/* ============================================================
   TỪ ĐIỂN AI — World-Class Premium Redesign (Dark Glassmorphism)
   Emerald Accent · Plus Jakarta Sans · WCAG AA
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

.m64-glossary {
  --gl-bg: #06080b;
  --gl-bg-2: #090e16;
  --gl-card: rgba(255, 255, 255, 0.03);
  --gl-card-border: rgba(255, 255, 255, 0.06);
  --gl-card-hover: rgba(52, 211, 153, 0.32);
  --gl-text: #e2e8f0;
  --gl-dim: #94a3b8;
  --gl-faint: #64748b;
  --gl-emerald: #34d399;
  --gl-emerald-2: #14b8a6;
  --gl-violet: #a78bfa;
  --gl-gold: #fbbf24;
  --gl-radius: 16px;
  --gl-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --gl-body: 'Inter', system-ui, sans-serif;
}
.m64-glossary {
  background:
    radial-gradient(1000px 500px at 85% -5%, rgba(52, 211, 153, 0.07), transparent 60%),
    radial-gradient(800px 400px at 5% 5%, rgba(168, 85, 247, 0.05), transparent 55%),
    var(--gl-bg);
  color: var(--gl-text);
  font-family: var(--gl-body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.gl-hero {
  position: relative; padding: 110px 24px 70px; text-align: center; overflow: hidden;
  background: linear-gradient(160deg,rgba(6,8,15,.9),rgba(7,21,51,.8)),url('../images/cicc-ai-glossary-hero.webp') center/cover no-repeat;
}
.gl-hero::before {
  content: ''; position: absolute; top: -20%; right: 15%;
  width: 540px; height: 540px;
  background: radial-gradient(circle, rgba(168,85,247,0.1), transparent 65%);
  animation: glFloat 15s ease-in-out infinite alternate; pointer-events: none;
}
@keyframes glFloat { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(25px,-20px) scale(1.08); } }
.gl-hero::after {
  content: ''; position: absolute; bottom: -18%; left: 8%;
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(52,211,153,0.07), transparent 65%);
  animation: glFloat 18s ease-in-out infinite alternate-reverse; pointer-events: none;
}
.gl-hero__inner { position: relative; z-index: 2; max-width: 820px; margin: 0 auto; }
.gl-hero__badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 20px; margin-bottom: 22px;
  background: rgba(168, 85, 247, 0.12); border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 100px; font: 600 13px var(--gl-body); color: #a78bfa; backdrop-filter: blur(8px);
}
.gl-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: #a78bfa; animation: glPulse 2.5s ease-in-out infinite; }
@keyframes glPulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .4; transform: scale(1.5); } }
.gl-hero__title { font: 800 clamp(34px,5vw,56px) var(--gl-font); line-height: 1.06; letter-spacing: -.04em; color: #fff; margin: 0 0 14px; }
.gl-hero__title-accent { background: linear-gradient(135deg, #34d399 0%, #14b8a6 40%, #a78bfa 70%, #fbbf24 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.gl-hero__desc { font-size: 16.5px; line-height: 1.7; color: var(--gl-dim); max-width: 620px; margin: 0 auto 34px; }
.gl-hero__desc strong { color: #e2e8f0; }
.gl-hero__stats { display: flex; justify-content: center; gap: 38px; flex-wrap: wrap; }
.gl-stat { text-align: center; }
.gl-stat__num { display: block; font: 800 28px var(--gl-font); background: linear-gradient(135deg, #fff, #94a3b8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.gl-stat__label { font: 500 12px var(--gl-body); text-transform: uppercase; letter-spacing: .08em; color: var(--gl-faint); margin-top: 2px; }
.gl-sep { width: 1px; background: rgba(255,255,255,0.07); align-self: stretch; }

/* ===== SEARCH ===== */
.gl-search { position: relative; max-width: 620px; margin: 0 auto 32px; }
.gl-search__icon { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--gl-faint); pointer-events: none; }
.gl-search__input {
  width: 100%; padding: 15px 140px 15px 48px; border-radius: 16px;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); color: var(--gl-text);
  font-size: 14.5px; font-family: var(--gl-body); outline: none; transition: all .3s ease; backdrop-filter: blur(12px);
}
.gl-search__input::placeholder { color: #64748b; }
.gl-search__input:focus { border-color: rgba(168,85,247,.4); box-shadow: 0 0 0 4px rgba(168,85,247,.08), 0 18px 36px rgba(0,0,0,.3); }
.gl-search__kbd { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); display: flex; gap: 4px; }
.gl-search__kbd span { padding: 4px 10px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); border-radius: 6px; font-size: 12px; color: var(--gl-faint); }

