/*
Theme Name: Láng Thượng
Theme URI: https://tieuhoclangthuong.com
Author: Thiết kế riêng cho Trường Tiểu học Láng Thượng
Description: Giao diện chính thức của Trường Tiểu học Láng Thượng — Số 1 ngõ 185 phố Chùa Láng, Đống Đa, Hà Nội. Thiết kế mobile-first, font Baloo 2 + Nunito, tông xanh biển - vàng.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: langthuong
Tags: education, school, one-column, two-columns, right-sidebar, custom-logo, custom-header, featured-images, translation-ready
*/

/* ==========================================================================
   1. Biến & nền tảng
   ========================================================================== */

:root {
  --lt-navy: #0b3f74;
  --lt-navy-deep: #082e57;
  --lt-blue: #0f5aa8;
  --lt-yellow: #ffd166;
  --lt-yellow-soft: #ffdd8c;
  --lt-orange: #d94f14;
  --lt-bg: #fdf9f1;
  --lt-card: #ffffff;
  --lt-border: #ece2d2;
  --lt-border-soft: #f0e8db;
  --lt-border-input: #e0d5c3;
  --lt-text: #22303f;
  --lt-heading: #132c44;
  --lt-body: #4a5a6b;
  --lt-muted: #8b7c66;
  --lt-muted-cool: #6b7b8c;
  --lt-tint: #eef5fd;
  --lt-shadow: 0 6px 18px rgba(11, 63, 116, .05);
  --lt-shadow-header: 0 2px 14px rgba(11, 63, 116, .06);
  --lt-container: 1200px;
  --lt-gutter: 24px;
  --lt-font-head: 'Baloo 2', system-ui, sans-serif;
  --lt-font-body: Nunito, system-ui, -apple-system, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--lt-bg);
  font-family: var(--lt-font-body);
  color: var(--lt-text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--lt-blue); text-decoration: none; }
a:hover, a:focus { color: var(--lt-orange); }

img { max-width: 100%; height: auto; }

h1, h2, h3, h4, h5, h6 { font-family: var(--lt-font-head); }

:focus-visible { outline: 3px solid var(--lt-blue); outline-offset: 2px; border-radius: 6px; }

.lt-container {
  max-width: var(--lt-container);
  margin: 0 auto;
  padding-left: var(--lt-gutter);
  padding-right: var(--lt-gutter);
}

.lt-skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--lt-navy); color: #fff; padding: 12px 18px;
  border-radius: 0 0 12px 0; font-weight: 800;
}
.lt-skip-link:focus { left: 0; color: #fff; }

.screen-reader-text {
  border: 0; clip: rect(1px, 1px, 1px, 1px); clip-path: inset(50%);
  height: 1px; width: 1px; margin: -1px; overflow: hidden;
  padding: 0; position: absolute; word-wrap: normal !important;
}

/* Ô ảnh trống — thay cho <image-slot> trong bản thiết kế */
.lt-ph {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #dbe8f6, #f3ece0);
  display: grid; place-items: center;
  color: #9db3ca; font-family: var(--lt-font-head); font-weight: 800;
  font-size: 15px; letter-spacing: 1px; text-align: center; padding: 10px;
}
/* .lt-media có thể là <a> hoặc <div> → phải ép display:block để nhận chiều cao */
.lt-media { display: block; position: relative; overflow: hidden; background: #eef2f7; }
.lt-media > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.lt-media--contain > img { object-fit: contain; background: #fff; }

/* ==========================================================================
   2. Thanh trên cùng + Header
   ========================================================================== */

.lt-topbar {
  background: var(--lt-navy);
  color: #cfe3f7;
  font-size: 13.5px;
  padding: 8px 0;
}
.lt-topbar .lt-container {
  display: flex; flex-wrap: wrap; gap: 12px 20px;
  align-items: center; justify-content: space-between;
}
.lt-topbar__info { display: flex; gap: 10px 22px; flex-wrap: wrap; align-items: center; }
.lt-topbar__sep { opacity: .5; }
.lt-topbar__links { display: flex; gap: 18px; align-items: center; }
.lt-topbar a { color: #cfe3f7; }
.lt-topbar a.is-accent { color: var(--lt-yellow); }
.lt-topbar a:hover { color: #fff; }

.lt-header {
  position: sticky; top: 0; z-index: 40;
  background: #fff;
  border-bottom: 1px solid #e7ded0;
  box-shadow: var(--lt-shadow-header);
}
.lt-header .lt-container {
  padding-top: 14px; padding-bottom: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.lt-brand { display: flex; align-items: center; gap: 14px; }
.lt-brand img { width: 60px; height: 60px; object-fit: contain; border-radius: 10px; background: #fff; flex: none; }
/* Logo là ảnh ngang (banner) → ô rộng hơn để còn đọc được */
.lt-brand--wide img { width: auto; max-width: 168px; height: 54px; border-radius: 8px; }
.lt-footer__brand--wide img { width: auto; max-width: 132px; height: 44px; }

