/* ==========================================================================
   MUSE AI WORKSHOP — landing
   Nhận diện đồng bộ với trailer 30s: tối (nỗi đau) → xanh (kết quả) → trắng (giải pháp)
   Font: Plus Jakarta Sans + JetBrains Mono
   ========================================================================== */

:root {
  --ink: #0b1220;
  --ink-2: #0f172a;
  --ink-3: #1e293b;
  --paper: #f8fafc;
  --white: #ffffff;
  --line: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;

  --blue: #0066ff;
  --blue-d: #0052cc;
  --neon: #00d2ff;
  --violet: #6d28d9;
  --indigo: #4338ca;
  --red: #ef4444;
  --gold: #f5a524;
  --gold-soft: #fde68a;
  --yellow: #fde047;
  --green: #16a34a;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --shadow-1: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-2: 0 24px 60px rgba(15, 23, 42, 0.14);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  --container: 1200px;
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  background: var(--paper);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
s { text-decoration-thickness: 2px; text-decoration-color: var(--red); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- type ---------- */
.kicker { display: inline-flex; align-items: center; gap: 10px; font-size: 0.8rem; font-weight: 700; color: var(--blue); }
.kicker-red { color: #fca5a5; }
.kicker-light { color: #c7d2fe; }
.kicker-gold { color: var(--gold); }
.display {
  font-size: clamp(2.6rem, 6.4vw, 5.2rem);
  font-weight: 800; line-height: 1.04; letter-spacing: -0.045em;
}
.display-sm { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.h2 { font-size: clamp(2rem, 4.2vw, 3.2rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.035em; }
.lead { font-size: clamp(1.02rem, 1.4vw, 1.15rem); color: var(--text-2); max-width: 620px; }
.section-head { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head-left { text-align: left; align-items: flex-start; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; font-weight: 700; font-size: 0.98rem;
  text-decoration: none; white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s;
}
.btn:active { transform: scale(0.97); }
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-lg { padding: 18px 30px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 12px 30px rgba(0, 102, 255, 0.32); }
.btn-primary:hover { background: var(--blue-d); transform: translateY(-2px); box-shadow: 0 18px 40px rgba(0, 102, 255, 0.38); }
.btn-ghost { background: var(--white); color: var(--text); box-shadow: inset 0 0 0 1.5px var(--line), var(--shadow-1); }
.btn-ghost:hover { transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--indigo); box-shadow: 0 12px 30px rgba(10, 10, 60, 0.25); }
.btn-white:hover { transform: translateY(-2px); }
.play-dot { width: 28px; height: 28px; border-radius: 50%; background: var(--blue); color: #fff; display: grid; place-items: center; }
.play-dot svg { margin-left: 2px; }
.btn-white .play-dot { background: var(--indigo); }
.link-play { align-self: flex-start; margin-top: 18px; color: var(--blue); font-weight: 700; font-size: 0.95rem; padding: 0; }
.link-play:hover { text-decoration: underline; }

