
    position: absolute; inset: 0; border-radius: inherit; overflow: hidden; pointer-events: none;
    background: radial-gradient(circle at 30% 22%, rgba(255, 255, 255, .5), transparent 55%), linear-gradient(160deg, transparent 40%, rgba(0, 0, 0, .2));
}
.nn-fab__shine {
    position: absolute; inset: -20% auto -20% -60%; width: 45%; transform: skewX(-20deg);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .55), transparent);
    animation: nn-fab-shine 3.6s var(--nn-ease-in-out) infinite;
}

/* Sóng lan toả */
.nn-fab__ring, .nn-fab__ring::after {
    position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
    background: color-mix(in srgb, var(--fab-c) 45%, transparent); transition: background-color .6s;
    animation: nn-fab-pulse 1.8s var(--nn-ease-out) infinite;
}
.nn-fab__ring::after { content: ""; animation-delay: .9s; }
.nn-fab.is-open .nn-fab__ring, .nn-fab.is-dragging .nn-fab__ring { display: none; }

.nn-fab__cycle, .nn-fab__x { position: absolute; inset: 0; display: grid; place-items: center; transition: opacity .3s, transform .45s var(--nn-ease-out); }
.nn-fab__cycle { animation: nn-fab-wiggle 3.6s ease-in-out infinite; }
.nn-fab__cycle-item { grid-area: 1 / 1; display: grid; opacity: 0; transform: translateY(70%) scale(.5); transition: opacity .3s, transform .4s var(--nn-ease-out); filter: drop-shadow(0 2px 3px rgba(0, 0, 0, .2)); }
.nn-fab__cycle-item.is-active, .nn-fab__cycle-item:only-child { opacity: 1; transform: none; }
.nn-fab__cycle-item.is-leaving { opacity: 0; transform: translateY(-70%) scale(.5); }
.nn-fab__x { opacity: 0; transform: rotate(-90deg) scale(.5); }
.nn-fab.is-open .nn-fab__cycle { opacity: 0; transform: rotate(90deg) scale(.5); animation: none; }
.nn-fab.is-open .nn-fab__x { opacity: 1; transform: none; }

.nn-fab__badge {
    position: absolute; top: 2px; right: 2px; width: 14px; height: 14px; border-radius: var(--nn-radius-round);
    background: var(--nn-success-400); border: 2.5px solid #fff; transition: transform .25s;
}
.nn-fab__badge::after {
    content: ""; position: absolute; inset: -2.5px; border-radius: inherit; background: var(--nn-success-400);
    animation: nn-fab-ping 1.6s var(--nn-ease-out) infinite;
}
.nn-fab.is-open .nn-fab__badge { transform: scale(0); }

@keyframes nn-fab-spin { to { transform: rotate(1turn); } }
@keyframes nn-fab-pulse { from { transform: scale(1); opacity: .85; } to { transform: scale(1.85); opacity: 0; } }
@keyframes nn-fab-ping { from { transform: scale(1); opacity: .8; } 75%, to { transform: scale(2.2); opacity: 0; } }
@keyframes nn-fab-shine { 0%, 55% { left: -60%; } 85%, 100% { left: 130%; } }
@keyframes nn-fab-wiggle {
    0%, 62%, 100% { transform: none; }
    66% { transform: rotate(-16deg) scale(1.1); } 70% { transform: rotate(14deg) scale(1.1); }
    74% { transform: rotate(-10deg) scale(1.08); } 78% { transform: rotate(6deg); } 82% { transform: none; }
}

