/* ===== Học quán Sơn Chu — giao diện công khai (Blade SSR) =====
   Palette: trắng ngà · xanh mặc ngọc · vàng đồng · nâu trầm. Font: Be Vietnam Pro.
   Phong cách: trang trọng, học thuật, Á Đông, hiện đại — ưu tiên đọc nội dung dài. */
:root {
  --ivory: #faf7f0;        /* trắng ngà nền */
  --ivory-2: #f3eee2;      /* nền khối phụ */
  --paper: #fffdf8;        /* nền thẻ */
  --jade: #007a37;         /* lục ngọc theo logo Sơn Chu (chủ đạo) */
  --jade-d: #005f2a;       /* lục ngọc đậm */
  --jade-soft: #e2f0e8;    /* lục ngọc nhạt */
  --bronze: #a9762e;       /* vàng đồng */
  --bronze-d: #8a5f22;
  --brown: #3a2f28;        /* nâu trầm (chữ) */
  --brown-2: #6a5b50;      /* chữ phụ */
  --line: #e4dccb;         /* viền */
  --shadow: 0 1px 2px rgba(58,47,40,.05), 0 6px 20px rgba(58,47,40,.06);
  --maxw: 1140px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ivory); color: var(--brown);
  font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16.5px; line-height: 1.7; -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
a { color: var(--jade); text-decoration: none; }
a:hover { color: var(--jade-d); }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--brown); letter-spacing: -.01em; }
img { max-width: 100%; display: block; }

/* Header */
.site-head { position: sticky; top: 0; z-index: 30; background: rgba(250,247,240,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; gap: 18px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand .mark { width: 44px; height: 44px; object-fit: contain; display: block; }
.site-foot .brand .mark { filter: brightness(0) invert(1) opacity(.92); }
.brand b { font-size: 18px; color: var(--brown); line-height: 1.1; white-space: nowrap; }
.brand small { display: block; font-size: 11px; color: var(--bronze-d); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
.nav { display: flex; gap: 1px; margin-left: auto; flex-wrap: wrap; }
.nav a { display: inline-flex; align-items: center; gap: 5px; padding: 8px 9px; border-radius: 8px; font-size: 13.5px; font-weight: 600; color: var(--brown-2); white-space: nowrap; }
.nav a:hover { background: var(--jade-soft); color: var(--jade-d); }
.nav a.active { color: var(--jade-d); background: var(--jade-soft); }
/* Icon trong menu/CTA — kế thừa currentColor, chỉ tô nhạt nhẹ */
.nav-ic { display: inline-flex; flex: none; }
.nav-ic svg { width: 15px; height: 15px; opacity: .8; }
.nav a.active .nav-ic svg, .nav a:hover .nav-ic svg { opacity: 1; }
/* "Đăng nhập"/tài khoản trong menu — chỉ hiện khi menu thu gọn (mobile/tablet) */
.nav .nav-login { display: none; color: var(--jade-d); font-weight: 700; font: inherit; }
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 9px; font-weight: 700; font-size: 14.5px; border: 0; cursor: pointer; transition: filter .15s, transform .05s; }
.btn-primary { background: var(--jade); color: #fff; }
.btn-primary:hover { filter: brightness(1.07); color: #fff; }
.btn-bronze { background: var(--bronze); color: #fff; }
.btn-bronze:hover { filter: brightness(1.07); color: #fff; }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--brown); }
.btn-ghost:hover { border-color: var(--jade); color: var(--jade-d); }
.head-cta { margin-left: 8px; white-space: nowrap; }
/* Góc tài khoản — dạng "profile pill" thông thường: avatar tròn + nhãn */
.account-btn { display: inline-flex; align-items: center; gap: 8px; padding: 5px 15px 5px 5px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); font-weight: 700; font-size: 14px; color: var(--brown); transition: border-color .15s, color .15s, box-shadow .15s; }
.account-btn:hover { border-color: var(--jade); color: var(--jade-d); box-shadow: 0 0 0 3px var(--jade-soft); }
/* Menu tài khoản (đã đăng nhập) — dropdown bằng <details> thuần */
.head-account { margin-left: 8px; position: relative; }
.acct-menu summary { list-style: none; cursor: pointer; }
.acct-menu summary::-webkit-details-marker { display: none; }
.acct-menu summary { margin-left: 0; }
.acct-name { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.avatar-img { object-fit: cover; }
.acct-pop { position: absolute; right: 0; top: calc(100% + 8px); min-width: 200px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); padding: 6px; z-index: 40; display: flex; flex-direction: column; }
.acct-pop a, .acct-pop button { display: block; width: 100%; text-align: left; padding: 9px 12px; border-radius: 8px; font-size: 14px; font-weight: 600; color: var(--brown); background: none; border: 0; cursor: pointer; }
.acct-pop a:hover, .acct-pop button:hover { background: var(--jade-soft); color: var(--jade-d); }
.acct-pop .acct-logout { color: var(--bronze-d); border-top: 1px solid var(--line); border-radius: 0 0 8px 8px; margin-top: 4px; }
.account-btn .avatar { width: 30px; height: 30px; border-radius: 999px; background: var(--jade); color: #fff; display: grid; place-items: center; flex: none; }
.account-btn .avatar svg { width: 18px; height: 18px; opacity: 1; }
/* Nút tài khoản CHỈ avatar (không tên/mũi tên) — padding đều, bỏ gap để avatar nằm cân giữa khung tròn. */
.account-btn-avatar { gap: 0; padding: 5px; }
.menu-toggle { display: none; }