/* ===== ALPHABET NAV ===== */
.gl-alpha {
  max-width: 1100px; margin: 0 auto; padding: 0 24px 8px; display: flex; gap: 6px; flex-wrap: wrap; justify-content: center;
}
.gl-alpha a {
  width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font: 600 13px var(--gl-font); text-decoration: none;
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
  color: var(--gl-dim); cursor: pointer; transition: all .22s ease;
}
.gl-alpha a:hover { color: #fff; border-color: rgba(255,255,255,.18); }
.gl-alpha a.active { background: rgba(168,85,247,.18); border-color: rgba(168,85,247,.4); color: #a78bfa; }
.gl-alpha a.disabled { opacity: .25; pointer-events: none; }

/* ===== CATEGORY TABS ===== */
.gl-cat-tabs { max-width: 1100px; margin: 0 auto; padding: 0 24px 20px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.gl-cat-tab {
  padding: 9px 20px; border-radius: 100px; font: 600 13px var(--gl-body);
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
  color: var(--gl-dim); cursor: pointer; transition: all .22s ease; white-space: nowrap;
}
.gl-cat-tab:hover { color: #fff; border-color: rgba(255,255,255,.16); }
.gl-cat-tab.active { background: rgba(168,85,247,.16); border-color: rgba(168,85,247,.4); color: #a78bfa; }
.gl-cat-tab .count { opacity: .55; font-size: 11px; margin-left: 6px; }

/* ===== SECTION ===== */
.gl-section { max-width: 1100px; margin: 0 auto; padding: 0 24px 40px; scroll-margin-top: 78px; }
.gl-section-title {
  font: 700 17px var(--gl-font); color: #e2e8f0; margin: 0 0 18px; display: inline-flex; align-items: center; gap: 11px;
}
.gl-letter-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 9px; background: rgba(52,211,153,.12);
  color: var(--gl-emerald); font: 700 14px var(--gl-font); border: 1px solid rgba(52,211,153,.18);
}

/* ===== TERM GRID ===== */
.gl-terms-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; max-width: 1100px; margin: 0 auto; padding: 0 24px 56px; }
@media (max-width: 720px) { .gl-terms-grid { grid-template-columns: 1fr; gap: 12px; } }

.gl-term-card {
  position: relative; background: var(--gl-card);
  border: 1px solid var(--gl-card-border); border-radius: var(--gl-radius);
  padding: 18px; transition: all .32s cubic-bezier(.4,0,.2,1);
  animation: glCardIn .42s ease-out backwards; cursor: pointer;
}
@keyframes glCardIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.gl-term-card:hover { transform: translateY(-4px); border-color: var(--gl-card-hover); box-shadow: 0 16px 32px rgba(0,0,0,.35), 0 0 0 1px rgba(52,211,153,.08); }
.gl-term-card__glow {
  position: absolute; inset: 0; border-radius: var(--gl-radius);
  background: radial-gradient(220px 160px at 50% 0%, rgba(52,211,153,0.06), transparent 65%);
  opacity: 0; transition: opacity .32s; pointer-events: none;
}
.gl-term-card:hover .gl-term-card__glow { opacity: 1; }

.gl-term-card__badge { display: inline-flex; padding: 3px 10px; border-radius: 7px; font: 600 10.5px var(--gl-body); background: rgba(168,85,247,.1); color: #a78bfa; border: 1px solid rgba(168,85,247,.18); margin-bottom: 10px; }
.gl-term-card__title { font: 700 15px var(--gl-font); line-height: 1.35; color: #f1f5f9; margin: 0 0 4px; }
.gl-term-card__vi { font-size: 12.5px; font-style: italic; color: var(--gl-dim); margin: 0 0 8px; }
.gl-term-card__excerpt { font-size: 12.5px; line-height: 1.55; color: var(--gl-faint); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.gl-term-card__cta { display: inline-flex; align-items: center; gap: 4px; font-size: 12.5px; font-weight: 600; color: var(--gl-emerald); margin-top: 12px; }