/* Panel */
.nn-fab__panel {
    --origin-x: right; --origin-y: bottom;
    position: absolute; right: 0; bottom: calc(100% + var(--nn-space-3));
    width: min(340px, calc(100vw - 2 * var(--fab-gap)));
    max-height: min(560px, var(--panel-max, calc(100vh - var(--fab-size) - 3 * var(--fab-gap)))); overflow: auto; overscroll-behavior: contain;
    background: var(--nn-surface); color: var(--nn-text); border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl);
    box-shadow: 0 30px 70px -20px color-mix(in srgb, var(--nn-brand-900) 45%, transparent), var(--nn-shadow-sm);
    transform-origin: var(--origin-x) var(--origin-y);
    opacity: 0; transform: translateY(10px) scale(.92); visibility: hidden;
    transition: opacity .22s var(--nn-ease), transform .35s var(--nn-ease-out), visibility 0s linear .35s;
}
.nn-fab.is-open .nn-fab__panel { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
.nn-fab.is-left .nn-fab__panel { right: auto; left: 0; --origin-x: left; }
.nn-fab.is-below .nn-fab__panel { bottom: auto; top: calc(100% + var(--nn-space-3)); --origin-y: top; }
.nn-fab.is-below:not(.is-open) .nn-fab__panel { transform: translateY(-10px) scale(.92); }
.nn-fab.is-side .nn-fab__panel { bottom: auto; top: var(--panel-top, 0); right: calc(100% + var(--nn-space-3)); --origin-y: center; }
.nn-fab.is-side.is-left .nn-fab__panel { right: auto; left: calc(100% + var(--nn-space-3)); }
.nn-fab.is-side:not(.is-open) .nn-fab__panel { transform: translateX(10px) scale(.92); }
.nn-fab.is-side.is-left:not(.is-open) .nn-fab__panel { transform: translateX(-10px) scale(.92); }

.nn-fab__head {
    position: sticky; top: 0; z-index: 1; display: flex; align-items: center; gap: var(--nn-space-3);
    padding: var(--nn-space-4) var(--nn-space-3) var(--nn-space-4) var(--nn-space-4); color: #fff;
    background: radial-gradient(120% 140% at 0% 0%, color-mix(in srgb, var(--nn-glow) 45%, transparent), transparent 60%), var(--nn-bg-brand);
}
.nn-fab__avatar {
    position: relative; flex: none; width: 44px; height: 44px; border-radius: var(--nn-radius-round); display: grid; place-items: center;
    background: #fff; box-shadow: 0 0 0 3px rgba(255, 255, 255, .18);
}
.nn-fab__avatar::after {
    content: ""; position: absolute; right: 0; bottom: 1px; width: 12px; height: 12px; border-radius: var(--nn-radius-round);
    background: var(--nn-success-400); border: 2px solid var(--nn-deep);
}
.nn-fab__heading { min-width: 0; flex: 1; line-height: var(--nn-leading-snug); }
.nn-fab__heading strong { display: block; font-size: var(--nn-text-md); font-weight: var(--nn-weight-bold); }
.nn-fab__status { display: block; font-size: var(--nn-text-xs); color: var(--nn-on-brand-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nn-fab__tools { display: flex; align-self: flex-start; gap: 2px; }
.nn-fab__tool {
    width: 30px; height: 30px; border: 0; border-radius: var(--nn-radius-sm); display: grid; place-items: center; cursor: pointer;
    background: transparent; color: rgba(255, 255, 255, .75); font-size: 17px; transition: background .2s, color .2s;
}
.nn-fab__tool:hover, .nn-fab__tool:focus-visible { background: rgba(255, 255, 255, .14); color: #fff; outline: 0; }