.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 0 rgba(239, 68, 68, .6); animation: pulse 1.8s infinite; flex: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); } 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); } }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .wall-track { animation: none !important; }
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h);
  display: flex; align-items: center;
  transition: background .3s, box-shadow .3s, backdrop-filter .3s;
}
.site-header.scrolled { background: rgba(248, 250, 252, 0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
.nav-wrapper { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; letter-spacing: -0.01em; }
.logo-badge { width: 32px; height: 32px; border-radius: 10px; background: var(--blue); color: #fff; display: grid; place-items: center; }
.nav-links { display: flex; gap: 6px; list-style: none; }
.nav-links a { text-decoration: none; font-weight: 600; font-size: 0.93rem; color: var(--text-2); padding: 8px 14px; border-radius: 999px; transition: background .2s, color .2s; }
.nav-links a:hover { background: rgba(15, 23, 42, 0.05); color: var(--text); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(2.5rem, 6vw, 5rem)) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(900px 520px at 85% 20%, rgba(0, 102, 255, 0.12), transparent 60%),
    radial-gradient(700px 400px at 5% 90%, rgba(0, 210, 255, 0.10), transparent 60%),
    var(--paper);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(15, 23, 42, 0.09) 1.3px, transparent 1.3px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, #000 40%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px; border-radius: 999px;
  background: #fff; box-shadow: inset 0 0 0 1px var(--line); font-size: 0.88rem; font-weight: 600; color: var(--text-2);
}
.hero-title {
  margin-top: 22px;
  font-size: clamp(2.5rem, 5.6vw, 4.6rem);
  font-weight: 800; line-height: 1.04; letter-spacing: -0.045em;
}
.hero-title .hl {
  color: var(--blue);
  background: linear-gradient(transparent 62%, rgba(0, 210, 255, 0.28) 62%, rgba(0, 210, 255, 0.28) 92%, transparent 92%);
}
.hero-sub { margin-top: 20px; font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--text-2); max-width: 540px; }
.hero-price { margin-top: 28px; display: flex; align-items: center; gap: 18px; }
.price-now { font-size: clamp(2rem, 3.6vw, 2.6rem); font-weight: 800; letter-spacing: -0.04em; color: var(--blue); line-height: 1; }
.price-meta { display: flex; flex-direction: column; font-size: 0.9rem; color: var(--text-3); line-height: 1.4; }
.price-meta s { font-weight: 700; color: var(--text-3); }
.hero-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-facts { margin-top: 36px; display: flex; gap: 32px; list-style: none; padding-top: 24px; border-top: 1px solid var(--line); }
.hero-facts li { display: flex; flex-direction: column; font-size: 0.88rem; color: var(--text-3); line-height: 1.35; }
.hero-facts b { font-size: 1.05rem; color: var(--text); }

/* phones stack */
.hero-stage { position: relative; height: clamp(460px, 48vw, 600px); }
.phone {
  position: absolute; aspect-ratio: 9 / 16; border-radius: 34px; padding: 8px;
  background: #0b1220; box-shadow: 0 40px 80px rgba(15, 23, 42, 0.28), inset 0 0 0 1.5px rgba(255, 255, 255, 0.12);
}
.phone video { width: 100%; height: 100%; object-fit: cover; border-radius: 27px; background: #111827; }
.phone-front { height: 92%; left: 50%; top: 4%; transform: translateX(-50%); z-index: 3; animation: bob 6s ease-in-out infinite; }
.phone-back { height: 74%; top: 14%; z-index: 1; filter: saturate(0.9); }
.phone-left { left: 2%; transform: rotate(-8deg); }
.phone-right { right: 2%; transform: rotate(8deg); }
@keyframes bob { 50% { transform: translateX(-50%) translateY(-10px); } }
.float-chip {
  position: absolute; z-index: 4; display: flex; align-items: center; gap: 10px;
  background: #fff; border-radius: 16px; padding: 12px 16px; box-shadow: var(--shadow-2);
  font-size: 0.93rem; white-space: nowrap;
}
.chip-proof { left: -2%; bottom: 14%; animation: floaty 7s ease-in-out infinite; }
.chip-seed { right: -2%; top: 10%; animation: floaty 8s ease-in-out -2s infinite; }
.chip-seed .mono { background: var(--ink); color: #fff; font-size: 0.75rem; padding: 3px 7px; border-radius: 6px; }
.chip-ic { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; }
.chip-ic.ok { background: #dcfce7; color: var(--green); }
@keyframes floaty { 50% { transform: translateY(-8px); } }