.gl-cat-section { margin-bottom: 44px; }

/* ===== MODAL ===== */
.gl-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 9999;
  backdrop-filter: blur(4px); display: none; align-items: flex-start; padding: 32px 14px; overflow-y: auto;
}
.gl-modal.active { display: flex; }
.gl-modal__panel {
  background: var(--gl-bg-2); border: 1px solid var(--gl-card-border);
  border-radius: var(--gl-radius); max-width: 700px; width: 100%; padding: 24px; position: relative; margin: 0 auto;
  box-shadow: 0 32px 60px rgba(0,0,0,.45);
}
.gl-modal__close {
  position: absolute; top: 16px; right: 16px; width: 36px; height: 36px;
  border-radius: 50%; border: none; background: rgba(255,255,255,.06); color: var(--gl-dim);
  cursor: pointer; font-size: 18px; transition: all .2s;
}
.gl-modal__close:hover { color: #fff; background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.2); }
.gl-modal .cat-badge { background: rgba(168,85,247,.12); color: #a78bfa; }
.gl-modal h2 { font: 700 20px var(--gl-font); color: #fff; margin: 0 0 4px; }
.gl-modal .vi-title { font-size: 13px; color: var(--gl-dim); font-style: italic; margin: 0 0 12px; }
.gl-modal__body { font-size: 13.5px; line-height: 1.7; color: var(--gl-dim); }

/* RESPONSIVE */
@media (max-width: 560px) {
  .gl-hero { padding: 88px 16px 52px; }
  .gl-hero__stats { gap: 24px; }
  .gl-stat__num { font-size: 24px; }
  .gl-alpha a { width: 34px; height: 34px; font-size: 12px; }
  .gl-section, .gl-terms-grid { padding-left: 16px; padding-right: 16px; }
}

/* ===== EDITORIAL UX LAYER ===== */
.m64-glossary .glossary-seo { padding: 56px 24px 18px; background: linear-gradient(180deg,#070b12 0%,#080d14 100%); }
.m64-glossary .glossary-seo__container { max-width: 1100px!important; padding: 0!important; }
.m64-glossary .glossary-seo__container > h2 { max-width: 760px; margin: 0 auto 14px!important; text-align:center; font-size:clamp(24px,3vw,36px)!important; color:#f8fafc!important; }
.m64-glossary .glossary-seo__container > .gl-editorial-lead { max-width: 700px; margin:0 auto 30px; text-align:center; color:#aab7c9; font-size:16px; line-height:1.75; }
.m64-glossary .gl-editorial-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin:28px 0 30px; }
.m64-glossary .gl-editorial-card { padding:22px; border:1px solid rgba(255,255,255,.09); border-radius:18px; background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.025)); box-shadow:0 12px 28px rgba(0,0,0,.18); }
.m64-glossary .gl-editorial-card__icon { display:grid; place-items:center; width:42px; height:42px; margin-bottom:16px; border-radius:13px; background:linear-gradient(135deg,rgba(52,211,153,.18),rgba(167,139,250,.18)); font-size:21px; }
.m64-glossary .gl-editorial-card h3 { margin:0 0 8px; font:700 16px/1.35 var(--gl-font); color:#f8fafc; }
.m64-glossary .gl-editorial-card p { margin:0!important; color:#9aa9bb; font-size:13.5px; line-height:1.65; }
.m64-glossary .gl-editorial-steps { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; margin:0 0 8px; padding:0; list-style:none; }
.m64-glossary .gl-editorial-steps li { display:flex; gap:10px; padding:13px 14px; border-radius:12px; background:rgba(52,211,153,.06); color:#b8c5d5; font-size:13px; line-height:1.55; }
.m64-glossary .gl-editorial-steps b { color:#34d399; font-size:12px; }
.m64-glossary .glossary-seo__container > .gl-editorial-note { margin:28px 0 0!important; padding:16px 18px; border-left:3px solid #a78bfa; border-radius:0 12px 12px 0; background:rgba(167,139,250,.08); color:#c3cce0; font-size:13.5px; line-height:1.65; }
@media (max-width:760px){.m64-glossary .gl-editorial-grid,.m64-glossary .gl-editorial-steps{grid-template-columns:1fr}.m64-glossary .glossary-seo{padding:40px 16px 12px}.m64-glossary .glossary-seo__container > .gl-editorial-lead{font-size:14px}}