.nn-fab__list { list-style: none; margin: 0; padding: var(--nn-space-2); display: grid; gap: 2px; }
.nn-fab__list > li { opacity: 0; transform: translateY(8px); transition: opacity .3s, transform .4s var(--nn-ease-out); }
.nn-fab.is-open .nn-fab__list > li { opacity: 1; transform: none; transition-delay: calc(60ms + var(--i) * 40ms); }
.nn-fab__item {
    --c: var(--nn-brand);
    display: flex; align-items: center; gap: var(--nn-space-3); padding: var(--nn-space-2-5) var(--nn-space-3);
    border-radius: var(--nn-radius-md); color: var(--nn-text); text-decoration: none; transition: background .2s;
}
.nn-fab__item:hover, .nn-fab__item:focus-visible { background: color-mix(in srgb, var(--c) 8%, transparent); color: var(--nn-text); text-decoration: none; outline: 0; }
.nn-fab__item:focus-visible { box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--c) 50%, transparent); }
.nn-fab__icon {
    flex: none; width: 42px; height: 42px; border-radius: var(--nn-radius-md); display: grid; place-items: center; font-size: 21px;
    color: #fff; background: linear-gradient(145deg, color-mix(in srgb, var(--c) 78%, #fff), var(--c));
    box-shadow: 0 8px 16px -8px var(--c); transition: transform .35s var(--nn-ease-out);
}
.nn-fab__item:hover .nn-fab__icon { transform: scale(1.08) rotate(-6deg); }
.nn-fab__text { min-width: 0; flex: 1; line-height: var(--nn-leading-snug); }
.nn-fab__text strong { display: block; font-size: var(--nn-text-sm); font-weight: var(--nn-weight-semibold); }
.nn-fab__text small { display: block; font-size: var(--nn-text-xs); color: var(--nn-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nn-fab__go { flex: none; font-size: 16px; color: var(--nn-subtle); transition: transform .25s var(--nn-ease), color .2s; }
.nn-fab__item:hover .nn-fab__go { color: var(--c); transform: translateX(3px); }
.nn-fab__item:hover .nn-fab__go[icon$="arrow-up-right"] { transform: translate(2px, -2px); }

.nn-fab__foot {
    display: flex; flex-wrap: wrap; align-items: center; gap: var(--nn-space-1-5) var(--nn-space-2); padding: var(--nn-space-3) var(--nn-space-4);
    border-top: 1px solid var(--nn-line); font-size: var(--nn-text-xs); color: var(--nn-muted);
}

/* Lời chào */
.nn-fab__bubble {
    position: absolute; right: calc(100% + var(--nn-space-3)); top: 50%; display: flex; align-items: flex-start;
    width: max-content; max-width: min(260px, calc(100vw - var(--fab-size) - 3 * var(--fab-gap)));
    background: var(--nn-surface); border: 1px solid var(--nn-border); border-radius: var(--nn-radius-lg); box-shadow: var(--nn-shadow-lg);
    transform: translateY(-50%); animation: nn-fab-bubble .6s var(--nn-ease-out) both;
}
.nn-fab__bubble[hidden], .nn-fab.is-open .nn-fab__bubble, .nn-fab.is-dragging .nn-fab__bubble { display: none; }
.nn-fab.is-left .nn-fab__bubble { right: auto; left: calc(100% + var(--nn-space-3)); }
.nn-fab__bubble-text {
    border: 0; background: none; text-align: left; cursor: pointer; padding: var(--nn-space-3) 0 var(--nn-space-3) var(--nn-space-3-5);
    font-size: var(--nn-text-sm); line-height: var(--nn-leading-snug); color: var(--nn-text);
}
.nn-fab__bubble-close {
    flex: none; width: 28px; height: 28px; margin: var(--nn-space-1); border: 0; border-radius: var(--nn-radius-sm);
    display: grid; place-items: center; background: none; color: var(--nn-subtle); cursor: pointer; font-size: 15px;
}
.nn-fab__bubble-close:hover { background: var(--nn-surface-2); color: var(--nn-text); }
@keyframes nn-fab-bubble { from { opacity: 0; transform: translateY(-50%) scale(.85); } }