.lt-brand__text { display: flex; flex-direction: column; gap: 2px; }
.lt-brand__eyebrow {
  font-size: 11.5px; font-weight: 700; letter-spacing: 1.6px;
  text-transform: uppercase; color: var(--lt-muted);
}
.lt-brand__name {
  font-family: var(--lt-font-head); font-weight: 700; font-size: 22px;
  line-height: 1.1; color: var(--lt-navy);
}

.lt-nav { display: flex; align-items: center; gap: 26px; font-weight: 700; font-size: 15px; }
.lt-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 26px; }
.lt-nav li { position: relative; }
.lt-nav a { color: var(--lt-text); display: block; padding: 4px 0; }
.lt-nav a:hover { color: var(--lt-orange); }
.lt-nav .current-menu-item > a,
.lt-nav .current-menu-parent > a,
.lt-nav .current-post-ancestor > a { color: var(--lt-orange); }

/* Menu con */
.lt-nav ul ul {
  position: absolute; top: 100%; left: -14px; z-index: 50;
  display: block; min-width: 240px; padding: 10px 0;
  background: #fff; border: 1px solid var(--lt-border); border-radius: 14px;
  box-shadow: 0 12px 28px rgba(11, 63, 116, .12);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.lt-nav li:hover > ul, .lt-nav li:focus-within > ul { opacity: 1; visibility: visible; transform: translateY(0); }
.lt-nav ul ul li { width: 100%; }
.lt-nav ul ul a { padding: 9px 18px; font-size: 14.5px; }
.lt-nav ul ul a:hover { background: var(--lt-tint); }

.lt-cta {
  background: var(--lt-orange); color: #fff !important;
  padding: 10px 18px; border-radius: 999px;
  box-shadow: 0 4px 12px rgba(217, 79, 20, .3);
}
.lt-cta:hover { background: #b93f0e; }

/* Nút menu di động (dùng checkbox, không cần JS) */
.lt-nav-check {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); border: 0;
}
.lt-nav-check:focus-visible + .lt-nav-toggle { outline: 3px solid var(--lt-blue); outline-offset: 2px; }
.lt-nav-toggle {
  display: none; align-items: center; gap: 9px; cursor: pointer;
  font-weight: 800; font-size: 14.5px; color: var(--lt-navy);
  border: 1px solid var(--lt-border); border-radius: 12px; padding: 10px 14px;
  background: #fff; user-select: none;
}
.lt-nav-toggle__bars { display: grid; gap: 4px; }
.lt-nav-toggle__bars span { display: block; width: 20px; height: 2.5px; background: var(--lt-navy); border-radius: 2px; }

/* ==========================================================================
   3. Trang chủ
   ========================================================================== */

.lt-hero { position: relative; background: var(--lt-navy); color: #fff; overflow: hidden; }
.lt-hero__bg { position: absolute; inset: 0; }
.lt-hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.lt-hero__veil {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(100deg, rgba(7, 42, 79, .92) 0%, rgba(7, 42, 79, .72) 48%, rgba(7, 42, 79, .18) 100%);
}
.lt-hero__inner { position: relative; padding-top: 96px; padding-bottom: 108px; }
.lt-hero h1 {
  font-weight: 800; font-size: 60px; line-height: 1.08;
  margin: 22px 0 0; max-width: 16ch; text-wrap: pretty;
}
.lt-hero p { font-size: 19px; line-height: 1.65; max-width: 52ch; margin: 20px 0 0; color: #dce9f7; text-wrap: pretty; }
.lt-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.lt-badge {
  display: inline-block;
  background: rgba(255, 209, 102, .16);
  border: 1px solid rgba(255, 209, 102, .5);
  color: var(--lt-yellow);
  font-weight: 700; font-size: 13px; letter-spacing: 1.4px;
  text-transform: uppercase; padding: 7px 16px; border-radius: 999px;
}