/* ==========================================================================
   VIDEO WALL
   ========================================================================== */
.wall { padding: 12px 0 clamp(3rem, 6vw, 5rem); background: var(--paper); overflow: hidden; }
.wall-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.wall-note { font-size: 0.88rem; color: var(--text-3); }
.wall-track { display: flex; gap: 16px; width: max-content; animation: marquee 60s linear infinite; }
.wall:hover .wall-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.wall-card { position: relative; width: 190px; aspect-ratio: 9 / 16; border-radius: 20px; overflow: hidden; background: #111827; box-shadow: var(--shadow-1); flex: none; }
.wall-card video { width: 100%; height: 100%; object-fit: cover; }
.wall-card .mono { position: absolute; right: 10px; top: 10px; font-size: 0.7rem; font-weight: 700; color: #fff; background: rgba(0, 0, 0, 0.55); padding: 3px 7px; border-radius: 6px; letter-spacing: 0.04em; }
.wall-card .label { position: absolute; left: 10px; right: 10px; bottom: 10px; font-size: 0.78rem; font-weight: 700; color: #fff; text-shadow: 0 1px 8px rgba(0, 0, 0, .6); line-height: 1.3; }

/* ==========================================================================
   PAINS (dark)
   ========================================================================== */
.pains {
  position: relative; color: #fff; padding: clamp(5rem, 10vw, 8rem) 0;
  background: radial-gradient(1000px 600px at 80% 0%, #13213d, var(--ink) 60%);
  overflow: hidden;
}
.pains::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 72px 72px;
}
.pains .container { position: relative; }
.pains-head { display: flex; flex-direction: column; gap: 22px; }
.pains .muted { color: #94a3b8; }
.pill-red { background: var(--red); border-radius: 18px; padding: 0 0.22em; }
.pains .lead { color: #cbd5e1; }
.pain-grid { margin-top: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pain-card { background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.09); border-radius: var(--r-lg); padding: clamp(1.5rem, 3vw, 2.2rem); }
.pain-card header { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; }
.pain-no { font-family: 'JetBrains Mono', monospace; font-weight: 700; color: var(--red); font-size: 0.95rem; }
.pain-card h3 { font-size: 1.35rem; letter-spacing: -0.02em; }
.pain-card ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.pain-card li { position: relative; padding-left: 30px; color: #cbd5e1; font-size: 0.98rem; }
.pain-card li b { color: #fff; }
.pain-card li::before {
  content: "✕"; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 50%;
  background: rgba(239, 68, 68, 0.18); color: #fca5a5; font-size: 0.7rem; font-weight: 800; display: grid; place-items: center;
}
.pains-turn { margin-top: clamp(2.5rem, 5vw, 4rem); font-size: clamp(1.3rem, 2.4vw, 1.8rem); font-weight: 700; letter-spacing: -0.02em; color: #cbd5e1; max-width: 820px; }
.pains-turn s { color: #94a3b8; }
.pains-turn b { color: #fff; background: linear-gradient(transparent 60%, rgba(0, 102, 255, 0.55) 60%); }

/* ==========================================================================
   PROOF (blue → violet)
   ========================================================================== */
.proof {
  color: #fff; padding: clamp(5rem, 10vw, 8rem) 0;
  background: linear-gradient(135deg, #1d4ed8 0%, var(--indigo) 55%, var(--violet) 100%);
  position: relative; overflow: hidden;
}
.proof::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .7;
  background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 72px 72px;
}
.proof .container { position: relative; }
.proof-head { display: flex; flex-direction: column; gap: 18px; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.proof .yl { color: var(--yellow); }
.proof .lead { color: #e0e7ff; }
.proof-grid { display: grid; grid-template-columns: 1.45fr 1fr; gap: clamp(1.5rem, 3vw, 2.5rem); align-items: center; }
.browser { background: #fff; border-radius: 18px; overflow: hidden; box-shadow: 0 40px 90px rgba(10, 10, 60, 0.45); }
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: #f1f5f9; border-bottom: 1px solid var(--line); }
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #cbd5e1; }
.browser-bar i:nth-child(1) { background: #f87171; }
.browser-bar i:nth-child(2) { background: #fbbf24; }
.browser-bar i:nth-child(3) { background: #34d399; }
.browser-bar span { margin-left: 10px; font-size: 0.8rem; color: var(--text-3); font-weight: 600; }
.browser video { width: 100%; aspect-ratio: 1280 / 694; object-fit: cover; background: #e2e8f0; }
.proof-stats { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.proof-stats li { background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--r-md); padding: 18px 20px; backdrop-filter: blur(6px); }
.proof-stats b { display: block; font-size: 1.9rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; color: var(--yellow); }
.proof-stats span { font-size: 0.95rem; color: #e0e7ff; }
.proof-seed { margin-top: clamp(2rem, 4vw, 3rem); display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 3vw, 2.5rem); align-items: center; }
.browser-sm video { aspect-ratio: 1280 / 694; }
.proof-seed-copy h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); letter-spacing: -0.025em; line-height: 1.2; }
.proof-seed-copy p { margin: 12px 0 22px; color: #e0e7ff; }