/* Thu gọn: launcher ẩn, chỉ còn tab nhỏ sát mép */
.nn-fab__tab {
    position: absolute; top: 50%; right: calc(-1 * var(--fab-gap)); display: flex; align-items: center; gap: var(--nn-space-1-5);
    padding: var(--nn-space-2-5) var(--nn-space-3); border: 0; border-radius: var(--nn-radius-md) 0 0 var(--nn-radius-md);
    background: var(--nn-brand); color: #fff; font-size: var(--nn-text-xs); font-weight: var(--nn-weight-semibold); cursor: pointer;
    box-shadow: var(--nn-shadow-lg); transform: translateY(-50%); transition: padding .25s var(--nn-ease);
}
.nn-fab__tab .nn-icon { font-size: 18px; }
.nn-fab__tab span { max-width: 0; overflow: hidden; white-space: nowrap; transition: max-width .3s var(--nn-ease); }
.nn-fab__tab:hover span, .nn-fab__tab:focus-visible span { max-width: 120px; }
.nn-fab.is-left .nn-fab__tab { right: auto; left: calc(-1 * var(--fab-gap)); flex-direction: row-reverse; border-radius: 0 var(--nn-radius-md) var(--nn-radius-md) 0; }
.nn-fab.is-minimized .nn-fab__launcher, .nn-fab.is-minimized .nn-fab__bubble, .nn-fab.is-minimized .nn-fab__panel { display: none; }
.nn-fab__tab[hidden] { display: none; }

/* Nút lên đầu trang: theme.js xếp nó ngay trên nút liên hệ (thẳng hàng tâm) khi hai nút cùng góc (--tt-right/--tt-bottom) */

@media (prefers-reduced-motion: reduce) {
    .nn-fab__ring, .nn-fab__shine, .nn-fab__badge::after { display: none; }
    .nn-fab__launcher::before, .nn-fab__cycle { animation: none; }
    .nn-fab.is-snapping { transition: none; }
}
@media print { .nn-fab { display: none; } }
/* Widget liên hệ cũ (chèn qua mã nhúng trong trang quản trị) — đã thay bằng .nn-fab */
.mb-new-fix { display: none !important; }

/* ==========================================================================
   17. Mega menu (.nn-mega) — menu/mega-menu + menu/_mega-panel, nội dung data/megamenu.php
   Panel rộng theo container, canh giữa dưới header; mở bằng hover / focus (CSS) hoặc click khi cảm ứng (.is-open).
   ========================================================================== */
.nn-nav__item--mega { position: static; }
.nn-nav__item--mega > .nn-nav__link { position: relative; }
/* Cầu nối vô hình từ link xuống panel để rê chuột không bị đóng giữa chừng */
.nn-nav__item--mega > .nn-nav__link::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 20px; }

