/* Design tokens - mirror src/index.css */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;600;700&family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

:root {
  --background: 110 30% 97%;
  --foreground: 130 30% 12%;
  --card: 0 0% 100%;
  --card-foreground: 130 30% 12%;
  --primary: 120 44% 30%;
  --primary-foreground: 0 0% 100%;
  --secondary: 110 30% 92%;
  --secondary-foreground: 130 30% 12%;
  --muted: 110 20% 94%;
  --muted-foreground: 120 10% 40%;
  --accent: 43 55% 54%;
  --accent-foreground: 0 0% 100%;
  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 100%;
  --border: 120 20% 88%;
  --input: 120 20% 88%;
  --ring: 120 44% 30%;
  --radius: 0.75rem;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: 'Noto Sans TC', sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { font-family: 'Noto Serif TC', serif; }

/* helpers - bridge tailwind-ish utilities */
.health-gradient { background: linear-gradient(135deg, hsl(var(--primary)), hsl(120 40% 55%)); }
.gold-gradient { background: linear-gradient(135deg, hsl(var(--accent)), hsl(45 70% 80%)); }
.bg-card { background-color: hsl(var(--card)); }
.bg-background { background-color: hsl(var(--background)); }
.bg-secondary { background-color: hsl(var(--secondary)); }
.bg-secondary\/30 { background-color: hsl(var(--secondary) / 0.3); }
.bg-muted { background-color: hsl(var(--muted)); }
.bg-primary { background-color: hsl(var(--primary)); }
.bg-primary\/10 { background-color: hsl(var(--primary) / 0.1); }
.bg-primary\/80 { background-color: hsl(var(--primary) / 0.8); }
.bg-accent { background-color: hsl(var(--accent)); }
.bg-destructive { background-color: hsl(var(--destructive)); }
.bg-foreground { background-color: hsl(var(--foreground)); }
.text-card { color: hsl(var(--card)); }
.text-foreground { color: hsl(var(--foreground)); }
.text-muted-foreground { color: hsl(var(--muted-foreground)); }
.text-primary { color: hsl(var(--primary)); }
.text-primary-foreground { color: hsl(var(--primary-foreground)); }
.text-accent { color: hsl(var(--accent)); }
.text-accent-foreground { color: hsl(var(--accent-foreground)); }
.text-destructive { color: hsl(var(--destructive)); }
.border-border { border-color: hsl(var(--border)); }
.border-primary { border-color: hsl(var(--primary)); }
.border-accent { border-color: hsl(var(--accent)); }

.font-serif { font-family: 'Noto Serif TC', serif; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.topbar { background: hsl(var(--primary)); color: rgba(255,255,255,.8); font-size: 12px; padding: 6px 20px; display: flex; justify-content: flex-end; gap: 20px; }

/* Footer */
.site-footer { background: hsl(var(--foreground)); color: rgba(255,255,255,.6); }
.site-footer .inner { max-width: 1200px; margin: 0 auto; padding: 48px 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
@media (max-width: 900px) { .site-footer .inner { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .site-footer .inner { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-weight: 700; margin: 0 0 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer ul li { margin: 8px 0; font-size: 14px; }
.site-footer a { color: rgba(255,255,255,.6); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .copy { border-top: 1px solid rgba(255,255,255,.1); text-align: center; padding: 16px; font-size: 12px; color: rgba(255,255,255,.4); }

.back-to-top { position: fixed; bottom: 24px; right: 24px; width: 40px; height: 40px; border-radius: 999px; background: linear-gradient(135deg, hsl(var(--primary)), hsl(120 40% 55%)); color: #fff; border: 0; box-shadow: 0 4px 12px rgba(0,0,0,.2); cursor: pointer; z-index: 40; display: flex; align-items: center; justify-content: center; transition: transform .2s; }
.back-to-top:hover { transform: scale(1.1); }

/* Hero */
.hero { position: relative; overflow: hidden; height: 480px; }
@media (min-width: 768px) { .hero { height: 520px; } }
.hero .slide { position: absolute; inset: 0; opacity: 0; transition: opacity .7s; }
.hero .slide.active { opacity: 1; z-index: 10; }
.hero .slide img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero .slide .overlay { position: absolute; inset: 0; background: rgba(0,0,0,.4); }
.hero .content { position: relative; z-index: 20; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 24px; color: #fff; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 700; margin: 0 0 16px; text-shadow: 0 2px 8px rgba(0,0,0,.3); }
.hero .subtitle { font-size: 18px; opacity: .85; margin-bottom: 28px; letter-spacing: 0.1em; }
.hero .tag { display: inline-block; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.2); padding: 6px 16px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .15em; margin-bottom: 16px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.hero-actions a { padding: 12px 24px; border-radius: 8px; font-weight: 600; text-decoration: none; }
.hero-actions .primary { background: #fff; color: hsl(var(--primary)); }
.hero-actions .ghost { border: 2px solid rgba(255,255,255,.7); color: #fff; }
.hero .dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 30; }
.hero .dots button { width: 12px; height: 12px; border-radius: 999px; border: 0; background: rgba(255,255,255,.4); cursor: pointer; transition: .2s; }
.hero .dots button.active { background: #fff; transform: scale(1.1); }
.hero .nav-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 999px; background: rgba(0,0,0,.2); color: #fff; border: 0; cursor: pointer; z-index: 30; display: flex; align-items: center; justify-content: center; }
.hero .nav-btn:hover { background: rgba(0,0,0,.4); }
.hero .nav-btn.prev { left: 16px; } .hero .nav-btn.next { right: 16px; }
.hero .ribbon { position: absolute; left: 0; right: 0; bottom: 0; z-index: 20; background: hsl(var(--primary) / .8); backdrop-filter: blur(4px); color: rgba(255,255,255,.85); text-align: center; font-size: 14px; padding: 8px; letter-spacing: .3em; }

/* Sections */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 64px 0; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 28px; margin: 0 0 12px; display: inline-flex; align-items: center; gap: 8px; }
.section-title p { color: hsl(var(--muted-foreground)); margin: 0; }

/* Stats */
.stats-bar { background: linear-gradient(135deg, hsl(var(--primary)), hsl(120 40% 55%)); padding: 32px 0; }
.stats-bar .grid { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; color: #fff; }
@media (max-width: 700px) { .stats-bar .grid { grid-template-columns: repeat(2, 1fr); } }
.stats-bar .num { font-size: 36px; font-weight: 700; }
.stats-bar .label { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 4px; }