/* Hero */
.hero { background: linear-gradient(160deg, #fbf8f1 0%, var(--jade-soft) 100%); border-bottom: 1px solid var(--line); }
.hero .wrap { padding: 64px 20px 58px; text-align: center; }
.hero .eyebrow { color: var(--bronze-d); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: 13px; }
.hero h1 { font-size: clamp(30px, 5vw, 50px); margin: 14px 0 8px; }
.hero .tagline { font-size: clamp(16px, 2.4vw, 21px); color: var(--jade-d); font-weight: 600; }
.hero p.lead { max-width: 720px; margin: 18px auto 26px; color: var(--brown-2); font-size: 17px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Section */
section.block { padding: 52px 0; }
section.block.alt { background: var(--ivory-2); }
.sec-head { text-align: center; max-width: 680px; margin: 0 auto 34px; }
.sec-head .kicker { color: var(--bronze-d); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; font-size: 12.5px; }
.sec-head h2 { font-size: clamp(24px, 3.4vw, 33px); margin: 8px 0 0; }
.sec-head p { color: var(--brown-2); margin: 10px 0 0; }
.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* Card */
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column; transition: transform .12s, box-shadow .12s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(58,47,40,.1); }
.card .body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card .tag { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--jade-d); background: var(--jade-soft); padding: 3px 10px; border-radius: 999px; }
.card h3 { font-size: 18px; margin: 2px 0; }
.card p { margin: 0; color: var(--brown-2); font-size: 14.5px; }
.card .meta { margin-top: auto; padding-top: 8px; font-size: 13px; color: var(--bronze-d); font-weight: 600; }
.card.linhvuc { text-align: center; align-items: center; padding: 26px 16px; }
.card.linhvuc .ic { width: 56px; height: 56px; border-radius: 14px; background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; margin-bottom: 8px; }
.card.linhvuc .ic svg { width: 30px; height: 30px; }

/* Thẻ công cụ (trang chủ) — bấm thẳng vào từng công cụ */
.card.tool-card { text-decoration: none; color: inherit; cursor: pointer; }
.card.tool-card:hover .ic { background: var(--jade-d); color: #fff; }
.card.tool-card .tool-go { margin-top: 10px; display: inline-flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 700; color: var(--jade-d); }
.card.tool-card .tool-go svg { width: 15px; height: 15px; transition: transform .12s; }
.card.tool-card:hover .tool-go svg { transform: translateX(3px); }

/* Icon SVG — kế thừa màu theo phần tử cha (currentColor) */
.ic svg, .svc-ic svg, .ic-sm svg { display: block; }
.svc-ic { width: 50px; height: 50px; border-radius: 13px; background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; flex: none; }
.svc-ic svg { width: 26px; height: 26px; }
.book-ph { color: var(--jade); }
.book-ph svg { width: 46px; height: 46px; }
.ic-sm { color: var(--jade); }
.ic-sm svg { width: 18px; height: 18px; vertical-align: -3px; }
.kicker .ic-sm svg { width: 16px; height: 16px; }
/* Chống tràn/vỡ chữ */
.card h3, .card p, .prose, .meta-row, .dl dd { overflow-wrap: anywhere; }
.card .body > * { min-width: 0; }

/* CTA dải */
.cta { background: linear-gradient(150deg, var(--jade), var(--jade-d)); color: #fff; border-radius: 18px; padding: 40px; text-align: center; }
.cta h2 { color: #fff; font-size: clamp(22px, 3vw, 30px); }
.cta p { color: #e7efe9; max-width: 620px; margin: 10px auto 22px; }

/* Empty */
.empty { text-align: center; color: var(--brown-2); border: 1px dashed var(--line); border-radius: 14px; padding: 40px; background: var(--paper); }

/* Footer */
.site-foot { background: var(--brown); color: #d9cfc4; margin-top: 10px; }
.site-foot .wrap { padding: 44px 20px 28px; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
.site-foot h4 { color: #fff; font-size: 15px; margin: 0 0 12px; }
.site-foot a { color: #d9cfc4; display: block; padding: 3px 0; font-size: 14px; }
.site-foot a:hover { color: #fff; }
.site-foot .brand b { color: #fff; }
.site-foot .brand small { color: var(--bronze); }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.12); }
.foot-bottom .wrap { padding: 16px 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 13px; color: #b8a99c; }

/* Page hero nhỏ (trang phụ) */
.page-hero { background: linear-gradient(160deg, #fbf8f1, var(--jade-soft)); border-bottom: 1px solid var(--line); }
.page-hero .wrap { padding: 40px 20px 34px; }
.page-hero .eyebrow { color: var(--bronze-d); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 12.5px; }
.page-hero h1 { font-size: clamp(26px, 4vw, 38px); margin: 8px 0 6px; }
.page-hero p { color: var(--brown-2); max-width: 700px; margin: 0; }
.breadcrumb { font-size: 13px; color: var(--brown-2); margin-bottom: 6px; }

/* Chips lọc */
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 28px; }
.chip { padding: 7px 15px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); font-size: 14px; font-weight: 600; color: var(--brown-2); }
.chip:hover { border-color: var(--jade); color: var(--jade-d); }
.chip.active { background: var(--jade); border-color: var(--jade); color: #fff; }

/* Article reading */
.article-layout { display: grid; grid-template-columns: 1fr 240px; gap: 40px; align-items: start; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 1.6em; font-size: 25px; scroll-margin-top: 90px; }
.prose h3 { margin-top: 1.3em; font-size: 20px; scroll-margin-top: 90px; }
.prose p { margin: 1em 0; }
.prose ul { margin: 1em 0; padding-left: 1.3em; }
.prose li { margin: .4em 0; }
.toc { position: sticky; top: 88px; font-size: 14px; border-left: 2px solid var(--line); padding-left: 16px; }
.toc h4 { font-size: 12.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--bronze-d); margin: 0 0 10px; }
.toc a { display: block; padding: 4px 0; color: var(--brown-2); }
.toc a.lvl-3 { padding-left: 12px; font-size: 13.5px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 14px; color: var(--brown-2); font-size: 14px; margin: 4px 0 0; }