/* ==========================================================================
   THEATER
   ========================================================================== */
.theater { padding: clamp(5rem, 10vw, 8rem) 0; background: var(--paper); }
.theater-layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 24px; align-items: start; }
.player { background: #fff; border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-2); }
.player-frame { position: relative; background: #000; aspect-ratio: 16 / 9; }
.player-frame video { width: 100%; height: 100%; object-fit: contain; }
.player-big-play {
  position: absolute; left: 50%; top: 50%; width: 84px; height: 84px; margin: -42px 0 0 -42px; border-radius: 50%;
  background: var(--blue); color: #fff; display: grid; place-items: center; box-shadow: 0 0 0 12px rgba(0, 102, 255, 0.25), 0 20px 40px rgba(0, 0, 0, .35);
  transition: transform .25s var(--ease), opacity .25s;
}
.player-big-play svg { margin-left: 4px; }
.player-big-play:hover { transform: scale(1.06); }
.player.is-playing .player-big-play { opacity: 0; pointer-events: none; }
.player-bar {
  position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7)); color: #fff; opacity: 0; transition: opacity .25s;
}
.player-frame:hover .player-bar, .player:not(.is-playing) .player-bar { opacity: 1; }
.btn-ctrl { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: #fff; }
.btn-ctrl:hover { background: rgba(255, 255, 255, 0.15); }
.progress { flex: 1; height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.25); cursor: pointer; }
.progress-fill { height: 100%; width: 0; border-radius: 3px; background: var(--neon); }
.timecode { font-size: 0.75rem; letter-spacing: 0.02em; }
.player-info { padding: 22px 26px 26px; }
.player-info h3 { font-size: 1.25rem; letter-spacing: -0.02em; line-height: 1.3; }
.player-info p { margin-top: 6px; color: var(--text-2); font-size: 0.97rem; }
.playlist { display: flex; flex-direction: column; gap: 10px; }
.pl-item {
  display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: center; text-align: left;
  padding: 10px; border-radius: var(--r-md); background: #fff; box-shadow: inset 0 0 0 1px var(--line);
  transition: box-shadow .2s, transform .2s var(--ease);
}
.pl-item:hover { transform: translateY(-2px); box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1); }
.pl-item.is-active { box-shadow: inset 0 0 0 2px var(--blue), 0 12px 30px rgba(0, 102, 255, 0.15); }
.pl-thumb { position: relative; aspect-ratio: 16 / 10; border-radius: 10px; overflow: hidden; background: #0b1220; }
.pl-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pl-thumb .mono { position: absolute; right: 6px; bottom: 6px; font-size: 0.66rem; color: #fff; background: rgba(0, 0, 0, 0.65); padding: 2px 6px; border-radius: 5px; letter-spacing: 0.02em; }
.pl-cat { font-size: 0.7rem; font-weight: 700; color: var(--blue); }
.pl-title { font-weight: 700; font-size: 0.97rem; line-height: 1.3; margin-top: 2px; }
.pl-item.is-active .pl-cat::before { content: "▶ "; }