.lt-btn {
  display: inline-block; font-weight: 800; font-size: 16px;
  padding: 15px 28px; border-radius: 12px; border: none; cursor: pointer;
  font-family: var(--lt-font-body);
}
.lt-btn--yellow { background: var(--lt-yellow); color: var(--lt-navy) !important; box-shadow: 0 8px 20px rgba(0, 0, 0, .22); }
.lt-btn--yellow:hover { background: var(--lt-yellow-soft); }
.lt-btn--ghost { border: 1.5px solid rgba(255, 255, 255, .6); color: #fff !important; font-weight: 700; }
.lt-btn--ghost:hover { background: rgba(255, 255, 255, .12); }
.lt-btn--blue { background: var(--lt-blue); color: #fff !important; }
.lt-btn--blue:hover { background: var(--lt-navy); }
.lt-btn--light { background: #fff; border: 1px solid var(--lt-border); color: #33424f !important; }
.lt-btn--light:hover { border-color: var(--lt-blue); }

.lt-marquee { background: var(--lt-yellow); overflow: hidden; padding: 11px 0; }
.lt-marquee__track {
  display: flex; width: max-content;
  animation: lt-marquee 34s linear infinite;
  font-weight: 700; font-size: 14.5px; color: #6a4a00;
}
.lt-marquee__group { display: flex; gap: 44px; padding-right: 44px; }
.lt-marquee a { color: #132c44; }
.lt-marquee a:hover { color: var(--lt-navy); }
@keyframes lt-marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .lt-marquee__track { animation: none; flex-wrap: wrap; width: auto; }
  .lt-marquee__group + .lt-marquee__group { display: none; }
}

.lt-stats { padding-top: 56px; }
.lt-stats__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; }
.lt-stat {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 16px;
  padding: 24px; box-shadow: var(--lt-shadow);
}
.lt-stat__num { font-family: var(--lt-font-head); font-size: 40px; font-weight: 800; color: var(--lt-blue); line-height: 1; }
.lt-stat__label { font-size: 14.5px; color: var(--lt-muted-cool); font-weight: 600; margin-top: 6px; }

.lt-eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 800;
  letter-spacing: 1.8px; text-transform: uppercase; color: var(--lt-orange);
}
.lt-h2 { font-family: var(--lt-font-head); font-weight: 700; font-size: 38px; margin: 10px 0 0; color: var(--lt-navy); text-wrap: pretty; }

.lt-section { padding-top: 76px; padding-bottom: 76px; }
.lt-section--plain { background: #fff; border-top: 1px solid var(--lt-border); border-bottom: 1px solid var(--lt-border); }

.lt-intro__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.lt-intro h2 { font-size: 40px; line-height: 1.15; margin: 10px 0 0; color: var(--lt-navy); font-weight: 700; text-wrap: pretty; }
.lt-intro p { font-size: 17px; line-height: 1.75; color: var(--lt-body); margin: 18px 0 0; text-wrap: pretty; }
.lt-intro__tag {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 12px;
  padding: 14px 16px; font-weight: 700; font-size: 14.5px; color: var(--lt-navy);
  margin-top: 26px; display: inline-block;
}
.lt-intro__gallery {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: 200px 150px; gap: 14px;
}
.lt-intro__gallery .lt-media { border-radius: 18px; }
.lt-intro__gallery .lt-media:first-child { grid-column: span 2; }

.lt-sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.lt-sec-head__more { font-weight: 700; font-size: 15px; }

.lt-news { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 32px; margin-top: 34px; }
.lt-news__hero { display: flex; flex-direction: column; gap: 16px; }
.lt-news__hero .lt-media { height: 320px; border-radius: 18px; }
.lt-news__hero h3 { font-weight: 700; font-size: 26px; line-height: 1.25; margin: 12px 0 0; }
.lt-news__hero h3 a { color: var(--lt-heading); }
.lt-news__hero p { font-size: 16px; line-height: 1.7; color: #5a6b7c; margin: 10px 0 0; text-wrap: pretty; }
.lt-news__list { display: flex; flex-direction: column; gap: 18px; }
.lt-news__item { display: flex; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--lt-border-soft); }
.lt-news__item:last-child { border-bottom: none; padding-bottom: 0; }
.lt-news__item .lt-media { width: 118px; height: 92px; flex: none; border-radius: 12px; }
.lt-news__item h4 { font-weight: 700; font-size: 18.5px; line-height: 1.3; margin: 6px 0 0; text-wrap: pretty; }
.lt-news__item h4 a { color: var(--lt-heading); }

.lt-meta { display: flex; gap: 12px; align-items: center; font-size: 13px; font-weight: 700; color: var(--lt-muted); flex-wrap: wrap; }
.lt-meta--sm { font-size: 12.5px; }
.lt-chip { background: var(--lt-tint); color: var(--lt-blue) !important; padding: 5px 11px; border-radius: 999px; }