/* Form */
.form-card { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); padding: 26px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 5px; }
.field input, .field select, .field textarea { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px; background: #fff; font: inherit; color: var(--brown); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px var(--jade-soft); }
.alert-ok { background: var(--jade-soft); border: 1px solid var(--jade); color: var(--jade-d); border-radius: 10px; padding: 14px 16px; margin-bottom: 18px; font-weight: 600; }
.dl { margin: 0; } .dl dt { font-weight: 700; color: var(--jade-d); margin-top: 12px; font-size: 14px; } .dl dd { margin: 2px 0 0; color: var(--brown-2); font-size: 14.5px; }

@media (max-width: 860px) { .article-layout { grid-template-columns: 1fr; } .toc { position: static; border-left: 0; padding-left: 0; } }

/* Thu gọn menu (hamburger) sớm — tránh thanh điều hướng rớt 2 hàng trên laptop/tablet */
@media (max-width: 1120px) {
  .menu-toggle { display: inline-flex; margin-left: auto; }
  .nav { display: none; flex-direction: column; width: 100%; margin: 0; padding: 6px 0 10px; order: 3; gap: 2px; }
  .nav a { font-size: 15px; padding: 10px 12px; }
  .nav-ic svg { width: 17px; height: 17px; }
  #navchk:checked ~ .nav { display: flex; }
  .nav .nav-login { display: inline-flex; width: 100%; margin-top: 4px; border-top: 1px solid var(--line); padding-top: 12px; border-radius: 0; }
  .head-cta { display: none; }
  .site-head .wrap { flex-wrap: wrap; }
}
@media (max-width: 860px) {
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .g-3 { grid-template-columns: repeat(2, 1fr); }
  .site-foot .wrap { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .hero .wrap { padding: 44px 20px; }
  /* Trên điện thoại: chỉ hiện LOGO ở header, ẩn chữ "Học quán Sơn Chu" / slogan cho gọn (header công khai). */
  .site-head .brand span { display: none; }
}

/* ============================================================
   TRANG CHỦ — Minh hoạ SVG (tự vẽ) + hiệu ứng động
   Bảng màu: ngà · mặc ngọc · vàng đồng · nâu. Tôn trọng prefers-reduced-motion.
   ============================================================ */
@keyframes sc-spin     { to { transform: rotate(360deg); } }
@keyframes sc-spin-rev { to { transform: rotate(-360deg); } }
@keyframes sc-float    { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
@keyframes sc-float-2  { 0%,100% { transform: translateY(0); } 50% { transform: translateY(12px); } }
@keyframes sc-drift    { 0% { transform: translateX(-4%); } 100% { transform: translateX(104%); } }
@keyframes sc-drift-2  { 0% { transform: translateX(108%); } 100% { transform: translateX(-12%); } }
@keyframes sc-twinkle  { 0%,100% { opacity:.2; transform: scale(.7); } 50% { opacity:1; transform: scale(1); } }
@keyframes sc-glow     { 0%,100% { opacity:.55; } 50% { opacity:.9; } }

/* ---- Hero: bố cục 2 cột (chữ + minh hoạ la bàn) + nền động ---- */
.hero { position: relative; overflow: hidden; }
.hero .hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 36px; text-align: left; padding: 70px 20px 64px; }
.hero .hero-copy h1 { font-size: clamp(30px, 4.6vw, 52px); }
.hero .hero-copy p.lead { margin: 18px 0 26px; }
.hero .hero-copy .actions { justify-content: flex-start; }
.hero .hero-stats { display: flex; gap: 26px; margin-top: 30px; flex-wrap: wrap; }
.hero .hero-stats b { display: block; font-size: 26px; color: var(--jade-d); line-height: 1; font-weight: 800; }
.hero .hero-stats span { font-size: 13px; color: var(--brown-2); font-weight: 600; }

/* Nền động sau hero (sao + mây + núi) */
.hero-bg { position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
.hero-bg .stars circle { animation: sc-twinkle 4s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.hero-cloud { position: absolute; opacity: .5; color: #fff; }
.hero-cloud.c1 { top: 14%; width: 150px; animation: sc-drift 38s linear infinite; }
.hero-cloud.c2 { top: 30%; width: 110px; opacity: .38; animation: sc-drift-2 52s linear infinite; }
.hero-cloud.c3 { top: 8%;  width: 90px;  opacity: .3;  animation: sc-drift 64s linear infinite; }
.hero-mountains { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: auto; color: var(--jade); }

/* La bàn thiên văn (minh hoạ chính của hero) */
.astrolabe { width: 100%; max-width: 420px; margin: 0 auto; display: block; transform-origin: center; }
.astrolabe .ring-out  { animation: sc-spin 90s linear infinite; transform-origin: 200px 200px; }
.astrolabe .ring-dots { animation: sc-spin-rev 120s linear infinite; transform-origin: 200px 200px; }
.astrolabe .needle    { animation: sc-spin 26s linear infinite; transform-origin: 200px 200px; }
.astrolabe .taiji     { animation: sc-spin-rev 30s linear infinite; transform-box: fill-box; transform-origin: center; }
.astrolabe .halo      { animation: sc-glow 5s ease-in-out infinite; transform-origin: 200px 200px; }
/* Vòng quẻ chuyển dần Tiên Thiên ⇄ Hậu Thiên (mờ chồng, lặp lại) */
.astrolabe .bagua    { transition: opacity .6s ease; }
.astrolabe .bagua-tt { opacity: 1; animation: sc-bagua-tt 16s ease-in-out infinite; }
.astrolabe .bagua-ht { opacity: 0; animation: sc-bagua-ht 16s ease-in-out infinite; }
@keyframes sc-bagua-tt { 0%,40% { opacity: 1; } 50%,90% { opacity: 0; } 100% { opacity: 1; } }
@keyframes sc-bagua-ht { 0%,40% { opacity: 0; } 50%,90% { opacity: 1; } 100% { opacity: 0; } }

/* ---- Reveal khi cuộn tới ---- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; transition-delay: var(--rd, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* ---- Nét bút thuỷ mặc ngăn cách mục ---- */
.brush-divider { display: block; width: 180px; height: 18px; margin: 14px auto 0; color: var(--bronze); opacity: .8; }