.nn-mega {
    /* Mốc top theo --nn-nav-gap (chung với dropdown thường, âm = chồng lên header); mở bằng scaleY từ mép trên nên khe không đổi khi chạy hiệu ứng */
    position: absolute; top: calc(100% + var(--nn-nav-gap, 2px)); left: 50%; z-index: 1;
    width: min(calc(560px + var(--cols, 2) * 220px), calc(100vw - 2 * var(--nn-gutter, 16px)));
    background: #fff; border: 1px solid var(--nn-border); border-radius: var(--nn-radius-xl); overflow: hidden;
    box-shadow: 0 40px 80px -30px color-mix(in srgb, var(--nn-brand-900) 35%, transparent), 0 8px 16px -12px color-mix(in srgb, var(--nn-brand-900) 18%, transparent);
    opacity: 0; visibility: hidden; transform: translate(-50%, 0) scaleY(.96); transform-origin: 50% 0;
    transition: opacity .2s var(--nn-ease), transform .3s var(--nn-ease-out), visibility 0s linear .2s;
    transition-delay: .12s; /* đóng trễ nhẹ: rê chuột chéo không bị mất panel */
}
.nn-mega__inner { display: grid; grid-template-columns: 1fr; }
.nn-mega__inner.has-feature { grid-template-columns: minmax(0, 1fr) 320px; }
.nn-mega__cols { display: grid; grid-template-columns: repeat(var(--cols, 2), minmax(0, 1fr)); gap: var(--nn-space-2) var(--nn-space-6); padding: var(--nn-space-7); }
.nn-mega__col + .nn-mega__col { position: relative; }
.nn-mega__title {
    margin: 0 0 var(--nn-space-2); padding-left: var(--nn-space-3);
    font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-bold); letter-spacing: var(--nn-tracking-wider); text-transform: uppercase; color: var(--nn-subtle);
}
.nn-mega__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.nn-mega__list > li { opacity: 0; transform: translateY(8px); transition: opacity .25s, transform .35s var(--nn-ease-out); }
.nn-mega__link {
    display: flex; align-items: center; gap: var(--nn-space-3-5); padding: var(--nn-space-3); border-radius: var(--nn-radius-md);
    color: var(--nn-text); text-decoration: none; transition: background-color .2s var(--nn-ease);
}
.nn-mega__link:hover, .nn-mega__link:focus-visible { background: var(--nn-brand-50); color: var(--nn-text); text-decoration: none; outline: 0; }
.nn-mega__link:focus-visible { box-shadow: inset 0 0 0 2px var(--nn-brand-300); }
.nn-mega__icon {
    flex: none; width: 42px; height: 42px; border-radius: var(--nn-radius-md); display: grid; place-items: center; font-size: 20px;
    color: var(--nn-primary); background: var(--nn-brand-50); border: 1px solid var(--nn-brand-100);
    transition: background-color .25s, color .25s, border-color .25s, transform .35s var(--nn-ease-out), box-shadow .25s;
}
.nn-mega__link:hover .nn-mega__icon, .nn-mega__link:focus-visible .nn-mega__icon {
    color: #fff; background: var(--nn-gradient); border-color: transparent; transform: scale(1.06) rotate(-4deg);
    box-shadow: 0 10px 18px -10px var(--nn-brand);
}
.nn-mega__text { min-width: 0; flex: 1; display: grid; gap: 2px; line-height: var(--nn-leading-snug); }
.nn-mega__label { display: flex; flex-wrap: wrap; align-items: center; gap: var(--nn-space-1) var(--nn-space-2); font-size: var(--nn-text-md); font-weight: var(--nn-weight-semibold); color: var(--nn-ink); transition: color .2s; }
.nn-mega__link:hover .nn-mega__label { color: var(--nn-primary); }
.nn-mega__desc { font-size: var(--nn-text-sm); color: var(--nn-muted); }
.nn-mega__badge {
    padding: 2px var(--nn-space-2); border-radius: var(--nn-radius-pill); font-size: var(--nn-text-3xs); font-weight: var(--nn-weight-bold);
    letter-spacing: var(--nn-tracking-wide); text-transform: uppercase; color: var(--nn-accent-600); background: var(--nn-accent-50);
}
.nn-mega__meta {
    padding: 2px var(--nn-space-2); border-radius: var(--nn-radius-pill);
    font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-semibold); color: var(--nn-success-700); background: var(--nn-success-soft); white-space: nowrap;
}