.lt-cat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 32px; }
.lt-cat-card {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 18px;
  overflow: hidden; box-shadow: var(--lt-shadow);
}
.lt-cat-card .lt-media { height: 170px; }
.lt-cat-card__body { padding: 20px; }
.lt-cat-card h3 { font-weight: 700; font-size: 21px; margin: 0; }
.lt-cat-card h3 a { color: var(--lt-heading); }
.lt-cat-card__count { font-size: 13.5px; font-weight: 800; color: var(--lt-orange); margin-top: 10px; }

.lt-admission { background: linear-gradient(135deg, var(--lt-navy), var(--lt-blue)); color: #fff; }
.lt-admission__grid {
  padding-top: 72px; padding-bottom: 72px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 52px; align-items: center;
}
.lt-admission h2 { font-weight: 700; font-size: 38px; line-height: 1.15; margin: 16px 0 0; color: #fff; text-wrap: pretty; }
.lt-admission p { font-size: 17px; line-height: 1.7; color: #d7e6f5; margin: 14px 0 0; text-wrap: pretty; }
.lt-admission__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.lt-admission__actions .lt-btn { padding: 14px 26px; }
.lt-timeline {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 20px; padding: 28px; display: flex; flex-direction: column; gap: 18px;
}
.lt-timeline__row { display: flex; gap: 16px; }
.lt-timeline__num {
  width: 38px; height: 38px; flex: none; border-radius: 10px;
  background: var(--lt-yellow); color: var(--lt-navy);
  font-family: var(--lt-font-head); font-weight: 800; font-size: 19px;
  display: grid; place-items: center;
}
.lt-timeline__date { font-weight: 800; font-size: 17px; }
.lt-timeline__title { font-size: 15px; color: #d7e6f5; line-height: 1.6; }
.lt-timeline__title a { color: #d7e6f5; }
.lt-timeline__title a:hover { color: var(--lt-yellow); }

.lt-contact { background: #fff; border-top: 1px solid var(--lt-border); }
.lt-contact__grid {
  padding-top: 72px; padding-bottom: 72px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 48px;
}
.lt-contact h2 { font-weight: 700; font-size: 34px; margin: 10px 0 0; color: var(--lt-navy); }
.lt-contact__list { display: grid; gap: 12px; margin-top: 24px; }
.lt-contact__row {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--lt-bg); border: 1px solid var(--lt-border);
  border-radius: 14px; padding: 16px 18px;
}
.lt-contact__icon {
  width: 38px; height: 38px; flex: none; border-radius: 11px;
  background: var(--lt-tint); color: var(--lt-blue);
  display: grid; place-items: center; font-size: 19px;
}
.lt-contact__label {
  font-size: 12px; font-weight: 800; letter-spacing: 1.3px;
  text-transform: uppercase; color: var(--lt-muted);
}
.lt-contact__value { font-size: 16.5px; font-weight: 600; line-height: 1.55; color: #33424f; }
.lt-contact__map { min-height: 320px; border-radius: 18px; }

/* ==========================================================================
   4. Bố cục nội dung + sidebar
   ========================================================================== */

.lt-breadcrumb { background: #fff; border-bottom: 1px solid var(--lt-border); }
.lt-breadcrumb .lt-container {
  padding-top: 14px; padding-bottom: 14px;
  font-size: 14px; font-weight: 600; color: var(--lt-muted);
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.lt-breadcrumb__current { color: #3f4f60; }

.lt-layout {
  padding-top: 44px; padding-bottom: 76px;
  display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 52px; align-items: start;
}
.lt-layout--full { display: block; }

.lt-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 110px; }
.lt-widget { background: #fff; border: 1px solid var(--lt-border); border-radius: 18px; padding: 22px; }
.lt-widget__title {
  font-family: var(--lt-font-head); font-weight: 700; font-size: 19px;
  margin: 0 0 14px; color: var(--lt-navy); letter-spacing: .3px;
}
.lt-widget ul { list-style: none; margin: 0; padding: 0; }
.lt-recent { display: flex; flex-direction: column; }
.lt-recent a {
  font-size: 15px; font-weight: 700; line-height: 1.45; color: var(--lt-heading);
  padding: 11px 0; border-bottom: 1px solid var(--lt-border-soft);
}
.lt-recent li:last-child a { border-bottom: none; }
.lt-recent a:hover { color: var(--lt-blue); }
.lt-cats { font-size: 15px; font-weight: 700; }
.lt-cats a {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 9px 0; border-bottom: 1px solid var(--lt-border-soft); color: #33424f;
}
.lt-cats li:last-child a { border-bottom: none; }
.lt-cats a:hover { color: var(--lt-blue); }
.lt-cats__count { color: var(--lt-muted); font-weight: 700; }
.lt-widget--about {
  background: linear-gradient(135deg, var(--lt-navy), var(--lt-blue));
  color: #fff; border: none;  border-radius: 18px; padding: 24px;
}
.lt-widget--about .lt-widget__title { color: #fff; margin-bottom: 0; }
.lt-widget--about p { font-size: 14.5px; line-height: 1.75; color: #d7e6f5; margin: 10px 0 0; text-wrap: pretty; }
.lt-widget--about .lt-btn {
  margin-top: 16px; font-size: 14.5px; padding: 11px 20px; border-radius: 10px; box-shadow: none;
}