/* ---- Trang trí góc mục (mây ruyi mờ) ---- */
section.block { position: relative; overflow: hidden; }
.sec-deco { position: absolute; color: var(--jade); opacity: .05; pointer-events: none; z-index: 0; }
.sec-deco.tl { top: -20px; left: -30px; width: 200px; animation: sc-float-2 11s ease-in-out infinite; }
.sec-deco.br { bottom: -30px; right: -30px; width: 240px; animation: sc-float 13s ease-in-out infinite; }
section.block .wrap { position: relative; z-index: 1; }

/* Thẻ công cụ: nền gradient nhẹ + viền sáng khi hover */
.card.tool-card { position: relative; background: linear-gradient(170deg, var(--paper), #fbf5ea); }
.card.tool-card::after { content: ""; position: absolute; inset: 0; border-radius: 14px; box-shadow: inset 0 0 0 1px transparent; transition: box-shadow .2s; pointer-events: none; }
.card.tool-card:hover::after { box-shadow: inset 0 0 0 2px var(--jade); }
.card.tool-card .ic { transition: background .2s, color .2s, transform .2s; }
.card.tool-card:hover .ic { transform: translateY(-2px) rotate(-4deg); }

@media (max-width: 860px) {
  .hero .hero-inner { grid-template-columns: 1fr; text-align: center; padding: 48px 20px; gap: 22px; }
  .hero .hero-copy .actions, .hero .hero-stats { justify-content: center; }
  .hero .hero-art { order: -1; }
  .astrolabe { max-width: 280px; }
}

/* ============================================================
   TRANG GIỚI THIỆU — minh hoạ + bố cục đặc thù
   ============================================================ */
/* Hoa sen (hero + sáng lập) */
.lotus-svg { width: 100%; height: auto; display: block; color: var(--jade); }
.about-hero-art .lotus-frame { position: relative; max-width: 420px; margin: 0 auto; padding: 26px; }
.lotus-frame { animation: sc-float 8s ease-in-out infinite; }
.lotus-frame::before { content: ""; position: absolute; inset: 0; border-radius: 50%; background: radial-gradient(circle at 50% 60%, rgba(169,118,46,.16), transparent 68%); z-index: -1; }
.lotus-frame-sm { max-width: 300px; margin: 0 auto; }

/* Hàng nội dung 2 cột: chữ + minh hoạ */
.feature-row { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.feature-row.reverse .feature-art { order: -1; }
.feature-text .kicker { color: var(--bronze-d); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; font-size: 12.5px; }
.feature-text h2 { font-size: clamp(23px, 3.2vw, 31px); margin: 8px 0 14px; }
.feature-text p { color: var(--brown-2); margin: 0 0 12px; }
.feature-text .brush-divider { margin-left: 0; }
.feature-art .astrolabe { max-width: 360px; }

/* Cột trụ (Tầm nhìn / Sứ mệnh) */
.card.pillar { padding: 28px 26px; }
.card.pillar .ic { width: 56px; height: 56px; border-radius: 14px; background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; margin-bottom: 14px; }
.card.pillar .ic svg { width: 30px; height: 30px; }
.card.pillar h3 { font-size: 20px; margin: 0 0 8px; }
.card.pillar p { margin: 0; color: var(--brown-2); font-size: 15px; }

/* Thẻ giá trị cốt lõi */
.card.value-card { text-align: center; align-items: center; padding: 30px 22px; }
.card.value-card .ic { width: 60px; height: 60px; border-radius: 50%; background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; margin-bottom: 12px; transition: background .2s, color .2s, transform .2s; }
.card.value-card .ic svg { width: 32px; height: 32px; }
.card.value-card:hover .ic { background: var(--jade-d); color: #fff; transform: translateY(-3px); }
.card.value-card h3 { font-size: 19px; margin: 2px 0 6px; }

/* Dòng thời gian */
.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 8px; }
.timeline::before { content: ""; position: absolute; left: 26px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--jade-soft), var(--bronze), var(--jade-soft)); }
.tl-item { position: relative; display: flex; gap: 22px; padding: 12px 0 22px; }
.tl-dot { position: relative; z-index: 1; flex: none; width: 44px; height: 44px; border-radius: 50%; background: var(--jade); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 18px; box-shadow: 0 0 0 5px var(--ivory); }
.tl-body h3 { font-size: 18px; margin: 6px 0 4px; }
.tl-body p { margin: 0; color: var(--brown-2); font-size: 15px; }

/* Hệ thống chuyên gia */
.expert-card { text-align: center; align-items: center; padding: 26px 20px 24px; }
.expert-photo { width: 120px; height: 120px; border-radius: 50%; overflow: hidden; background: var(--jade-soft); display: grid; place-items: center; margin-bottom: 14px; border: 3px solid var(--paper); box-shadow: 0 4px 16px rgba(58,47,40,.12); }
.expert-photo img { width: 100%; height: 100%; object-fit: cover; }
.expert-initial { font-size: 44px; font-weight: 800; color: var(--jade-d); }
.expert-info h3 { font-size: 18px; margin: 0 0 4px; }
.expert-title { color: var(--bronze-d); font-weight: 700; font-size: 13.5px; margin-bottom: 8px; }
.expert-info p { margin: 0; color: var(--brown-2); font-size: 14.5px; }
.expert-fields { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 2px 0 10px; }
.expert-field { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 999px; background: var(--jade-soft); border: 1px solid rgba(58,47,40,.08); color: var(--brown-2); font-size: 12px; font-weight: 600; line-height: 1; }
.expert-field .ef-ic { font-size: 13px; }