/* Cards grid */
.card-grid { display: grid; gap: 24px; }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card-grid.cols-6 { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 1024px) {
  .card-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid.cols-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr; }
  .card-grid.cols-6 { grid-template-columns: repeat(2, 1fr); }
}

.cat-card {
  border-radius: 12px; padding: 20px; text-align: center;
  border: 1px solid hsl(var(--border)); text-decoration: none;
  transition: all .2s; display: block; color: hsl(var(--foreground));
}
.cat-card:hover { box-shadow: 0 8px 20px rgba(0,0,0,.08); transform: translateY(-4px); }
.cat-card .icon { width: 40px; height: 40px; margin: 0 auto 12px; color: hsl(var(--primary)); }
.cat-card h3 { font-size: 14px; font-weight: 700; margin: 0; }

.course-card {
  background: hsl(var(--card)); border-radius: 12px; border: 1px solid hsl(var(--border));
  overflow: hidden; text-decoration: none; color: inherit; transition: all .2s; display: block;
}
.course-card:hover { box-shadow: 0 12px 28px rgba(0,0,0,.1); transform: translateY(-4px); }
.course-card .cover { position: relative; height: 190px; overflow: hidden; background: linear-gradient(135deg, #1a4a1a, #4a9a4a); }
.course-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.course-card:hover .cover img { transform: scale(1.05); }
.course-card .cover .gradient-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.6), transparent); }
.course-card .badge-feat { position: absolute; top: 12px; right: 12px; background: hsl(var(--accent)); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; display: inline-flex; align-items: center; gap: 4px; }
.course-card .body { padding: 20px; }
.course-card .meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.badge { font-size: 12px; padding: 2px 10px; border-radius: 999px; font-weight: 500; }
.bg-green-100 { background: #dcfce7; } .text-green-700 { color: #15803d; }
.bg-orange-100 { background: #ffedd5; } .text-orange-700 { color: #c2410c; }
.bg-red-100 { background: #fee2e2; } .text-red-700 { color: #b91c1c; }
.course-card h3 { font-size: 16px; margin: 8px 0 12px; }
.course-card .info { display: flex; gap: 16px; font-size: 12px; color: hsl(var(--muted-foreground)); margin-bottom: 12px; }
.course-card .price-row { display: flex; align-items: baseline; justify-content: space-between; }
.course-card .price { font-size: 18px; font-weight: 700; color: hsl(var(--primary)); }
.course-card .price-orig { font-size: 14px; color: hsl(var(--muted-foreground)); text-decoration: line-through; margin-left: 8px; }

.btn { display: inline-block; padding: 10px 24px; border-radius: 8px; font-weight: 600; text-decoration: none; cursor: pointer; border: 0; font-family: inherit; }
.btn-primary { background: linear-gradient(135deg, hsl(var(--primary)), hsl(120 40% 55%)); color: #fff; }
.btn-outline { background: transparent; border: 2px solid hsl(var(--primary)); color: hsl(var(--primary)); }
.btn-outline:hover { background: hsl(var(--primary)); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* Article / news cards */
.news-card { background: hsl(var(--card)); border: 1px solid hsl(var(--border)); border-radius: 12px; padding: 24px; text-decoration: none; color: inherit; transition: all .2s; display: block; }
.news-card:hover { box-shadow: 0 8px 20px rgba(0,0,0,.08); transform: translateY(-4px); }

.encyc-card { background: hsl(var(--card)); border: 1px solid hsl(var(--border)); border-radius: 12px; overflow: hidden; text-decoration: none; color: inherit; transition: all .2s; display: block; }
.encyc-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.06); }
.encyc-card .cover { width: 100%; height: 160px; object-fit: cover; background: hsl(var(--primary) / .1); }
.encyc-card .body { padding: 16px; }

/* Forms */
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: hsl(var(--foreground)); }
.input, .textarea, .select { width: 100%; padding: 10px 12px; border: 1px solid hsl(var(--input)); border-radius: 8px; background: hsl(var(--card)); font-family: inherit; font-size: 14px; }
.input:focus, .textarea:focus, .select:focus { outline: 0; border-color: hsl(var(--primary)); box-shadow: 0 0 0 2px hsl(var(--primary) / .15); }
.textarea { min-height: 120px; resize: vertical; }

/* Tables (admin) */
.tbl { width: 100%; border-collapse: collapse; background: hsl(var(--card)); border-radius: 12px; overflow: hidden; }
.tbl th, .tbl td { padding: 12px 14px; text-align: left; border-bottom: 1px solid hsl(var(--border)); font-size: 14px; }
.tbl thead th { background: hsl(var(--secondary)); font-weight: 600; }
.tbl tbody tr:hover { background: hsl(var(--secondary) / 0.4); }

/* Admin layout */
.admin-shell { display: flex; min-height: 100vh; }
.admin-side { width: 240px; background: hsl(var(--card)); border-right: 1px solid hsl(var(--border)); padding: 16px 0; }
.admin-side h3 { padding: 0 16px 12px; font-size: 12px; color: hsl(var(--muted-foreground)); text-transform: uppercase; letter-spacing: .1em; margin: 0; }
.admin-side a { display: flex; align-items: center; padding: 10px 16px; font-size: 14px; color: hsl(var(--foreground)); text-decoration: none; border-left: 3px solid transparent; }
.admin-side a:hover { background: hsl(var(--secondary)); }
.admin-side a.active { background: hsl(var(--secondary)); color: hsl(var(--primary)); border-left-color: hsl(var(--primary)); font-weight: 500; }
.admin-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.admin-header { height: 56px; background: hsl(var(--card)); border-bottom: 1px solid hsl(var(--border)); display: flex; align-items: center; padding: 0 24px; }
.admin-content { flex: 1; padding: 24px; }
.admin-card { background: hsl(var(--card)); border: 1px solid hsl(var(--border)); border-radius: 12px; padding: 24px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.flash.success { background: #dcfce7; color: #15803d; }
.flash.error { background: #fee2e2; color: #b91c1c; }

.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 24px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid hsl(var(--border)); border-radius: 6px; text-decoration: none; color: hsl(var(--foreground)); font-size: 14px; }
.pagination .current { background: hsl(var(--primary)); color: #fff; border-color: hsl(var(--primary)); }