/* ==========================================================================
   5. Bài viết đơn
   ========================================================================== */

.lt-entry__chip {
  display: inline-block; background: var(--lt-tint); color: var(--lt-blue) !important;
  font-weight: 800; font-size: 12.5px; letter-spacing: 1.4px;
  text-transform: uppercase; padding: 7px 14px; border-radius: 999px;
}
.lt-entry__title {
  font-weight: 800; font-size: 42px; line-height: 1.18;
  margin: 16px 0 0; color: var(--lt-navy); text-wrap: pretty;
}
.lt-entry__meta {
  display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center;
  margin-top: 18px; padding-bottom: 20px; border-bottom: 1px solid var(--lt-border);
  font-size: 14.5px; font-weight: 600; color: var(--lt-muted);
}
.lt-entry__meta .lt-dot { opacity: .45; }
.lt-entry__thumb { margin: 26px 0 0; }
.lt-entry__thumb img { border-radius: 18px; display: block; }
.lt-entry__thumb figcaption { font-size: 13.5px; color: var(--lt-muted); margin-top: 10px; font-weight: 600; }

.lt-content { font-size: 18px; line-height: 1.9; color: #33424f; margin-top: 30px; }
.lt-content > * { margin-top: 0; margin-bottom: 18px; }
.lt-content > *:last-child { margin-bottom: 0; }
.lt-content p { text-wrap: pretty; }
.lt-content h2 { font-size: 30px; color: var(--lt-navy); margin-top: 34px; line-height: 1.25; }
.lt-content h3 { font-size: 24px; color: var(--lt-navy); margin-top: 28px; line-height: 1.3; }
.lt-content h4 { font-size: 20px; color: var(--lt-heading); margin-top: 24px; }
.lt-content img { border-radius: 14px; height: auto; }
.lt-content figure { margin: 0 0 18px; }
.lt-content figcaption { font-size: 13.5px; color: var(--lt-muted); font-weight: 600; margin-top: 8px; text-align: center; }
.lt-content ul, .lt-content ol { padding-left: 24px; }
.lt-content li { margin-bottom: 8px; }
.lt-content blockquote {
  margin: 0 0 18px; padding: 18px 24px; background: #fff;
  border-left: 4px solid var(--lt-yellow); border-radius: 0 14px 14px 0;
}
.lt-content table { width: 100%; border-collapse: collapse; font-size: 16px; }
.lt-content th, .lt-content td { border: 1px solid var(--lt-border); padding: 10px 12px; text-align: left; }
.lt-content th { background: var(--lt-tint); }
.lt-table-scroll { overflow-x: auto; }
.lt-content iframe, .lt-content video { max-width: 100%; border-radius: 14px; }
.lt-content .wp-caption { max-width: 100%; }

.lt-callout {
  margin-top: 30px; background: #fff; border: 1px solid var(--lt-border);
  border-radius: 18px; padding: 26px 28px;
}
.lt-callout__title { font-family: var(--lt-font-head); font-weight: 700; font-size: 20px; color: var(--lt-navy); }
.lt-callout__body {
  font-size: 16.5px; line-height: 1.8; color: var(--lt-body);
  margin-top: 8px; display: flex; flex-direction: column; gap: 4px;
}

.lt-terms { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--lt-border); }
.lt-terms__label { font-weight: 800; font-size: 14px; color: var(--lt-muted); align-self: center; margin-right: 6px; }
.lt-terms a {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 999px;
  padding: 8px 16px; font-weight: 700; font-size: 14px;
}
.lt-terms a:hover { border-color: var(--lt-blue); }

.lt-postnav { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; margin-top: 28px; }
.lt-postnav a {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 16px;
  padding: 20px; display: flex; flex-direction: column; gap: 8px;
}
.lt-postnav a:hover { border-color: var(--lt-blue); }
.lt-postnav__label { font-size: 12.5px; font-weight: 800; letter-spacing: 1.3px; text-transform: uppercase; color: var(--lt-muted); }
.lt-postnav__title { font-family: var(--lt-font-head); font-weight: 700; font-size: 18px; line-height: 1.3; color: var(--lt-heading); text-wrap: pretty; }
.lt-postnav__next { text-align: right; }