/* ==========================================================================
   MODULES
   ========================================================================== */
.modules { padding: clamp(5rem, 10vw, 8rem) 0; background: #fff; }
.module-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.module { background: var(--paper); border-radius: var(--r-lg); overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); display: flex; flex-direction: column; }
.module-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #0b1220; }
.module-media img, .module-media video { width: 100%; height: 100%; object-fit: cover; }
.media-tag { position: absolute; left: 14px; top: 14px; font-size: 0.72rem; color: #fff; background: rgba(0, 0, 0, 0.6); padding: 4px 8px; border-radius: 6px; letter-spacing: 0.04em; }
.module-body { padding: clamp(1.4rem, 2.5vw, 2rem); }
.module-no { font-size: 0.75rem; font-weight: 700; color: var(--blue); }
.module h3 { margin-top: 8px; font-size: clamp(1.3rem, 2vw, 1.55rem); letter-spacing: -0.025em; line-height: 1.25; }
.module p { margin-top: 10px; color: var(--text-2); }
.module-wide { grid-column: 1 / -1; flex-direction: row; }
.module-wide .module-media { flex: 0 0 34%; aspect-ratio: auto; min-height: 420px; }
.module-wide .module-body { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tags li { font-size: 0.82rem; font-weight: 600; color: var(--text-2); background: #fff; box-shadow: inset 0 0 0 1px var(--line); border-radius: 999px; padding: 6px 12px; }
.checks { list-style: none; margin-top: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
.checks li { position: relative; padding-left: 28px; font-size: 0.95rem; color: var(--text-2); }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%; background: rgba(0, 102, 255, 0.1); color: var(--blue); font-size: 0.75rem; font-weight: 800; display: grid; place-items: center; }

/* ==========================================================================
   BONUSES (dark gold)
   ========================================================================== */
.bonuses { color: #fff; padding: clamp(5rem, 10vw, 8rem) 0; background: radial-gradient(900px 600px at 50% 100%, #2a1d06, var(--ink) 65%); }
.bonuses .lead { color: #cbd5e1; }
.gift-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gift { background: #121c31; border: 1.5px solid rgba(245, 165, 36, 0.3); border-radius: var(--r-lg); overflow: hidden; transition: transform .35s var(--ease), border-color .3s; }
.gift:hover { transform: translateY(-6px) rotate(-0.4deg); border-color: rgba(245, 165, 36, 0.6); }
.gift-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.gift-media img { width: 100%; height: 100%; object-fit: cover; }
.gift-20 { display: grid; place-items: center; background: radial-gradient(circle at 50% 60%, #3b2a07, #121c31 70%); font-size: 7rem; font-weight: 800; color: var(--gold); letter-spacing: -0.06em; line-height: 1; }
.stamp {
  position: absolute; right: 14px; top: 14px; transform: rotate(10deg);
  background: var(--red); color: #fff; border: 3px solid #fff; border-radius: 10px;
  padding: 2px 14px; font-weight: 800; font-size: 1.1rem; letter-spacing: 0.04em; text-transform: uppercase;
  box-shadow: 0 10px 24px rgba(239, 68, 68, 0.45);
}
.gift-body { padding: 22px 24px 26px; }
.gift-no { font-size: 0.72rem; font-weight: 700; color: var(--gold); }
.gift h3 { margin-top: 6px; font-size: 1.3rem; letter-spacing: -0.02em; line-height: 1.25; }
.gift p { margin-top: 8px; color: #cbd5e1; font-size: 0.95rem; }
.gift-price { margin-top: 16px; display: flex; align-items: baseline; gap: 12px; }
.gift-price s { color: #94a3b8; font-weight: 700; }
.gift-price b { color: var(--gold); font-size: 1.4rem; }
.tags-gold li { background: transparent; color: var(--gold-soft); box-shadow: inset 0 0 0 1.5px rgba(245, 165, 36, 0.45); }