.icon { width: 16px; height: 16px; vertical-align: middle; display: inline-block; }
.icon-lg { width: 28px; height: 28px; }

.featured-product { background: linear-gradient(135deg, #fffbeb, #fff7ed, #fefce8); padding: 64px 0; }
.featured-product .panel { max-width: 1100px; margin: 0 auto; background: #fff; border-radius: 16px; box-shadow: 0 12px 28px rgba(0,0,0,.08); overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; }
@media (max-width: 800px) { .featured-product .panel { grid-template-columns: 1fr; } }
.featured-product .panel img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 1/1; }
.featured-product .body { padding: 40px; display: flex; flex-direction: column; justify-content: center; }

/* ============================================================
   v2 — React-parity header/footer/scroll-top
   ============================================================ */

/* Top bar */
.topbar{background:hsl(var(--primary));color:rgba(255,255,255,.88);font-size:12px;padding:6px 20px;display:flex;justify-content:flex-end;gap:20px;flex-wrap:wrap}
.topbar span{display:inline-flex;align-items:center;gap:4px}

/* Header */
.site-header{background:hsl(var(--card));position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.hdr-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;height:76px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand img{width:56px;height:56px;object-fit:contain}
.brand-text{display:flex;flex-direction:column}
.brand-name{font-family:'Noto Serif TC',serif;font-weight:900;font-size:17px;letter-spacing:.06em;color:hsl(var(--foreground));line-height:1.1}
.brand-sub{font-size:8.5px;font-weight:700;color:hsl(var(--primary));letter-spacing:.18em;margin-top:2px}

.main-nav{flex:1;display:flex;justify-content:center}
.main-nav ul{list-style:none;display:flex;margin:0;padding:0}
.main-nav .nav-item{position:relative}
.nav-link{display:flex;align-items:center;height:76px;padding:0 14px;font-size:14px;color:hsl(var(--foreground));text-decoration:none;transition:color .2s;white-space:nowrap;font-weight:500}
.nav-link:hover,.nav-link.is-active{color:hsl(var(--primary))}
.nav-chev{margin-left:2px}
.nav-dropdown{position:absolute;top:64px;left:0;min-width:170px;background:hsl(var(--card));border-top:3px solid hsl(var(--primary));border-radius:0 0 8px 8px;box-shadow:0 8px 20px rgba(0,0,0,.1);opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .2s;padding:0;list-style:none;z-index:50}
.main-nav .nav-item:hover .nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown a{display:block;padding:10px 16px;font-size:14px;color:hsl(var(--muted-foreground));text-decoration:none;border-bottom:1px solid hsl(var(--border));transition:all .2s}
.nav-dropdown li:last-child a{border-bottom:0}
.nav-dropdown a:hover{background:hsl(var(--secondary));color:hsl(var(--primary));padding-left:20px}

.hdr-right{display:flex;align-items:center;gap:8px;flex-shrink:0}
.search-pill{display:flex;align-items:center;gap:6px;border:1px solid hsl(var(--border));border-radius:999px;padding:0 12px;height:34px;transition:border-color .2s}
.search-pill:focus-within{border-color:hsl(var(--primary))}
.search-pill input{border:0;outline:0;background:transparent;font-size:14px;width:110px;font-family:inherit;color:hsl(var(--foreground))}
.search-pill button{background:hsl(var(--primary));color:#fff;border:0;border-radius:999px;padding:2px 10px;font-size:12px;cursor:pointer}
.user-chip{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:hsl(var(--foreground));white-space:nowrap}

.mobile-toggle{display:none;background:transparent;border:0;cursor:pointer;padding:8px;color:hsl(var(--primary));margin-left:auto}
.mobile-nav{display:none;background:hsl(var(--card));border-top:2px solid hsl(var(--secondary));max-height:calc(100vh - 76px);overflow-y:auto}
.mobile-nav.is-open{display:block}
.mobile-nav-actions{padding:12px;display:flex;gap:8px;align-items:center;border-bottom:1px solid hsl(var(--border))}
.mobile-group{border-bottom:1px solid hsl(var(--border))}
.mobile-group-btn{width:100%;text-align:left;background:transparent;border:0;padding:14px 16px;font-size:14px;color:hsl(var(--foreground));font-weight:500;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-family:inherit}
.mobile-group-btn svg{transition:transform .2s}
.mobile-group.is-open .mobile-group-btn svg{transform:rotate(180deg)}
.mobile-sub{display:none;padding-bottom:8px}
.mobile-group.is-open .mobile-sub{display:block}
.mobile-sub a{display:block;padding:8px 32px;font-size:14px;color:hsl(var(--muted-foreground));text-decoration:none}
.mobile-sub a:hover{color:hsl(var(--primary))}
.mobile-link{display:block;padding:14px 16px;font-size:14px;font-weight:500;color:hsl(var(--foreground));text-decoration:none}
.mobile-link:hover{color:hsl(var(--primary))}

@media (max-width:1023px){.main-nav,.hdr-right{display:none}.mobile-toggle{display:block}}

/* Footer */
.site-footer{background:hsl(var(--foreground));color:rgba(255,255,255,.6)}
.footer-grid{max-width:1200px;margin:0 auto;padding:48px 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
@media (max-width:900px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:540px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand img{width:48px;height:48px;object-fit:contain}
.footer-brand-name{font-family:'Noto Serif TC',serif;font-size:16px;font-weight:700;color:#fff}
.footer-brand-sub{font-size:8px;letter-spacing:.18em;color:rgba(255,255,255,.5);margin-top:2px}
.footer-desc{font-size:14px;line-height:1.6;margin:0 0 16px;color:rgba(255,255,255,.6)}
.footer-info{font-size:14px;color:rgba(255,255,255,.6)}
.footer-info p{display:flex;align-items:center;gap:8px;margin:6px 0}
.footer-info svg{flex-shrink:0}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{color:rgba(255,255,255,.6);transition:color .2s}
.footer-social a:hover{color:#fff}
.site-footer h4{font-family:'Noto Serif TC',serif;color:#fff;font-weight:700;margin:0 0 16px;font-size:15px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer ul li{margin:8px 0;font-size:14px}
.site-footer ul a{color:rgba(255,255,255,.6);text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.site-footer ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);text-align:center;padding:16px;font-size:12px;color:rgba(255,255,255,.4)}