/* ===== Con số cộng đồng (band tối) ===== */
.stats-band { background: var(--jade-d); color: #fff; }
.stats-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 44px; padding: 30px 20px; text-align: center; }
.stats-row > div { min-width: 116px; }
.stats-row b { display: block; font-size: 32px; font-weight: 800; color: #fff; line-height: 1; letter-spacing: -.01em; }
.stats-row span { display: block; margin-top: 6px; font-size: 13.5px; color: rgba(255,255,255,.82); font-weight: 600; }

/* ===== Trợ lý AI (khối nổi bật) ===== */
.ai-feature .ai-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.ai-copy h2 { font-size: 30px; margin: 6px 0 12px; }
.ai-copy p { color: var(--brown-2); font-size: 16.5px; line-height: 1.7; }
.ai-points { list-style: none; margin: 16px 0 22px; padding: 0; display: grid; gap: 9px; }
.ai-points li { display: flex; align-items: center; gap: 9px; font-weight: 600; color: var(--brown); }
.ai-pt-ic { display: inline-flex; flex: none; color: var(--jade); }
.ai-pt-ic svg { width: 16px; height: 16px; }
.ai-art { position: relative; min-height: 250px; display: grid; place-items: center; }
.ai-orb { width: 156px; height: 156px; border-radius: 50%; background: radial-gradient(circle at 34% 30%, var(--jade), var(--jade-d)); display: grid; place-items: center; box-shadow: 0 22px 50px -12px rgba(47,110,91,.45); position: relative; }
.ai-orb::after { content: ""; position: absolute; inset: -14px; border-radius: 50%; border: 2px dashed var(--bronze); opacity: .4; animation: ai-spin 20s linear infinite; }
.ai-orb-ic svg { width: 64px; height: 64px; color: #fff; }
.ai-bubble { position: absolute; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 9px 13px; font-size: 13px; font-style: italic; color: var(--brown); box-shadow: var(--shadow); max-width: 240px; }
.ai-bubble.b1 { top: 4%; left: -2%; }
.ai-bubble.b2 { bottom: 6%; right: -2%; }
@keyframes ai-spin { to { transform: rotate(360deg); } }

/* ===== Trang Hướng dẫn / FAQ / Pháp lý ===== */
.guide-doc section, .faq-doc section, .legal-doc section { margin-top: 26px; }
.guide-doc h2, .faq-doc h2, .legal-doc h2 { font-size: 22px; color: var(--jade-d); margin: 0 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--jade-soft); scroll-margin-top: 84px; }
.guide-doc h3, .legal-doc h3 { font-size: 16px; color: var(--brown); margin: 16px 0 6px; }
.guide-doc p, .faq-doc p, .legal-doc p { color: var(--brown-2); line-height: 1.75; margin: 8px 0; }
.guide-doc ul, .legal-doc ul { margin: 8px 0; padding-left: 22px; }
.guide-doc li, .legal-doc li { color: var(--brown-2); line-height: 1.7; margin: 5px 0; }
.guide-doc b, .legal-doc b, .faq-doc b { color: var(--brown); }
.hd-steps { counter-reset: s; list-style: none; padding: 0; margin: 8px 0; display: grid; gap: 10px; }
.hd-steps li { counter-increment: s; position: relative; padding: 12px 14px 12px 50px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); color: var(--brown-2); }
.hd-steps li::before { content: counter(s); position: absolute; left: 12px; top: 11px; width: 26px; height: 26px; border-radius: 50%; background: var(--jade); color: #fff; font-weight: 800; display: grid; place-items: center; }
.hd-note { background: var(--jade-soft); border-left: 3px solid var(--jade); border-radius: 8px; padding: 10px 14px; font-size: 14.5px; color: var(--brown-2); }
.faq-q { border: 1px solid var(--line); border-radius: 12px; background: var(--paper); margin: 8px 0; overflow: hidden; }
.faq-q > summary { cursor: pointer; padding: 12px 16px; font-weight: 700; color: var(--brown); list-style: none; position: relative; padding-right: 40px; }
.faq-q > summary::-webkit-details-marker { display: none; }
.faq-q > summary::after { content: "+"; position: absolute; right: 16px; top: 10px; font-size: 19px; color: var(--jade); transition: transform .2s; }
.faq-q[open] > summary::after { transform: rotate(45deg); }
.faq-q > div { padding: 0 16px 14px; color: var(--brown-2); line-height: 1.7; }
.legal-foot { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; color: var(--brown-2); }
@media (max-width: 860px) {
  .ai-feature .ai-inner { grid-template-columns: 1fr; gap: 24px; }
  .ai-art { order: -1; min-height: 200px; }
  .ai-bubble { display: none; }
  .stats-row b { font-size: 27px; }
}

/* ============================================================
   SƠ ĐỒ TỔ CHỨC — cây hội đồng điều hành
   ============================================================ */
.org-scroll { overflow-x: auto; padding: 8px 4px 16px; margin-top: 8px; }
.org-tree, .org-tree ul { list-style: none; margin: 0; padding: 0; display: flex; justify-content: center; }
.org-tree { min-width: max-content; font-size: 0; }
.org-tree ul { padding-top: 18px; }
.org-tree li { position: relative; padding: 18px 7px 0; text-align: center; }

/* Đường nối dọc từ cha xuống vạch ngang */
.org-tree li::before, .org-tree li::after {
  content: ''; position: absolute; top: 0; width: 50%; height: 18px;
  border-top: 2px solid var(--line);
}
.org-tree li::before { right: 50%; border-right: 2px solid var(--line); }
.org-tree li::after  { left: 50%; }
/* Con duy nhất: chỉ cần đường thẳng đứng */
.org-tree li:only-child::before, .org-tree li:only-child::after { display: none; }
.org-tree li:only-child { padding-top: 18px; }
/* Bỏ vạch ngang thừa ở hai mép */
.org-tree li:first-child::before { border: 0; }
.org-tree li:last-child::after { border: 0; }
/* Đường nối dọc đi xuống từ mỗi node có con */
.org-tree ul::before {
  content: ''; position: absolute; top: 0; left: 50%;
  border-left: 2px solid var(--line); height: 18px;
}
.org-tree > li { padding-top: 0; }
.org-tree > li::before, .org-tree > li::after { display: none; }