/* Khối nổi bật */
.nn-mega__feature {
    position: relative; isolation: isolate; display: flex; flex-direction: column; align-items: flex-start; gap: var(--nn-space-3);
    padding: var(--nn-space-7); color: var(--nn-on-brand-muted); overflow: hidden;
    background: var(--nn-bg-brand);
}
.nn-mega__feature::before {
    content: ""; position: absolute; z-index: -1; width: 260px; height: 260px; right: -90px; top: -90px; border-radius: var(--nn-radius-round);
    background: radial-gradient(circle, color-mix(in srgb, var(--nn-glow) 70%, transparent), transparent 70%); filter: blur(10px);
    animation: nn-mega-float 8s ease-in-out infinite alternate;
}
.nn-mega__feature::after {
    content: ""; position: absolute; z-index: -1; inset: 0; opacity: .5;
    background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 28px 28px; -webkit-mask-image: linear-gradient(200deg, #000, transparent 70%); mask-image: linear-gradient(200deg, #000, transparent 70%);
}
.nn-mega__feature--accent { background: linear-gradient(160deg, var(--nn-accent-600), var(--nn-deep)); }
.nn-mega__feature--accent::before { background: radial-gradient(circle, color-mix(in srgb, var(--nn-accent-300) 80%, transparent), transparent 70%); }
.nn-mega__eyebrow {
    display: inline-flex; padding: 4px var(--nn-space-2-5); border-radius: var(--nn-radius-pill); font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-bold);
    letter-spacing: var(--nn-tracking-wide); text-transform: uppercase; color: #fff; background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .2);
}
.nn-mega__feature-title { margin: 0; font-size: var(--nn-text-xl); font-weight: var(--nn-weight-bold); line-height: var(--nn-leading-tight); color: #fff; letter-spacing: var(--nn-tracking-tight); }
.nn-mega__feature-text { margin: 0; font-size: var(--nn-text-sm); line-height: var(--nn-leading-normal); }
.nn-mega__stats { display: flex; gap: var(--nn-space-6); margin: var(--nn-space-1) 0 var(--nn-space-2); }
.nn-mega__stats dt { font-size: var(--nn-text-2xl); font-weight: var(--nn-weight-extrabold); color: #fff; line-height: var(--nn-leading-none); letter-spacing: var(--nn-tracking-tight); }
.nn-mega__stats dd { margin: var(--nn-space-1) 0 0; font-size: var(--nn-text-xs); }
.nn-mega__feature .nn-btn { margin-top: auto; }
.nn-mega__search {
    display: flex; width: 100%; margin-top: var(--nn-space-1); padding: 4px; border-radius: var(--nn-radius-md);
    background: #fff; box-shadow: 0 12px 28px -14px rgba(0, 0, 0, .5);
}
.nn-mega__search:focus-within { box-shadow: 0 0 0 3px color-mix(in srgb, var(--nn-glow) 55%, transparent); }
.nn-mega__search input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 0 var(--nn-space-3); font: inherit; font-size: var(--nn-text-sm); color: var(--nn-ink); background: none; }
.nn-mega__search button {
    flex: none; display: inline-flex; align-items: center; gap: var(--nn-space-1-5); padding: var(--nn-space-2) var(--nn-space-3-5); border: 0; cursor: pointer;
    border-radius: var(--nn-radius-sm); font: inherit; font-size: var(--nn-text-sm); font-weight: var(--nn-weight-semibold); color: #fff; background: var(--nn-gradient);
}
.nn-mega__search button:hover { filter: brightness(1.08); }
.nn-mega__chips { display: flex; flex-wrap: wrap; gap: var(--nn-space-2); margin: var(--nn-space-1) 0 0; padding: 0; list-style: none; }
.nn-mega__chips li {
    padding: 4px var(--nn-space-2-5); border-radius: var(--nn-radius-pill); font-size: var(--nn-text-xs);
    background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16);
}
.nn-mega__chips strong { color: #fff; }

/* Thanh dưới */
.nn-mega__foot {
    display: flex; align-items: center; justify-content: space-between; gap: var(--nn-space-4); flex-wrap: wrap;
    padding: var(--nn-space-4) var(--nn-space-7); background: var(--nn-surface); border-top: 1px solid var(--nn-line);
}
.nn-mega__foot p { display: flex; align-items: center; gap: var(--nn-space-2); margin: 0; font-size: var(--nn-text-sm); color: var(--nn-muted); }
.nn-mega__foot p .nn-icon { color: var(--nn-accent); font-size: 18px; }
.nn-mega__foot-links { display: flex; gap: var(--nn-space-6); }
.nn-mega__foot-links .nn-link-arrow { font-size: var(--nn-text-sm); }