/* Scroll-to-top button */
.scroll-top{position:fixed;bottom:24px;right:24px;width:40px;height:40px;border-radius:9999px;color:#fff;border:0;box-shadow:0 4px 12px rgba(0,0,0,.2);cursor:pointer;z-index:40;display:flex;align-items:center;justify-content:center;transition:transform .2s}
.scroll-top:hover{transform:scale(1.1)}

/* ============================================================
   Home page sections (1:1 React parity)
   ============================================================ */
.hero{position:relative;overflow:hidden;height:480px;background:linear-gradient(135deg,#0d3a0d,#6abf4a)}
@media(min-width:768px){.hero{height:520px}}
.hero-slide{position:absolute;inset:0}
.hero-slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-slide .overlay{position:absolute;inset:0;background:rgba(0,0,0,.4)}
.hero-content{position:relative;z-index:20;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;color:#fff}
.hero-tag{display:inline-block;background:rgba(255,255,255,.15);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.2);padding:6px 16px;border-radius:9999px;font-size:12px;font-weight:600;letter-spacing:.15em;margin-bottom:16px}
.hero-title{font-family:'Noto Serif TC',serif;font-size:clamp(2rem,4vw,3.75rem);font-weight:700;margin:0 0 16px;text-shadow:0 2px 8px rgba(0,0,0,.3);line-height:1.15}
.hero-subtitle{font-size:18px;opacity:.85;margin-bottom:28px;letter-spacing:.1em}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.hero-btn-primary{background:#fff;color:hsl(var(--primary));font-weight:600;padding:12px 24px;border-radius:8px;text-decoration:none;box-shadow:0 4px 12px rgba(0,0,0,.15);transition:opacity .2s}
.hero-btn-primary:hover{opacity:.92}
.hero-btn-ghost{border:2px solid rgba(255,255,255,.7);color:#fff;font-weight:600;padding:12px 24px;border-radius:8px;text-decoration:none;transition:background .2s}
.hero-btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-ribbon{position:absolute;left:0;right:0;bottom:0;z-index:20;background:hsl(var(--primary)/.85);backdrop-filter:blur(4px);color:rgba(255,255,255,.85);text-align:center;font-size:14px;padding:8px;letter-spacing:.3em}

/* Stats bar */
.stats-bar{background:linear-gradient(135deg,hsl(var(--primary)),hsl(120 40% 55%));padding:32px 0}
.stats-bar .grid{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;color:#fff}
@media(max-width:700px){.stats-bar .grid{grid-template-columns:repeat(2,1fr)}}
.stats-num{font-size:36px;font-weight:700}
.stats-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:4px}

/* Section wrapper */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section-muted{background:hsl(var(--muted)/.4)}
.section-secondary{background:hsl(var(--secondary))}
.section-secondary-soft{background:hsl(var(--secondary)/.3)}

/* Category grid (CategoryGrid.tsx) */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
@media(max-width:1023px){.cat-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
.cat-tile{border-radius:12px;padding:20px;text-align:center;border:1px solid hsl(var(--border));text-decoration:none;color:hsl(var(--foreground));transition:all .25s;display:block}
.cat-tile:hover{box-shadow:0 8px 20px rgba(0,0,0,.08);transform:translateY(-4px)}
.cat-tile svg{width:40px;height:40px;color:hsl(var(--primary));margin:0 auto 12px;display:block}
.cat-tile h3{font-size:14px;font-weight:700;margin:0;color:hsl(var(--foreground))}

/* Course cards */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:1023px){.course-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.course-grid{grid-template-columns:1fr}}
.course-card{background:hsl(var(--card));border-radius:12px;border:1px solid hsl(var(--border));overflow:hidden;text-decoration:none;color:inherit;transition:all .25s;display:block}
.course-card:hover{box-shadow:0 12px 28px rgba(0,0,0,.1);transform:translateY(-4px)}
.course-cover{position:relative;height:190px;overflow:hidden}
.course-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.course-card:hover .course-cover img{transform:scale(1.05)}
.course-cover-fallback{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:rgba(255,255,255,.9);font-family:'Noto Serif TC',serif}
.course-cover-fallback svg{width:48px;height:48px;color:rgba(255,255,255,.25);margin-bottom:8px}
.course-grad-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.6),transparent)}
.course-feat-pill{position:absolute;top:12px;right:12px;background:hsl(var(--accent));color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:9999px;display:inline-flex;align-items:center;gap:4px}
.course-cat-label{position:absolute;bottom:12px;left:12px;color:rgba(255,255,255,.9);font-family:'Noto Serif TC',serif;font-size:14px;text-shadow:0 1px 4px rgba(0,0,0,.4)}
.course-body{padding:20px}
.course-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px;color:hsl(var(--muted-foreground))}
.course-title{font-size:16px;font-weight:700;color:hsl(var(--foreground));margin:0 0 12px}
.course-card:hover .course-title{color:hsl(var(--primary))}
.course-info{display:flex;gap:16px;font-size:12px;color:hsl(var(--muted-foreground));margin-bottom:12px}
.course-info span{display:inline-flex;align-items:center;gap:4px}
.course-price-row{display:flex;align-items:center;justify-content:space-between}
.course-price{font-size:18px;font-weight:700;color:hsl(var(--primary))}
.course-price-orig{font-size:14px;color:hsl(var(--muted-foreground));text-decoration:line-through;margin-left:8px}
.lvl-pill{font-size:12px;padding:2px 10px;border-radius:9999px;font-weight:500}
.lvl-beginner{background:#dcfce7;color:#166534}
.lvl-intermediate{background:#ffedd5;color:#9a3412}
.lvl-advanced{background:#fee2e2;color:#991b1b}