/* Node lãnh đạo (Chủ tịch / Phó CT / Văn phòng) */
.org-lead {
  display: inline-flex; flex-direction: column; align-items: center; gap: 5px;
  background: #fff; border: 1px solid var(--line); border-radius: 13px;
  padding: 10px 13px 9px; box-shadow: 0 3px 11px rgba(58,47,40,.08);
  min-width: 128px;
}
.org-lead.org-top { border-color: var(--gold, #b08d3e); box-shadow: 0 5px 16px rgba(176,141,62,.22); }
.org-role { font-size: 10.5px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--bronze-d); }
.org-lead-name { font-size: 13px; font-weight: 800; color: var(--ink, #3a2f28); line-height: 1.25; }
.org-top .org-lead-name { font-size: 14.5px; }

/* Ban chuyên môn */
.org-dept {
  display: inline-flex; flex-direction: column; align-items: stretch;
  background: #fff; border: 1px solid var(--line); border-radius: 11px;
  overflow: hidden; box-shadow: 0 2px 9px rgba(58,47,40,.07);
  width: 138px; text-align: left;
}
.org-dept-head { padding: 7px 10px; font-size: 11.5px; font-weight: 800; color: #fff; line-height: 1.25; }
.org-dept .org-members { padding: 8px 10px 9px; }

/* Tông màu đầu ban */
.tone-sky    .org-dept-head { background: #4a7fa3; }
.tone-rose   .org-dept-head { background: #b06a76; }
.tone-violet .org-dept-head { background: #7a6aa3; }
.tone-amber  .org-dept-head { background: #b08d3e; }
.tone-jade   .org-dept-head { background: #4f8a76; }

/* Avatar tròn */
.org-ava { display: inline-grid; place-items: center; width: 28px; height: 28px; flex: 0 0 auto;
  border-radius: 50%; overflow: hidden; background: var(--jade-soft); border: 2px solid var(--paper);
  box-shadow: 0 2px 5px rgba(58,47,40,.12); }
.org-ava img { width: 100%; height: 100%; object-fit: cover; }
.org-ava .org-ini { font-size: 12px; font-weight: 800; color: var(--jade-d); }
.org-ava.lg { width: 48px; height: 48px; border-width: 3px; }
.org-ava.lg .org-ini { font-size: 20px; }
.org-top .org-ava.lg { width: 58px; height: 58px; }
.org-ava-pair { display: inline-flex; gap: 6px; }

/* Banner lời ngỏ của Chủ tịch (trang chủ) */
.chairman-banner {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: minmax(220px, 290px) 1fr; gap: 38px; align-items: center;
  padding: 42px 44px; border-radius: 22px;
  background: linear-gradient(135deg, #234f43 0%, #2f6e5b 52%, #3a2f28 118%);
  color: #f4ede1; box-shadow: 0 18px 48px rgba(35,79,67,.26);
  border: 1px solid rgba(169,118,46,.45);
}
.chairman-banner .cb-deco { position: absolute; right: -40px; top: -30px; width: 280px; opacity: .08; color: #fff; pointer-events: none; }
.cb-portrait { position: relative; z-index: 1; }
.cb-portrait img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 18px;
  border: 3px solid rgba(212,175,90,.55); box-shadow: 0 12px 32px rgba(0,0,0,.32); }
.cb-body { position: relative; z-index: 1; }
.cb-body .kicker { color: #d9b974; letter-spacing: .12em; text-transform: uppercase; font-size: 12px; font-weight: 700; }
.cb-head { color: #fff; font-size: 25px; margin: 8px 0 14px; letter-spacing: -.01em; }
.cb-quote { margin: 0; padding: 0 0 0 18px; border-left: 3px solid rgba(212,175,90,.55); }
.cb-quote p { font-size: 16.5px; line-height: 1.75; color: #f1e9dc; margin: 0 0 12px; font-style: italic; }
.cb-quote p:last-child { margin-bottom: 0; }
.cb-quote b { color: #f3d9a0; font-weight: 700; font-style: normal; }
.cb-sign { margin-top: 18px; }
.cb-sign b { display: block; font-size: 17px; color: #fff; }
.cb-sign span { font-size: 13.5px; color: rgba(244,237,225,.78); }
.cb-btn { color: #fff; border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.1); }
.cb-btn:hover { background: rgba(255,255,255,.18); color: #fff; }
@media (max-width: 760px) {
  .chairman-banner { grid-template-columns: 1fr; gap: 24px; padding: 30px 24px; text-align: center; }
  .cb-portrait { max-width: 200px; margin: 0 auto; }
  .cb-quote { text-align: left; }
}

/* Thẻ cơ sở hoạt động — bản đồ Google Maps */
.coso-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.coso-map { aspect-ratio: 16 / 10; background: var(--jade-soft); }
.coso-map iframe { width: 100%; height: 100%; border: 0; display: block; }
.coso-body { padding: 16px 18px 18px; }
.coso-body h3 { margin: 0 0 6px; }
.coso-body p { margin: 0 0 12px; color: var(--brown-2); font-size: 14.5px; }
.coso-link { display: inline-flex; align-items: center; gap: 7px; font-weight: 700; font-size: 13.5px; color: var(--jade-d); text-decoration: none; }
.coso-link:hover { color: var(--bronze-d); }
.coso-link svg { flex: 0 0 auto; }

/* Người trong ban */
.org-members { display: flex; flex-direction: column; gap: 6px; }
.org-person { display: flex; align-items: center; gap: 7px; }
.org-person .org-name { font-size: 12px; font-weight: 600; color: var(--brown-2); line-height: 1.2; }