/* Bình luận */
.lt-comments { margin-top: 40px; background: #fff; border: 1px solid var(--lt-border); border-radius: 18px; padding: 28px; }
.lt-comments__title { font-family: var(--lt-font-head); font-weight: 700; font-size: 24px; margin: 0; color: var(--lt-navy); }
.lt-comments__empty { font-size: 15.5px; color: var(--lt-muted); margin: 8px 0 0; font-weight: 600; }
.lt-comments .comment-list { list-style: none; margin: 20px 0 0; padding: 0; }
.lt-comments .comment-list ul.children { list-style: none; margin: 16px 0 0 24px; padding: 0; }
.lt-comment { border-top: 1px solid var(--lt-border-soft); padding: 18px 0 0; margin-bottom: 18px; }
.lt-comment__head { display: flex; align-items: center; gap: 12px; }
.lt-comment__head img { border-radius: 999px; }
.lt-comment__author { font-weight: 800; color: var(--lt-heading); }
.lt-comment__date { font-size: 13px; color: var(--lt-muted); font-weight: 600; }
.lt-comment__body { font-size: 16px; line-height: 1.75; color: #33424f; margin-top: 8px; }
.lt-comment__body p { margin: 0 0 10px; }

.lt-comments .comment-form { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.lt-comments .comment-form p { margin: 0; }
.lt-comments .comment-form-author, .lt-comments .comment-form-email {
  display: inline-block; width: calc(50% - 6px);
}
.lt-comments .comment-form-author { margin-right: 8px !important; }
.lt-comments .comment-form label { display: block; font-weight: 700; font-size: 14px; color: var(--lt-muted); margin-bottom: 6px; }
.lt-comments .comment-notes, .lt-comments .comment-form-cookies-consent { font-size: 13.5px; color: var(--lt-muted); }
.lt-comments .comment-form-cookies-consent label { display: inline; font-weight: 600; }

input[type="text"], input[type="email"], input[type="url"], input[type="search"], input[type="tel"], textarea {
  width: 100%; font-family: var(--lt-font-body); font-size: 15.5px;
  padding: 13px 15px; border: 1px solid var(--lt-border-input);
  border-radius: 12px; background: var(--lt-bg); color: var(--lt-text);
}
textarea { resize: vertical; }
input:focus, textarea:focus { border-color: var(--lt-blue); outline: none; background: #fff; }
.lt-comments input[type="submit"], .lt-comments .submit {
  align-self: flex-start; background: var(--lt-blue); color: #fff;
  font-family: var(--lt-font-body); font-weight: 800; font-size: 15.5px;
  border: none; padding: 13px 26px; border-radius: 12px; cursor: pointer; width: auto;
}
.lt-comments input[type="submit"]:hover { background: var(--lt-navy); }

/* ==========================================================================
   6. Danh mục / tìm kiếm / 404 / video
   ========================================================================== */

.lt-arch__title { font-weight: 800; font-size: 40px; margin: 8px 0 0; color: var(--lt-navy); text-wrap: pretty; }
.lt-arch__count { font-size: 16.5px; color: var(--lt-muted-cool); font-weight: 600; margin: 8px 0 0; }
.lt-arch__desc { font-size: 16.5px; color: var(--lt-body); margin: 14px 0 0; line-height: 1.7; }

.lt-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; margin-top: 30px; }
.lt-card {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 18px;
  overflow: hidden; box-shadow: var(--lt-shadow); display: flex; flex-direction: column;
}
.lt-card .lt-media { height: 190px; }
.lt-card__body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.lt-card h3 { font-weight: 700; font-size: 20px; line-height: 1.3; margin: 0; text-wrap: pretty; }
.lt-card h3 a { color: var(--lt-heading); }
.lt-card__more { font-weight: 800; font-size: 14px; margin-top: auto; }

.lt-pagination { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; align-items: center; }
.lt-pagination .page-numbers {
  min-width: 44px; height: 44px; display: grid; place-items: center;
  padding: 0 14px; border-radius: 12px; font-weight: 800; font-size: 15px;
  background: #fff; border: 1px solid var(--lt-border); color: #33424f;
}
.lt-pagination .page-numbers:hover { border-color: var(--lt-blue); color: var(--lt-blue); }
.lt-pagination .page-numbers.current { background: var(--lt-blue); border-color: var(--lt-blue); color: #fff; }
.lt-pagination .page-numbers.dots { background: none; border: none; color: var(--lt-muted); min-width: auto; padding: 0 6px; }