/* Featured product */
.featured-product{background:linear-gradient(135deg,#fffbeb,#fff7ed,#fefce8);padding:64px 0}
.product-pill{display:inline-flex;align-items:center;gap:8px;background:#fef3c7;color:#92400e;font-size:14px;font-weight:600;padding:6px 16px;border-radius:9999px;margin-bottom:16px}
.product-panel{max-width:1100px;margin:0 auto;background:#fff;border-radius:16px;box-shadow:0 12px 28px rgba(0,0,0,.08);overflow:hidden;display:grid;grid-template-columns:1fr 1fr}
@media(max-width:800px){.product-panel{grid-template-columns:1fr}}
.product-panel .img-wrap{position:relative;aspect-ratio:1/1}
.product-panel .img-wrap img{width:100%;height:100%;object-fit:cover}
.product-panel .img-wrap .pop{position:absolute;top:16px;left:16px;background:#ef4444;color:#fff;font-size:14px;font-weight:700;padding:4px 12px;border-radius:9999px}
.product-body{padding:40px;display:flex;flex-direction:column;justify-content:center}
.product-tag-line{display:flex;align-items:center;gap:8px;color:hsl(var(--primary));font-size:14px;font-weight:500;margin-bottom:12px}
.product-title{font-family:'Noto Serif TC',serif;font-size:clamp(1.5rem,3vw,1.875rem);font-weight:700;color:hsl(var(--foreground));margin:0 0 16px}
.product-summary{color:hsl(var(--muted-foreground));line-height:1.6;margin:0 0 24px}
.product-price-line{display:flex;align-items:baseline;gap:8px;margin-bottom:24px}
.product-price{font-size:30px;font-weight:700;color:#dc2626}
.product-unit{color:hsl(var(--muted-foreground))}

/* Encyclopedia card */
.encyc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.encyc-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.encyc-grid{grid-template-columns:1fr}}
.encyc-card{background:hsl(var(--background));border:1px solid hsl(var(--border));border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s;display:block}
.encyc-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.06)}
.encyc-cover{width:100%;height:160px;object-fit:cover;display:block;background:hsl(var(--primary)/.1)}
.encyc-cover-empty{width:100%;height:160px;background:hsl(var(--primary)/.1);display:flex;align-items:center;justify-content:center}
.encyc-cover-empty svg{width:40px;height:40px;color:hsl(var(--primary)/.4)}
.encyc-body{padding:16px}
.encyc-cat{display:inline-block;font-size:12px;background:hsl(var(--primary)/.1);color:hsl(var(--primary));padding:2px 10px;border-radius:9999px}
.encyc-title{font-weight:600;margin:8px 0 4px;color:hsl(var(--foreground));line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.encyc-card:hover .encyc-title{color:hsl(var(--primary))}
.encyc-summary{font-size:13px;color:hsl(var(--muted-foreground));margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* News cards */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.news-grid{grid-template-columns:1fr}}
.news-card{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:24px;text-decoration:none;color:inherit;transition:all .25s;display:block}
.news-card:hover{box-shadow:0 8px 20px rgba(0,0,0,.08);transform:translateY(-4px)}
.news-meta{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-size:12px;color:hsl(var(--muted-foreground))}
.news-cat-pill{background:hsl(var(--primary)/.1);color:hsl(var(--primary));padding:4px 10px;border-radius:9999px;font-weight:500}
.news-date{display:inline-flex;align-items:center;gap:4px}
.news-title{font-weight:700;margin:0 0 8px;color:hsl(var(--foreground))}
.news-card:hover .news-title{color:hsl(var(--primary))}
.news-summary{font-size:14px;color:hsl(var(--muted-foreground));line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.center-cta{text-align:center;margin-top:32px}

/* ============================================================
   Phase 2 — Page sections (Courses / News / Encyclopedia / Detail)
   ============================================================ */

/* Page hero — gradient banner used by Courses/News/Encyclopedia */
.page-hero{background:linear-gradient(135deg,hsl(var(--health-green-dark)),hsl(var(--health-green-light)));padding:64px 20px;text-align:center;color:#fff}
.page-hero .hero-icon{display:flex;justify-content:center;margin-bottom:16px}
.page-hero .hero-icon svg{width:48px;height:48px;color:rgba(255,255,255,.8)}
.page-hero h1{font-family:'Noto Serif TC',serif;font-size:clamp(1.875rem,3vw,2.25rem);font-weight:700;margin:0 0 8px}
.page-hero p{margin:0;color:rgba(255,255,255,.7)}

/* Breadcrumb bar */
.crumb-bar{background:hsl(var(--secondary));padding:8px 0}
.crumb-bar .crumb-inner{max-width:1200px;margin:0 auto;padding:0 20px;font-size:14px;color:hsl(var(--muted-foreground))}
.crumb-bar a{color:hsl(var(--muted-foreground));text-decoration:none}
.crumb-bar a:hover{color:hsl(var(--primary))}
.crumb-bar .sep{margin:0 8px}
.crumb-bar .cur{color:hsl(var(--foreground))}

/* Category tab bar (Courses) */
.cat-tab-bar{border-bottom:1px solid hsl(var(--border));background:hsl(var(--card))}
.cat-tab-bar .inner{max-width:1200px;margin:0 auto;padding:0 20px}
.cat-tab-bar .row{display:flex;gap:4px;overflow-x:auto;padding:12px 0}
.cat-tab{white-space:nowrap;padding:8px 16px;border-radius:9999px;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;border:0;cursor:pointer;background:hsl(var(--secondary));color:hsl(var(--muted-foreground));text-decoration:none;transition:background-color .2s,color .2s}
.cat-tab:hover{background:hsl(var(--primary)/.1);color:hsl(var(--primary))}
.cat-tab.active{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}
.cat-tab svg{width:14px;height:14px}

/* Generic page wrapper */
.page-section{padding:32px 0;background:hsl(var(--background));min-height:60vh}
.page-section .wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.page-section .wrap-narrow{max-width:900px;margin:0 auto;padding:0 20px}

/* Result count */
.result-count{font-size:14px;color:hsl(var(--muted-foreground));margin-bottom:24px}
.result-count strong{color:hsl(var(--foreground))}

/* Courses grid */
.courses-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.courses-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.courses-grid{grid-template-columns:1fr}}

/* News list (single col) */
.news-list{display:flex;flex-direction:column;gap:16px}
.news-list .news-card{padding:24px}

/* Course detail */
.course-detail-hero{position:relative;height:300px;overflow:hidden}
@media(min-width:768px){.course-detail-hero{height:360px}}
.course-detail-hero .bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.course-detail-hero .bg-mask{position:absolute;inset:0;background:rgba(0,0,0,.5)}
.course-detail-hero .bg-grad{position:absolute;inset:0;background:linear-gradient(135deg,hsl(var(--health-green-dark)),hsl(var(--health-green-light)))}
.course-detail-hero .inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;color:#fff}
.course-detail-hero .pill{background:rgba(255,255,255,.2);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:9999px;margin-bottom:12px}
.course-detail-hero h1{font-family:'Noto Serif TC',serif;font-size:clamp(1.875rem,3vw,2.25rem);font-weight:700;margin:0 0 8px;text-shadow:0 2px 6px rgba(0,0,0,.3)}
.course-detail-hero .summary{margin:0;color:rgba(255,255,255,.85);max-width:640px}