@media (max-width: 860px) {
  .org-tree, .org-tree ul { flex-direction: column; align-items: center; }
  .org-tree ul { padding-top: 12px; }
  .org-tree li { padding: 12px 0 0; }
  .org-tree li::before, .org-tree li::after, .org-tree ul::before { display: none; }
  .org-lead, .org-dept { position: relative; }
  .org-tree ul > li::before {
    content: ''; display: block; position: absolute; top: -12px; left: 50%;
    border-left: 2px solid var(--line); height: 12px;
  }
}

@media (max-width: 860px) {
  .feature-row { grid-template-columns: 1fr; gap: 26px; text-align: center; }
  .feature-row.reverse .feature-art, .feature-art { order: -1; }
  .feature-text .brush-divider { margin-left: auto; }
  .feature-art .astrolabe, .about-hero-art .lotus-frame { max-width: 280px; }
}

/* ============================================================
   TRANG KHÓA HỌC — minh hoạ sách + nhóm lĩnh vực + thẻ khóa học
   ============================================================ */
/* Minh hoạ sách mở (hero) */
.courses-hero-art .scholar-svg { width: 100%; max-width: 440px; margin: 0 auto; display: block; }
.scholar-svg .sch-book { animation: sc-float 7s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.scholar-svg .sch-glow { animation: sc-glow 5s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.scholar-svg .sch-rays { animation: sc-glow 3.6s ease-in-out infinite; transform-box: fill-box; transform-origin: 200px 150px; }
.scholar-svg .sch-stars > * { transform-box: fill-box; transform-origin: center; animation: sc-twinkle 3s ease-in-out infinite; }
.scholar-svg .sch-stars .s1 { animation-delay: .0s; } .scholar-svg .sch-stars .s2 { animation-delay: .6s; }
.scholar-svg .sch-stars .s3 { animation-delay: 1.1s; } .scholar-svg .sch-stars .s4 { animation-delay: 1.6s; }
.scholar-svg .sch-stars .s5 { animation-delay: 2.1s; }

/* Chips lĩnh vực (nâng cấp: icon + số đếm) */
.chips .chip { display: inline-flex; align-items: center; gap: 7px; }
.chip-ic { display: inline-flex; }
.chip-ic svg { width: 16px; height: 16px; opacity: .85; }
.chip-n { font-size: 12px; font-weight: 700; background: var(--jade-soft); color: var(--jade-d); border-radius: 999px; padding: 1px 8px; min-width: 20px; text-align: center; }
.chip.active .chip-n { background: rgba(255,255,255,.25); color: #fff; }

/* Tiêu đề lĩnh vực (mỗi dải) */
.field-band { margin: 0 0 14px; padding: 18px 0 6px; }
.field-band + .field-band { border-top: 1px dashed var(--line); margin-top: 18px; }
.field-head { display: flex; align-items: center; gap: 16px; margin: 6px 0 20px; }
.field-ic { flex: none; width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(150deg, var(--jade), var(--jade-d)); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 16px rgba(35,79,67,.25); }
.field-ic svg { width: 30px; height: 30px; }
.field-head h3 { font-size: 22px; margin: 0; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.field-n { font-size: 12.5px; font-weight: 700; color: var(--bronze-d); background: #f6ecd8; padding: 2px 10px; border-radius: 999px; }
.field-head p { margin: 3px 0 0; color: var(--brown-2); font-size: 14.5px; }
.field-more { margin-left: auto; flex: none; display: inline-flex; align-items: center; gap: 5px; font-size: 13.5px; font-weight: 700; color: var(--jade-d); white-space: nowrap; }
.field-more svg { width: 15px; height: 15px; transition: transform .15s; }
.field-more:hover svg { transform: translateX(3px); }

/* Thẻ khóa học */
.card.course-card { text-decoration: none; color: inherit; }
.course-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; display: grid; place-items: center; background: linear-gradient(150deg, var(--jade), var(--jade-d)); }
.course-cover img { width: 100%; height: 100%; object-fit: cover; }
.course-cover .cover-ic { color: rgba(255,255,255,.92); }
.course-cover .cover-ic svg { width: 56px; height: 56px; }
.course-cover .cover-deco { position: absolute; right: -16px; bottom: -14px; width: 130px; color: #fff; opacity: .12; }
.course-cover .cover-deco svg { width: 100%; height: auto; }
.course-card:hover .cover-ic { transform: scale(1.08) rotate(-4deg); transition: transform .25s; }
/* Ảnh đại diện mặc định (vẽ SVG) khi khóa học chưa có banner */
.course-cover .cover-art { position: absolute; inset: 0; }
.course-cover .cover-art > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.course-cover .cover-seal { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 58px; height: 58px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.45); box-shadow: 0 4px 18px rgba(0,0,0,.18); backdrop-filter: blur(1px); transition: transform .25s; }
.course-cover .cover-seal-ic { color: rgba(255,255,255,.95); display: grid; place-items: center; }
.course-cover .cover-seal-ic svg { width: 30px; height: 30px; }
.course-card:hover .cover-seal { transform: translate(-50%, -50%) scale(1.07); }
/* Trạng thái đăng ký khóa học */
.pill-done { display: inline-flex; align-items: center; gap: .4em; padding: .5rem .9rem; border-radius: 999px; font-weight: 700; font-size: .9rem; color: #fff; background: rgba(33,37,41,.55); border: 1px solid rgba(255,255,255,.35); }
.enroll-tag { display: inline-block; margin-left: .4em; padding: .08rem .5rem; border-radius: 999px; font-size: .74rem; font-weight: 700; vertical-align: middle; }
.enroll-tag.is-open { background: #e7f3ec; color: #1f6e4a; }
.enroll-tag.is-done { background: #ecedef; color: #51565d; }
.done-note { padding: .7rem .85rem; border-radius: 10px; background: #f6f3ec; border: 1px solid #e6dcc6; color: var(--brown-2); font-size: .92rem; line-height: 1.5; }
.enroll-tag.is-running { background: #fbf0db; color: #8a5a12; }
.pill-running { display: inline-flex; align-items: center; gap: .4em; padding: .5rem .9rem; border-radius: 999px; font-weight: 700; font-size: .9rem; color: #fff; background: rgba(176,127,42,.85); border: 1px solid rgba(255,255,255,.35); }
.pill-running.is-closed { background: rgba(120,86,28,.62); }
/* Nhãn trạng thái trên thẻ khóa học */
.status-badge { position: absolute; top: .6rem; right: .6rem; display: inline-flex; align-items: center; gap: .3em; padding: .2rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 700; letter-spacing: .02em; color: #fff; backdrop-filter: blur(2px); }
.status-badge.sb-done { background: rgba(33,37,41,.78); }
.status-badge.sb-running { background: rgba(176,127,42,.88); }
.status-badge.sb-open { background: rgba(31,110,74,.9); }