.lt-searchform { display: flex; gap: 10px; margin-top: 22px; }
.lt-searchform input[type="search"] { flex: 1; font-size: 16px; padding: 14px 16px; background: #fff; }
.lt-searchform button {
  background: var(--lt-blue); color: #fff; font-family: var(--lt-font-body);
  font-weight: 800; font-size: 15.5px; border: none;
  padding: 14px 26px; border-radius: 12px; cursor: pointer; flex: none;
}
.lt-searchform button:hover { background: var(--lt-navy); }

.lt-results { display: flex; flex-direction: column; gap: 14px; margin-top: 26px; }
.lt-result {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 16px;
  padding: 18px; display: flex; gap: 18px;
}
.lt-result .lt-media { width: 150px; height: 104px; flex: none; border-radius: 12px; }
.lt-result h3 { font-weight: 700; font-size: 19px; line-height: 1.3; margin: 8px 0 0; text-wrap: pretty; }
.lt-result h3 a { color: var(--lt-heading); }
.lt-result__excerpt { font-size: 15px; color: #5a6b7c; margin: 8px 0 0; line-height: 1.6; }

.lt-empty { background: #fff; border: 1px solid var(--lt-border); border-radius: 18px; padding: 32px; margin-top: 26px; }
.lt-empty p { font-size: 16.5px; color: var(--lt-body); margin: 0 0 16px; }

.lt-404 { padding-top: 44px; padding-bottom: 76px; }
.lt-404__box {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 20px;
  padding: 56px 32px; text-align: center;
}
.lt-404__num { font-family: var(--lt-font-head); font-weight: 800; font-size: 88px; line-height: 1; color: var(--lt-navy); margin-top: 12px; }
.lt-404__box h1 { font-weight: 700; font-size: 30px; margin: 12px 0 0; color: var(--lt-heading); }
.lt-404__box p { font-size: 17px; color: #5a6b7c; margin: 10px auto 0; max-width: 52ch; text-wrap: pretty; }
.lt-404__actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.lt-404__actions .lt-btn { font-size: 15.5px; padding: 14px 26px; }
.lt-404__search { max-width: 520px; margin: 24px auto 0; }

.lt-video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; margin-top: 30px; }
.lt-video-card {
  background: #fff; border: 1px solid var(--lt-border); border-radius: 18px;
  overflow: hidden; box-shadow: var(--lt-shadow);
}
.lt-video-card__frame { position: relative; aspect-ratio: 16 / 9; background: var(--lt-navy); display: grid; place-items: center; }
.lt-video-card__frame iframe,
.lt-video-card__frame video,
.lt-video-card__frame .fb-video,
.lt-video-card__frame img { position: absolute; inset: 0; width: 100% !important; height: 100% !important; border: 0; object-fit: cover; }
.lt-video-card__link { display: block; position: absolute; inset: 0; }
.lt-video-card__play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 62px; height: 62px; border-radius: 999px;
  background: rgba(11, 63, 116, .82); border: 2px solid rgba(255, 255, 255, .85);
  color: #fff; font-size: 22px; line-height: 1;
  display: grid; place-items: center; padding-left: 4px;
}
.lt-video-card__link:hover .lt-video-card__play { background: var(--lt-orange); }
.lt-video-card__body { padding: 18px; }
.lt-video-card__title { font-family: var(--lt-font-head); font-weight: 700; font-size: 19px; color: var(--lt-heading); }
.lt-video-card__title a { color: var(--lt-heading); }
.lt-video-card__meta { font-size: 14px; font-weight: 700; color: var(--lt-muted); margin-top: 4px; }

.lt-note { font-size: 15px; color: var(--lt-muted); font-weight: 600; margin: 24px 0 0; }

/* ==========================================================================
   7. Footer
   ========================================================================== */

.lt-footer { background: var(--lt-navy-deep); color: #b9d1e8; padding: 52px 0 28px; }
.lt-footer__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 40px; }
.lt-footer__brand { display: flex; align-items: center; gap: 12px; }
.lt-footer__brand img { width: 48px; height: 48px; object-fit: contain; border-radius: 8px; background: #fff; padding: 2px; flex: none; }
.lt-footer__name { font-family: var(--lt-font-head); font-weight: 700; font-size: 19px; color: #fff; }
.lt-footer p { font-size: 14.5px; line-height: 1.7; margin: 14px 0 0; max-width: 44ch; }
.lt-footer__col { display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.lt-footer__col-title { font-weight: 800; color: #fff; margin-bottom: 4px; }
.lt-footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.lt-footer a { color: #b9d1e8; }
.lt-footer a:hover { color: var(--lt-yellow); }
.lt-footer__bottom {
  margin-top: 32px; padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 13.5px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}