.detail-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px}
@media(max-width:900px){.detail-grid{grid-template-columns:1fr}}
.back-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;color:hsl(var(--muted-foreground));text-decoration:none;margin-bottom:24px}
.back-link:hover{color:hsl(var(--primary))}
.detail-section h2{font-size:1.25rem;font-weight:700;margin:0 0 12px}
.detail-section p{color:hsl(var(--muted-foreground));line-height:1.7;margin:0 0 24px}
.detail-section .content{color:hsl(var(--foreground));line-height:1.8}
.detail-section .content p{margin:0 0 16px;color:hsl(var(--foreground))}
.detail-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.detail-tags span{background:hsl(var(--secondary));color:hsl(var(--muted-foreground));font-size:12px;padding:4px 12px;border-radius:9999px}

.enroll-card{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:24px;position:sticky;top:24px;display:flex;flex-direction:column;gap:16px}
.enroll-card .price-block{text-align:center}
.enroll-card .price-block .big{font-size:1.875rem;font-weight:700;color:hsl(var(--primary))}
.enroll-card .price-block .orig{font-size:14px;color:hsl(var(--muted-foreground));text-decoration:line-through}
.enroll-card .info-rows{display:flex;flex-direction:column;gap:12px;font-size:14px}
.enroll-card .info-rows .row{display:flex;align-items:center;gap:8px;color:hsl(var(--muted-foreground))}
.enroll-card .info-rows .row svg{width:16px;height:16px;color:hsl(var(--primary));flex-shrink:0}
.enroll-card .btn{width:100%}

/* Encyclopedia layout */
.encyc-layout{display:flex;flex-direction:column;gap:32px}
@media(min-width:1024px){.encyc-layout{flex-direction:row}}
.encyc-side{flex-shrink:0}
@media(min-width:1024px){.encyc-side{width:256px}}
.encyc-side .side-stick{position:sticky;top:16px;display:flex;flex-direction:column;gap:16px}
.encyc-side .panel{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;overflow:hidden}
.encyc-side .panel-head{padding:12px 16px;border-bottom:1px solid hsl(var(--border));background:hsl(var(--muted)/.5);display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600}
.encyc-side .panel-head svg{width:16px;height:16px;color:hsl(var(--primary))}
.encyc-side nav{display:flex;flex-direction:column}
.encyc-side .cat-btn{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;font-size:14px;background:transparent;border:0;border-top:1px solid hsl(var(--border));cursor:pointer;text-align:left;text-decoration:none;color:hsl(var(--foreground));transition:background .15s}
.encyc-side .cat-btn:first-child{border-top:0}
.encyc-side .cat-btn:hover{background:hsl(var(--muted)/.5)}
.encyc-side .cat-btn.active{background:hsl(var(--primary)/.1);color:hsl(var(--primary));font-weight:600}
.encyc-side .cat-btn .lbl{display:inline-flex;align-items:center;gap:8px}
.encyc-side .cat-btn .lbl svg{width:16px;height:16px}
.encyc-side .cat-btn.child{padding-left:40px}

.encyc-main{flex:1;min-width:0}
.search-input-wrap{position:relative;margin-bottom:16px}
.search-input-wrap svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:hsl(var(--muted-foreground))}
.search-input-wrap .input{padding-left:36px}

.tag-panel{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:16px;margin-bottom:16px}
.tag-panel .head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:14px}
.tag-panel .head .lbl{display:flex;align-items:center;gap:8px;font-weight:600}
.tag-panel .head .lbl svg{width:16px;height:16px;color:hsl(var(--primary))}
.tag-panel .head .lbl .hint{color:hsl(var(--muted-foreground));font-weight:400;font-size:12px}
.tag-panel .head .clear{font-size:12px;color:hsl(var(--muted-foreground));background:none;border:0;cursor:pointer;text-decoration:none}
.tag-panel .head .clear:hover{color:hsl(var(--primary))}
.tag-panel .tags{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:9999px;font-size:12px;font-weight:500;border:1px solid hsl(var(--border));background:hsl(var(--muted)/.5);color:hsl(var(--foreground));text-decoration:none;cursor:pointer;transition:all .15s}
.tag-pill:hover{background:hsl(var(--muted));border-color:hsl(var(--primary)/.5)}
.tag-pill.active{background:hsl(var(--primary));color:hsl(var(--primary-foreground));border-color:hsl(var(--primary))}
.tag-pill .cnt{opacity:.6}

.letter-panel{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:16px;margin-bottom:16px}
.letter-panel .head{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-size:14px;font-weight:600}
.letter-panel .head svg{width:16px;height:16px;color:hsl(var(--primary))}
.letter-panel .grid{display:flex;flex-wrap:wrap;gap:4px}
.letter-btn{width:32px;height:32px;border-radius:6px;font-size:12px;font-weight:500;display:inline-flex;align-items:center;justify-content:center;background:hsl(var(--muted)/.5);color:hsl(var(--foreground));border:0;cursor:pointer;text-decoration:none;transition:background .15s}
.letter-btn:hover{background:hsl(var(--muted))}
.letter-btn.active{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}

.filter-info{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;font-size:14px;color:hsl(var(--muted-foreground))}

.article-list{display:flex;flex-direction:column;gap:12px}
.article-card{display:flex;gap:16px;background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:16px;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s}
.article-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.06);transform:translateY(-2px)}
.article-card .thumb{width:80px;height:80px;border-radius:8px;object-fit:cover;flex-shrink:0}
.article-card .thumb-empty{width:80px;height:80px;border-radius:8px;background:hsl(var(--primary)/.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.article-card .thumb-empty svg{width:32px;height:32px;color:hsl(var(--primary)/.3)}
.article-card .body{min-width:0;flex:1}
.article-card .meta{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.article-card .meta .pill{font-size:12px;background:hsl(var(--primary)/.1);color:hsl(var(--primary));padding:2px 8px;border-radius:9999px;font-weight:500}
.article-card .meta .date{font-size:12px;color:hsl(var(--muted-foreground))}
.article-card .title{font-weight:600;margin:0;color:hsl(var(--foreground));white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-card:hover .title{color:hsl(var(--primary))}
.article-card .summary{font-size:14px;color:hsl(var(--muted-foreground));margin:4px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card .tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px}
.article-card .tags span{font-size:10px;background:hsl(var(--muted));padding:2px 6px;border-radius:4px;color:hsl(var(--muted-foreground))}
.article-card .arrow{align-self:center;flex-shrink:0;color:hsl(var(--muted-foreground))}
.article-card .arrow svg{width:20px;height:20px}
.article-card:hover .arrow{color:hsl(var(--primary))}