/* ===== Khóa học: thanh công cụ lọc + đổi kiểu hiển thị ===== */
.course-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 26px; }
.ct-filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ct-search { position: relative; display: inline-flex; align-items: center; }
.ct-search svg { position: absolute; left: 11px; width: 17px; height: 17px; color: var(--bronze-d); pointer-events: none; }
.ct-search input { padding: 9px 14px 9px 34px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 14px; color: var(--brown); min-width: 220px; }
.ct-search input:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px var(--jade-soft); }
.ct-sel { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 14px; font-weight: 600; color: var(--brown-2); cursor: pointer; }
.ct-sel:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px var(--jade-soft); }
.ct-views { display: inline-flex; gap: 4px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); }
.ct-view { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border: 0; border-radius: 999px; background: transparent; font-size: 13.5px; font-weight: 700; color: var(--brown-2); cursor: pointer; transition: background .15s, color .15s; }
.ct-view svg { width: 17px; height: 17px; }
.ct-view:hover { color: var(--jade-d); }
.ct-view.active { background: var(--jade); color: #fff; }
.course-card.cf-hide, .field-band.cf-hide { display: none !important; }

/* — Kiểu danh sách — */
#course-results.is-list .grid { grid-template-columns: 1fr; gap: 14px; }
#course-results.is-list .course-card { flex-direction: row; align-items: stretch; }
#course-results.is-list .course-cover { flex: 0 0 36%; max-width: 300px; aspect-ratio: auto; min-height: 168px; }
#course-results.is-list .course-card .body { padding: 18px 20px; }
#course-results.is-list .course-card h3 { font-size: 19px; }
@media (max-width: 640px) {
  #course-results.is-list .course-card { flex-direction: column; }
  #course-results.is-list .course-cover { flex-basis: auto; max-width: none; aspect-ratio: 16/9; min-height: 0; }
  .ct-search input { min-width: 0; width: 100%; }
  .ct-filters { width: 100%; }
  .course-toolbar { gap: 10px; }
}
/* Sắc thái nền cover theo lĩnh vực */
.cover-tu-vi        { background: linear-gradient(150deg, #2f6e5b, #234f43); }
.cover-phong-thuy   { background: linear-gradient(150deg, #3a7d68, #245a3c); }
.cover-bat-tu-tu-tru{ background: linear-gradient(150deg, #b07f2e, #8a5f22); }
.cover-kinh-dich    { background: linear-gradient(150deg, #4a6b8a, #2f4f6e); }
.cover-nhan-tuong   { background: linear-gradient(150deg, #8a5f5f, #6a3f3f); }
.cover-trach-cat    { background: linear-gradient(150deg, #6a7d3a, #4a5a24); }
.cover-chung        { background: linear-gradient(150deg, #5a6f66, #3a4f46); }
/* Huy hiệu trình độ */
.lvl-badge { position: absolute; top: 10px; left: 10px; font-size: 11.5px; font-weight: 700; color: #fff; padding: 3px 10px; border-radius: 999px; backdrop-filter: blur(2px); background: rgba(35,79,67,.62); }
.lvl-nhap_mon  { background: rgba(47,110,91,.85); }
.lvl-co_ban    { background: rgba(58,125,104,.85); }
.lvl-trung_cap { background: rgba(169,118,46,.88); }
.lvl-nang_cao  { background: rgba(138,95,34,.9); }
.lvl-chuyen_sau{ background: rgba(58,47,40,.9); }
/* Thông số khóa */
.course-facts { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 2px; }
.course-facts .fact { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; color: var(--brown-2); font-weight: 600; }
.course-facts .fact .ic-sm svg { width: 15px; height: 15px; color: var(--jade); }
/* Giảng viên mini */
.course-teacher { display: flex; align-items: center; gap: 8px; margin-top: 4px; font-size: 13.5px; font-weight: 600; color: var(--brown); }
.course-teacher img, .course-teacher .t-initial { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; flex: none; }
.course-teacher .t-initial { background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; font-weight: 800; font-size: 13px; }
.course-go { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 5px; font-size: 13.5px; font-weight: 700; color: var(--jade-d); }
.course-go svg { width: 15px; height: 15px; transition: transform .15s; }
.course-card:hover .course-go svg { transform: translateX(3px); }

/* Bậc học (lộ trình) */
.ladder .step-card { text-align: center; align-items: center; padding: 26px 18px; position: relative; }
.ladder .step-no { width: 46px; height: 46px; border-radius: 50%; background: var(--jade-soft); color: var(--jade-d); display: grid; place-items: center; font-weight: 800; font-size: 20px; margin: 0 auto 10px; transition: background .2s, color .2s; }
.ladder .step-card:hover .step-no { background: var(--jade); color: #fff; }
.ladder .step-card h3 { font-size: 17px; margin: 2px 0 6px; }

@media (max-width: 860px) {
  .courses-hero-art .scholar-svg { max-width: 320px; }
  .field-head { flex-wrap: wrap; }
  .field-more { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .astrolabe, .astrolabe *, .hero-bg *, .hero-cloud, .sec-deco, .lotus-frame, .scholar-svg * { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}