/* ==========================================================================
   PROMPTS
   ========================================================================== */
.prompts { padding: clamp(5rem, 10vw, 8rem) 0; background: var(--paper); }
.lock-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.lock-tile {
  position: relative; display: flex; flex-direction: column; gap: 12px; min-width: 0;
  padding: 16px; border-radius: var(--r-md); text-decoration: none; color: #fff; overflow: hidden;
  background: var(--ink); box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.lock-tile::before { content: ""; position: absolute; inset: 0; opacity: .55; pointer-events: none; }
.lock-tile.c0::before { background: radial-gradient(circle at 80% 0%, rgba(0, 210, 255, .45), transparent 60%); }
.lock-tile.c1::before { background: radial-gradient(circle at 80% 0%, rgba(52, 211, 153, .4), transparent 60%); }
.lock-tile.c2::before { background: radial-gradient(circle at 80% 0%, rgba(244, 114, 182, .45), transparent 60%); }
.lock-tile.c3::before { background: radial-gradient(circle at 80% 0%, rgba(245, 165, 36, .45), transparent 60%); }
.lock-tile:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(15, 23, 42, 0.22); }
.lock-top { position: relative; display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 0.72rem; }
.lock-top .mono { font-weight: 700; color: #a5f3fc; }
.lock-cat { font-weight: 700; color: #cbd5e1; }
.lock-blur { position: relative; display: flex; flex-direction: column; gap: 7px; padding: 12px; border-radius: 10px; background: rgba(255, 255, 255, 0.06); filter: blur(2.5px); }
.lock-blur i { display: block; height: 7px; border-radius: 4px; background: rgba(165, 243, 252, 0.45); }
.lock-blur i:nth-child(1) { width: 70%; }
.lock-blur i:nth-child(2) { width: 95%; }
.lock-blur i:nth-child(3) { width: 82%; }
.lock-blur i:nth-child(4) { width: 90%; }
.lock-blur i:nth-child(5) { width: 55%; }
.lock-ic { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -62%); width: 40px; height: 40px; border-radius: 50%; background: #fff; color: var(--ink); display: grid; place-items: center; box-shadow: 0 8px 20px rgba(0, 0, 0, .35); }
.lock-tile:hover .lock-ic { background: var(--blue); color: #fff; }
.lock-trend { position: relative; font-weight: 700; font-size: 0.92rem; line-height: 1.3; }
.lock-cta { margin-top: 32px; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.lock-cta p { font-size: 0.9rem; color: var(--text-3); }

/* carousel trụ cột 03 */
.carousel { position: relative; outline: none; }
.car-track { position: absolute; inset: 0; display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; cursor: grab; }
.car-track::-webkit-scrollbar { display: none; }
.car-track.dragging { cursor: grabbing; scroll-snap-type: none; user-select: none; }
.car-slide { flex: 0 0 100%; height: 100%; scroll-snap-align: start; }
.car-slide video { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.car-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; background: rgba(255, 255, 255, 0.92); color: var(--ink); display: grid; place-items: center; box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25); transition: transform .2s var(--ease), background .2s; }
.car-btn:hover { background: #fff; transform: translateY(-50%) scale(1.08); }
.car-prev { left: 12px; }
.car-next { right: 12px; }
.car-foot { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 16px 14px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.65)); color: #fff; display: flex; flex-direction: column; align-items: center; gap: 6px; pointer-events: none; }
.car-label { font-weight: 700; font-size: 0.95rem; }
.car-hint { font-size: 0.75rem; color: #cbd5e1; }
.car-dots { display: flex; gap: 6px; pointer-events: auto; }
.car-dots button { width: 7px; height: 7px; border-radius: 4px; background: rgba(255, 255, 255, 0.45); transition: width .3s var(--ease), background .3s; }
.car-dots button.on { width: 22px; background: #fff; }