/* ==========================================================================
   8. Responsive — bản thiết kế chỉ có bản desktop, phần dưới đây là bổ sung
   ========================================================================== */

@media (max-width: 1080px) {
  .lt-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; }
  .lt-hero h1 { font-size: 50px; }
  .lt-nav, .lt-nav ul { gap: 18px; }
}

@media (max-width: 960px) {
  .lt-layout { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .lt-sidebar { position: static; top: auto; }
  .lt-intro__grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .lt-news { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .lt-admission__grid, .lt-contact__grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .lt-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; }
  .lt-footer__brand-col { grid-column: span 2; }
}

/* Ngưỡng bật menu di động — đặt 1024px vì menu 6 mục tiếng Việt bị xuống dòng
   chen chúc trong khoảng 900–1024px, nhìn rối hơn là gom vào nút "Menu". */
@media (max-width: 1024px) {
  .lt-nav-toggle { display: inline-flex; }
  .lt-header .lt-container { flex-wrap: wrap; }
  .lt-nav {
    display: none; width: 100%; order: 3;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 6px 0 12px; margin-top: 8px; border-top: 1px solid var(--lt-border);
  }
  .lt-nav-check:checked ~ .lt-nav { display: flex; }
  .lt-nav ul { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .lt-nav a { padding: 13px 4px; border-bottom: 1px solid var(--lt-border-soft); }
  .lt-nav ul ul {
    position: static; opacity: 1; visibility: visible; transform: none;
    border: none; box-shadow: none; padding: 0 0 0 16px; min-width: 0; background: transparent;
  }
  .lt-nav .lt-cta { text-align: center; margin-top: 12px; border-bottom: none; }
}

@media (max-width: 780px) {
  :root { --lt-gutter: 18px; }
  .lt-topbar { font-size: 12.5px; }
  .lt-topbar__info { gap: 6px 14px; }
  .lt-brand img { width: 48px; height: 48px; }
  .lt-brand__name { font-size: 18px; }
  .lt-brand__eyebrow { font-size: 10.5px; letter-spacing: 1.2px; }
  .lt-hero__inner { padding-top: 56px; padding-bottom: 64px; }
  .lt-hero h1 { font-size: 34px; max-width: none; }
  .lt-hero p { font-size: 16.5px; }
  .lt-btn { font-size: 15px; padding: 13px 22px; width: 100%; text-align: center; }
  .lt-hero__actions, .lt-admission__actions, .lt-404__actions { width: 100%; }
  .lt-section { padding-top: 48px; padding-bottom: 48px; }
  .lt-stats { padding-top: 36px; }
  .lt-h2, .lt-intro h2, .lt-admission h2 { font-size: 27px; }
  .lt-contact h2 { font-size: 25px; }
  .lt-entry__title { font-size: 28px; }
  .lt-arch__title { font-size: 28px; }
  .lt-content { font-size: 17px; line-height: 1.85; }
  .lt-content h2 { font-size: 24px; }
  .lt-content h3 { font-size: 21px; }
  .lt-intro__gallery { grid-template-rows: 170px 120px; }
  .lt-news__hero .lt-media { height: 220px; }
  .lt-news__hero h3 { font-size: 21px; }
  .lt-news__item .lt-media { width: 92px; height: 74px; }
  .lt-news__item h4 { font-size: 16px; }
  .lt-postnav { grid-template-columns: minmax(0, 1fr); }
  .lt-postnav__next { text-align: left; }
  .lt-result { flex-direction: column; gap: 12px; }
  .lt-result .lt-media { width: 100%; height: 180px; }
  .lt-comments { padding: 20px; }
  .lt-comments .comment-form-author, .lt-comments .comment-form-email { width: 100%; margin-right: 0 !important; }
  .lt-404__num { font-size: 64px; }
  .lt-404__box { padding: 36px 20px; }
  .lt-404__box h1 { font-size: 24px; }
  .lt-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .lt-footer__brand-col { grid-column: auto; }
  .lt-footer__bottom { flex-direction: column; gap: 8px; }
  .lt-searchform { flex-direction: column; }
  .lt-searchform button { width: 100%; }
  .lt-timeline { padding: 20px; }
}

@media (max-width: 420px) {
  .lt-card-grid, .lt-video-grid { grid-template-columns: minmax(0, 1fr); }
  .lt-stats__grid { grid-template-columns: minmax(0, 1fr); }
}

/* In ấn */
@media print {
  .lt-topbar, .lt-header, .lt-footer, .lt-sidebar, .lt-postnav, .lt-comments, .lt-breadcrumb { display: none !important; }
  .lt-layout { display: block; padding: 0; }
  body { background: #fff; }
}