.cat-section{margin-bottom:32px}
.cat-section .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cat-section .head h2{font-size:1.125rem;font-weight:700;display:inline-flex;align-items:center;gap:8px;margin:0}
.cat-section .head h2 svg{width:20px;height:20px;color:hsl(var(--primary))}
.cat-section .more-link{font-size:14px;color:hsl(var(--primary));text-decoration:none;display:inline-flex;align-items:center;gap:4px;background:none;border:0;cursor:pointer}
.cat-section .more-link:hover{text-decoration:underline}
.cat-section .more-link svg{width:12px;height:12px}

.empty-state{text-align:center;padding:64px 0;color:hsl(var(--muted-foreground))}
.empty-state svg{width:48px;height:48px;margin:0 auto 12px;opacity:.4}

/* ============================================================
   Phase 3 — Admin layout & data table (shadcn-aligned)
   ============================================================ */
.admin-body{margin:0;background:hsl(var(--secondary));color:hsl(var(--foreground));font-family:'Noto Sans TC',system-ui,sans-serif;min-height:100vh}
.admin-shell{display:flex;min-height:100vh}
.admin-side{width:240px;flex-shrink:0;background:hsl(var(--card));border-right:1px solid hsl(var(--border));display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:hidden;transition:width .2s ease}
.admin-shell[data-collapsed] .admin-side{width:64px}
.admin-shell[data-collapsed] .admin-nav-item .lbl,
.admin-shell[data-collapsed] .admin-nav-group-label,
.admin-shell[data-collapsed] .admin-brand-text{display:none}

.admin-brand{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid hsl(var(--border));white-space:nowrap}
.admin-brand-mark{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,hsl(var(--health-green-dark)),hsl(var(--health-green-light)));color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.admin-brand-text{line-height:1.1;overflow:hidden}
.admin-brand-title{font-family:'Noto Serif TC',serif;font-weight:700;font-size:15px;color:hsl(var(--foreground))}
.admin-brand-sub{font-size:11px;color:hsl(var(--muted-foreground));margin-top:2px}

.admin-nav{flex:1;overflow-y:auto;padding:8px 0}
.admin-nav-group{padding:6px 0}
.admin-nav-group-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:hsl(var(--muted-foreground));padding:8px 16px 4px}
.admin-nav-item{display:flex;align-items:center;gap:10px;padding:8px 16px;color:hsl(var(--foreground));text-decoration:none;font-size:13px;border-left:3px solid transparent;transition:background .15s,color .15s}
.admin-nav-item:hover{background:hsl(var(--muted)/.5);color:hsl(var(--primary))}
.admin-nav-item.active{background:hsl(var(--primary)/.1);color:hsl(var(--primary));border-left-color:hsl(var(--primary));font-weight:600}
.admin-nav-item .ic{display:inline-flex;width:20px;justify-content:center;color:currentColor}
.admin-nav-item.destructive{color:hsl(var(--destructive))}
.admin-nav-item.destructive:hover{background:hsl(var(--destructive)/.1)}
.admin-side-foot{border-top:1px solid hsl(var(--border));padding:8px 0}

.admin-main{flex:1;display:flex;flex-direction:column;min-width:0}
.admin-topbar{height:56px;display:flex;align-items:center;gap:12px;padding:0 20px;background:hsl(var(--card));border-bottom:1px solid hsl(var(--border));position:sticky;top:0;z-index:10}
.admin-toggle{background:transparent;border:0;width:32px;height:32px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:hsl(var(--foreground))}
.admin-toggle:hover{background:hsl(var(--muted)/.5)}
.admin-topbar-title{font-weight:600;font-size:15px}
.admin-topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.admin-user{font-size:13px;color:hsl(var(--muted-foreground))}
.admin-user strong{color:hsl(var(--foreground))}

.admin-content{flex:1;padding:24px;background:hsl(var(--secondary));max-width:100%}
.admin-content > .card,.admin-content > .alert,.admin-content > .adm-page-header{margin-bottom:16px}

/* page header */
.adm-page-header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:16px;padding-bottom:12px}
.adm-page-title{font-size:1.5rem;font-weight:700;margin:0;color:hsl(var(--foreground))}
.adm-page-sub{font-size:13px;color:hsl(var(--muted-foreground));margin:4px 0 0}
.adm-page-actions{display:flex;gap:8px;flex-wrap:wrap}

.adm-filter-bar{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:12px 16px;margin-bottom:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.adm-filter-bar form{display:flex;gap:10px;flex-wrap:wrap;align-items:center;flex:1}
.adm-filter-bar .input,.adm-filter-bar .select{height:36px;font-size:13px;max-width:240px}

/* data table */
.adm-table-wrap{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;overflow:hidden}
.adm-table{width:100%;border-collapse:collapse;font-size:13px}
.adm-table thead th{background:hsl(var(--muted)/.4);text-align:left;font-weight:600;padding:10px 14px;border-bottom:1px solid hsl(var(--border));color:hsl(var(--muted-foreground));font-size:12px;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.adm-table tbody td{padding:12px 14px;border-bottom:1px solid hsl(var(--border));vertical-align:middle}
.adm-table tbody tr:last-child td{border-bottom:0}
.adm-table tbody tr:hover{background:hsl(var(--muted)/.25)}
.adm-table .col-num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.adm-table .col-actions{text-align:right;width:120px;white-space:nowrap}
.adm-table .adm-empty{text-align:center;padding:40px 0;color:hsl(var(--muted-foreground))}
.adm-table .thumb-sm{width:40px;height:40px;border-radius:6px;object-fit:cover;background:hsl(var(--muted))}

.adm-row-actions{display:inline-flex;gap:6px}
.adm-row-actions .btn-sm{height:30px;padding:0 8px}