/* ==========================================================================
   REGISTER
   ========================================================================== */
.register { padding: clamp(5rem, 10vw, 8rem) 0; background: linear-gradient(135deg, #1d4ed8 0%, var(--indigo) 60%, var(--violet) 100%); color: #fff; }
.register-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.register-copy .kicker { margin-bottom: 14px; }
.big-price { margin-top: 14px; display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; }
.big-price s { font-size: 1.5rem; font-weight: 700; color: #c7d2fe; }
.big-price b { font-size: clamp(4.5rem, 9vw, 7rem); font-weight: 800; letter-spacing: -0.06em; line-height: 1; color: var(--yellow); }
.save { color: #e0e7ff; margin-top: 4px; }
.included { list-style: none; margin-top: 26px; display: grid; gap: 10px; }
.included li { position: relative; padding-left: 30px; font-weight: 600; }
.included li s { color: #c7d2fe; font-weight: 500; margin-left: 6px; }
.included li::before { content: "✓"; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 50%; background: rgba(255, 255, 255, 0.18); font-size: 0.72rem; font-weight: 800; display: grid; place-items: center; }
.urgency { margin-top: 28px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 16px; border-radius: var(--r-md); background: rgba(0, 0, 0, 0.18); }
.countdown { display: flex; gap: 8px; }
.countdown div { width: 58px; text-align: center; background: rgba(255, 255, 255, 0.12); border-radius: 10px; padding: 6px 0; }
.countdown b { display: block; font-family: 'JetBrains Mono', monospace; font-size: 1.35rem; line-height: 1.2; }
.countdown span { font-size: 0.68rem; color: #c7d2fe; }
.urgency p { flex: 1; min-width: 180px; font-size: 0.93rem; color: #e0e7ff; }
.urgency p b { color: var(--yellow); }

.reg-form { background: #fff; color: var(--text); border-radius: var(--r-xl); padding: clamp(1.6rem, 3vw, 2.4rem); box-shadow: 0 40px 90px rgba(10, 10, 60, 0.45); display: flex; flex-direction: column; gap: 16px; }
.reg-form h3 { font-size: 1.4rem; letter-spacing: -0.02em; margin-bottom: 4px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 0.86rem; font-weight: 600; color: var(--text-2); }
.field input, .field select {
  font: inherit; font-size: 1rem; padding: 14px 16px; border-radius: 12px; border: 1.5px solid #e2e8f0; background: var(--paper); color: var(--text);
  transition: border-color .2s, box-shadow .2s, background .2s; width: 100%;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.12); }
.reg-form .btn { margin-top: 6px; white-space: normal; text-align: center; }
.form-note { text-align: center; font-size: 0.82rem; color: var(--text-3); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq { padding: clamp(5rem, 10vw, 8rem) 0; background: var(--paper); }
.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq details { background: #fff; border-radius: var(--r-md); box-shadow: inset 0 0 0 1px var(--line); padding: 0 22px; }
.faq summary { list-style: none; cursor: pointer; padding: 20px 36px 20px 0; font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.5rem; font-weight: 500; color: var(--blue); transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 0 20px; color: var(--text-2); }

/* ==========================================================================
   FOOTER, STICKY CTA, MODAL
   ========================================================================== */
.site-footer { padding: 36px 0; background: #fff; border-top: 1px solid var(--line); font-size: 0.9rem; color: var(--text-3); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-inner b { color: var(--text); }
.footer-links { display: flex; gap: 22px; }
.footer-links a { text-decoration: none; }
.footer-links .accent { color: var(--blue); font-weight: 700; }