@media (min-width: 1100px) {
    .nn-nav__item--mega:is(:hover, :focus-within, .is-open):not(.is-closed) > .nn-mega {
        opacity: 1; visibility: visible; transform: translate(-50%, 0); transition-delay: .06s, .06s, 0s;
    }
    .nn-nav__item--mega:is(:hover, :focus-within, .is-open):not(.is-closed) .nn-mega__list > li {
        opacity: 1; transform: none; transition-delay: calc(.08s + var(--i) * 30ms);
    }
    .nn-nav__item--mega:is(:hover, :focus-within, .is-open):not(.is-closed) > .nn-nav__link { color: var(--nn-primary); background: var(--nn-surface); }
    .nn-nav__item--mega:is(:hover, :focus-within, .is-open):not(.is-closed) > .nn-nav__link .nn-icon { transform: rotate(180deg); }
}
@media (max-width: 1279.98px) {
    .nn-mega__inner.has-feature { grid-template-columns: minmax(0, 1fr) 270px; }
    .nn-mega__cols, .nn-mega__feature { padding: var(--nn-space-6); }
    .nn-mega__desc { display: none; }
}
@keyframes nn-mega-float { to { transform: translate(-40px, 30px) scale(1.15); } }

/* Mobile: mục của mega menu trong menu trượt */
.nn-mnav__mega { padding: 0 0 var(--nn-space-3); }
.nn-mnav__caption { margin: var(--nn-space-2) 0 var(--nn-space-1); font-size: var(--nn-text-2xs); font-weight: var(--nn-weight-bold); letter-spacing: var(--nn-tracking-wider); text-transform: uppercase; color: var(--nn-subtle); }
.nn-mnav__mega-link { display: flex; align-items: center; gap: var(--nn-space-3); padding: var(--nn-space-2) 0; color: var(--nn-text); font-size: var(--nn-text-md); }
.nn-mnav__mega-link small { margin-left: var(--nn-space-1); color: var(--nn-success-700); font-weight: var(--nn-weight-semibold); }
.nn-mnav__mega-icon { flex: none; width: 34px; height: 34px; border-radius: var(--nn-radius-sm); display: grid; place-items: center; font-size: 17px; color: var(--nn-primary); background: var(--nn-brand-50); }

@media (prefers-reduced-motion: reduce) {
    .nn-mega, .nn-mega__list > li { transition-duration: 0s; }
    .nn-mega__feature::before { animation: none; }
}

/* ==========================================================================
   18. Thẻ kênh liên hệ (.nn-contact-cards) — partials/contact-cards, danh sách trong data/contact.php → cards
   ========================================================================== */
.nn-contact-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--nn-space-3); margin: 0; padding: 0; list-style: none; }
.nn-contact-card {
    --c: var(--nn-brand);
    display: flex; align-items: center; gap: var(--nn-space-3); height: 100%; padding: var(--nn-space-3-5);
    border-radius: var(--nn-radius-lg); background: #fff; border: 1px solid var(--nn-border); color: var(--nn-ink); text-decoration: none;
    transition: border-color .25s, box-shadow .3s, transform .3s var(--nn-ease-out);
}
.nn-contact-card:hover, .nn-contact-card:focus-visible {
    color: var(--nn-ink); text-decoration: none; transform: translateY(-3px); outline: 0;
    border-color: color-mix(in srgb, var(--c) 40%, transparent); box-shadow: 0 18px 34px -24px var(--c);
}
.nn-contact-card__icon {
    flex: none; width: 44px; height: 44px; border-radius: var(--nn-radius-md); display: grid; place-items: center; font-size: 21px;
    color: #fff; background: linear-gradient(145deg, color-mix(in srgb, var(--c) 75%, #fff), var(--c)); box-shadow: 0 10px 18px -10px var(--c);
    transition: transform .35s var(--nn-ease-out);
}
.nn-contact-card:hover .nn-contact-card__icon { transform: scale(1.08) rotate(-6deg); }
.nn-contact-card__text { min-width: 0; display: grid; line-height: var(--nn-leading-snug); }
.nn-contact-card__text small { color: var(--nn-muted); font-size: var(--nn-text-xs); }
.nn-contact-card__text strong { font-size: var(--nn-text-md); font-weight: var(--nn-weight-bold); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 575.98px) { .nn-contact-cards { grid-template-columns: 1fr; } }