/* form card */
.adm-form-card{margin-bottom:16px}
.adm-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.adm-field-hint{font-size:12px;color:hsl(var(--muted-foreground))}
.adm-field-grid{display:grid;gap:14px 16px}
.adm-field-grid.cols-2{grid-template-columns:1fr 1fr}
.adm-field-grid.cols-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:720px){.adm-field-grid{grid-template-columns:1fr !important}}

/* dashboard cards */
.adm-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1100px){.adm-stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.adm-stat-grid{grid-template-columns:1fr}}
.adm-stat{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:16px 18px;display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.adm-stat .lbl{font-size:13px;color:hsl(var(--muted-foreground));margin-bottom:8px}
.adm-stat .num{font-size:28px;font-weight:700;line-height:1}
.adm-stat .ic{width:36px;height:36px;border-radius:8px;background:hsl(var(--primary)/.1);color:hsl(var(--primary));display:flex;align-items:center;justify-content:center;flex-shrink:0}

/* settings tabs */
.adm-settings-tabs{display:flex;gap:4px;background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:8px;padding:4px;margin-bottom:16px;flex-wrap:wrap}
.adm-settings-tabs a{padding:8px 14px;font-size:13px;border-radius:6px;text-decoration:none;color:hsl(var(--muted-foreground));font-weight:500}
.adm-settings-tabs a.active{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}
.adm-settings-tabs a:not(.active):hover{background:hsl(var(--muted)/.5);color:hsl(var(--foreground))}

/* Login page (redesigned) */
.adm-login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,hsl(var(--health-green-dark)/.1),hsl(var(--health-green-light)/.15));padding:24px}
.adm-login-card{width:100%;max-width:420px;background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:14px;box-shadow:0 12px 32px rgba(0,0,0,.08);padding:36px 32px}
.adm-login-brand{text-align:center;margin-bottom:24px}
.adm-login-brand .mark{display:inline-flex;width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,hsl(var(--health-green-dark)),hsl(var(--health-green-light)));color:#fff;align-items:center;justify-content:center;margin-bottom:12px}
.adm-login-brand .title{font-family:'Noto Serif TC',serif;font-size:1.25rem;font-weight:700;color:hsl(var(--foreground))}
.adm-login-brand .sub{font-size:13px;color:hsl(var(--muted-foreground));margin-top:4px}

/* media library grid */
.media-shell{display:grid;grid-template-columns:240px 1fr;gap:16px}
@media(max-width:900px){.media-shell{grid-template-columns:1fr}}
.media-folders{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:8px}
.media-folders h4{margin:6px 8px;font-size:12px;text-transform:uppercase;color:hsl(var(--muted-foreground));font-weight:600;letter-spacing:.05em}
.media-folder-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:6px;font-size:13px;color:hsl(var(--foreground));text-decoration:none;cursor:pointer;border:0;background:transparent;width:100%;text-align:left}
.media-folder-item:hover{background:hsl(var(--muted)/.5)}
.media-folder-item.active{background:hsl(var(--primary)/.1);color:hsl(var(--primary));font-weight:600}
.media-area{background:hsl(var(--card));border:1px solid hsl(var(--border));border-radius:12px;padding:16px;min-height:400px}
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:12px}
.media-tile{position:relative;aspect-ratio:1;border-radius:8px;overflow:hidden;background:hsl(var(--muted));border:1px solid hsl(var(--border))}
.media-tile img{width:100%;height:100%;object-fit:cover;display:block}
.media-tile .name{position:absolute;left:0;right:0;bottom:0;padding:6px 8px;background:linear-gradient(to top,rgba(0,0,0,.7),transparent);color:#fff;font-size:11px;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-tile .del{position:absolute;top:6px;right:6px;background:rgba(0,0,0,.5);color:#fff;border:0;width:24px;height:24px;border-radius:50%;cursor:pointer;display:none;align-items:center;justify-content:center}
.media-tile:hover .del{display:inline-flex}

/* ===== Admin v3.2 — courses/news/teachers/enrollments ===== */
.adm-summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:12px;background:hsl(var(--muted)/.4);border:1px solid hsl(var(--border));border-radius:8px;margin-bottom:12px}
.adm-summary-grid > div{display:flex;flex-direction:column;gap:2px;font-size:13px}
.adm-summary-grid .adm-k{color:hsl(var(--muted-foreground));font-size:11px}
.adm-summary-grid .adm-v{font-weight:500;color:hsl(var(--foreground))}
.adm-readonly{padding:10px;background:hsl(var(--muted)/.4);border-radius:6px;font-size:13px;line-height:1.6;color:hsl(var(--foreground))}
.switch-row{display:inline-flex;align-items:center;gap:8px;font-size:14px;cursor:pointer;user-select:none}
.switch-row input[type=checkbox]{width:36px;height:20px;appearance:none;background:hsl(var(--input));border-radius:999px;position:relative;cursor:pointer;transition:background .15s}
.switch-row input[type=checkbox]:checked{background:hsl(var(--primary))}
.switch-row input[type=checkbox]::before{content:'';position:absolute;left:2px;top:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .15s}
.switch-row input[type=checkbox]:checked::before{transform:translateX(16px)}
.adm-table .mono{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:hsl(var(--muted-foreground))}
.adm-table .muted{color:hsl(var(--muted-foreground));font-size:13px}
.adm-table .xs{font-size:11px;margin-top:2px}
.adm-table td.truncate{max-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.adm-table td.text-right,.adm-table th.text-right{text-align:right}
.adm-row-actions{display:inline-flex;gap:4px;align-items:center;justify-content:flex-end}
.badge.badge-warning{background:hsl(45 93% 90%);color:hsl(28 80% 30%);border:1px solid hsl(45 93% 80%)}
.badge.badge-soft{background:hsl(var(--primary)/.12);color:hsl(var(--primary));border:1px solid hsl(var(--primary)/.2)}
.badge.badge-success{background:hsl(140 60% 92%);color:hsl(140 60% 25%);border:1px solid hsl(140 60% 80%)}
.badge.badge-secondary{background:hsl(var(--muted));color:hsl(var(--muted-foreground));border:1px solid hsl(var(--border))}
.badge.badge-destructive{background:hsl(0 80% 95%);color:hsl(0 70% 40%);border:1px solid hsl(0 70% 85%)}
.badge.badge-outline{background:transparent;color:hsl(var(--foreground));border:1px solid hsl(var(--border))}
.adm-filter-bar{display:flex;align-items:center;gap:12px;padding:12px 0;flex-wrap:wrap}