.sticky-cta { display: none; }

.modal-overlay { position: fixed; inset: 0; z-index: 100; background: rgba(11, 18, 32, 0.6); backdrop-filter: blur(6px); display: grid; place-items: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity .3s; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content { width: 100%; max-width: 440px; background: #fff; border-radius: var(--r-lg); padding: 32px; text-align: center; transform: translateY(20px) scale(.97); transition: transform .4s var(--ease); }
.modal-overlay.active .modal-content { transform: none; }
.modal-icon { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%; background: #dcfce7; color: var(--green); display: grid; place-items: center; }
.modal-content h3 { font-size: 1.5rem; letter-spacing: -0.02em; }
.modal-content > p { margin: 8px 0 18px; color: var(--text-2); }
.modal-content > p b { color: var(--blue); }
.modal-list { list-style: none; text-align: left; background: var(--paper); border-radius: var(--r-md); padding: 16px 18px; margin-bottom: 20px; display: grid; gap: 6px; font-size: 0.92rem; color: var(--text-2); }
.modal-list b { color: var(--text); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stage { max-width: 560px; width: 100%; margin: 0 auto; }
  .proof-grid, .proof-seed { grid-template-columns: 1fr; }
  .theater-layout { grid-template-columns: 1fr; }
  .playlist { display: grid; grid-template-columns: 1fr 1fr; }
  .gift-grid { grid-template-columns: 1fr 1fr; }
  .lock-grid { grid-template-columns: repeat(4, 1fr); }
  .register-grid, .faq-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .container { padding: 0 16px; }
  .brand-logo span:last-child { font-size: 0.95rem; }
  .hero-title { font-size: clamp(2.3rem, 10vw, 3rem); }
  .hero-price { flex-wrap: wrap; gap: 10px 16px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-facts { gap: 18px; justify-content: space-between; }
  .hero-stage { height: 440px; }
  .chip-proof { left: 0; bottom: 6%; }
  .chip-seed { right: 0; top: 4%; }
  .wall-card { width: 150px; }
  .pain-grid { grid-template-columns: 1fr; }
  .playlist { grid-template-columns: 1fr; }
  .pl-item { grid-template-columns: 104px 1fr; }
  .player-info { padding: 18px; }
  .module-grid { grid-template-columns: 1fr; }
  .module-wide { flex-direction: column; }
  .module-wide .module-media { flex: none; min-height: 0; aspect-ratio: 4 / 5; }
  .checks { grid-template-columns: 1fr; }
  .gift-grid { grid-template-columns: 1fr; }
  .lock-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .lock-tile { padding: 12px; }
  .urgency { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  body { padding-bottom: 76px; }
  .sticky-cta {
    display: flex; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 60;
    align-items: center; justify-content: space-between; gap: 12px;
    background: rgba(11, 18, 32, 0.92); backdrop-filter: blur(12px); color: #fff;
    border-radius: 18px; padding: 10px 10px 10px 16px; box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: translateY(140%); transition: transform .4s var(--ease);
  }
  .sticky-cta.show { transform: none; }
  .sticky-cta div { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 8px; line-height: 1.25; }
  .sticky-cta s { color: #94a3b8; font-size: 0.85rem; }
  .sticky-cta b { font-size: 1.25rem; color: var(--yellow); }
  .sticky-cta span { flex-basis: 100%; font-size: 0.72rem; color: #94a3b8; }
}

/* Trụ cột 03: khung video đứng 9:16, bo góc, hiện trọn video */
.module-wide .module-media.carousel {
  flex: 0 0 clamp(280px, 30%, 360px); align-self: center;
  aspect-ratio: 9 / 16; min-height: 0; height: auto;
  margin: clamp(16px, 2.2vw, 28px) 0 clamp(16px, 2.2vw, 28px) clamp(16px, 2.2vw, 28px);
  border-radius: 28px; overflow: hidden; background: #0b1220;
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.22), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  isolation: isolate;
}
.carousel .car-slide video { object-fit: contain; background: #0b1220; }
@media (max-width: 768px) {
  .module-wide .module-media.carousel { flex: none; width: calc(100% - 32px); max-width: 420px; margin: 16px auto 0; aspect-ratio: 9 / 16; }
}

/* Nút bật tiếng trên video tự phát */
.snd {
  position: absolute; right: 12px; top: 12px; z-index: 5;
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px;
  border-radius: 999px; background: rgba(11, 18, 32, 0.62); color: #fff;
  font-size: 0.8rem; font-weight: 700; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: background .2s, transform .2s var(--ease);
}
.snd:hover { transform: scale(1.05); background: rgba(11, 18, 32, 0.8); }
.snd.on { background: var(--blue); }
.phone-front .snd { right: 18px; top: auto; bottom: 18px; animation: sndHint 2.4s ease-in-out 1.5s 3; }
@keyframes sndHint { 50% { box-shadow: 0 0 0 8px rgba(0, 102, 255, 0.35); } }
.wall-card .snd { width: 34px; padding: 0; justify-content: center; top: auto; bottom: 44px; right: 10px; }
.wall-card .snd span { display: none; }