:root {
  --bg: #08080a;
  --bg-elev: #111114;
  --bg-card: #141418;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;
  --violet: #8b5cf6;
  --fuchsia: #d946ef;
  --pink: #f472b6;
  --orange: #fb923c;
  --gradient: linear-gradient(135deg, #8b5cf6 0%, #d946ef 50%, #f472b6 100%);
  --radius: 14px;
  --maxw: 1160px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: rgba(8, 8, 10, 0.7);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px; background: var(--gradient);
  display: grid; place-items: center; box-shadow: 0 4px 20px rgba(217, 70, 239, 0.4);
}
.logo-mark svg { width: 16px; height: 16px; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; color: var(--text-muted); }
.nav-links a:hover { color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: #fff; color: #0a0a0a; }
.btn-primary:hover { box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2); }
.btn-gradient { background: var(--gradient); color: #fff; box-shadow: 0 8px 30px rgba(217, 70, 239, 0.35); }
.btn-gradient:hover { box-shadow: 0 12px 40px rgba(217, 70, 239, 0.5); }
.btn-ghost { background: rgba(255,255,255,0.04); border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn svg { width: 18px; height: 18px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 40px; text-align: center; }
.hero-glow {
  position: absolute; inset: -200px 0 auto 0; height: 800px; pointer-events: none; z-index: -1;
  background:
    radial-gradient(600px 380px at 50% 30%, rgba(139, 92, 246, 0.35), transparent 70%),
    radial-gradient(500px 300px at 30% 45%, rgba(217, 70, 239, 0.22), transparent 70%),
    radial-gradient(500px 300px at 70% 45%, rgba(244, 114, 182, 0.18), transparent 70%);
  filter: blur(10px);
}
.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: rgba(255,255,255,0.03);
  font-size: 13px; color: var(--text-muted); margin-bottom: 28px;
}
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gradient); box-shadow: 0 0 10px var(--fuchsia); }
.hero h1 {
  font-size: clamp(42px, 7vw, 84px); line-height: 1.02; letter-spacing: -0.045em; font-weight: 800;
  max-width: 900px; margin: 0 auto 24px;
}
.hero p.lead { font-size: clamp(17px, 2vw, 20px); color: var(--text-muted); max-width: 620px; margin: 0 auto 40px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.platforms { margin-top: 18px; font-size: 13px; color: var(--text-dim); }

/* ---------- Demo window ---------- */
.demo-wrap { position: relative; margin: 72px auto 0; max-width: 1040px; }
.demo-wrap::before {
  content: ""; position: absolute; inset: -2px; border-radius: 22px; z-index: -1;
  background: var(--gradient); opacity: .5; filter: blur(40px);
}
.window {
  border-radius: 18px; overflow: hidden; background: #0d0d10;
  border: 1px solid var(--border-strong);
  box-shadow: 0 40px 120px rgba(0,0,0,.6);
}
.window-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: #111115; }
.window-bar span { width: 12px; height: 12px; border-radius: 50%; background: #2a2a30; }
.window-bar span:nth-child(1) { background: #ff5f57; }
.window-bar span:nth-child(2) { background: #febc2e; }
.window-bar span:nth-child(3) { background: #28c840; }
.window-title { margin-left: 12px; font-size: 12px; color: var(--text-dim); }
.window-body { display: grid; grid-template-columns: 1fr 220px; min-height: 440px; }
.stage {
  position: relative; display: grid; place-items: center; padding: 40px; overflow: hidden;
  background: radial-gradient(circle at 50% 50%, #1a1325, #0d0d10 70%);
}
.canvas {
  position: relative; width: 100%; max-width: 520px; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden;
  background: linear-gradient(135deg, #312e81, #701a75 55%, #9d174d);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.canvas .shape { position: absolute; border-radius: 16px; }
.canvas .s1 { width: 22%; aspect-ratio: 1; left: 12%; top: 22%; background: rgba(255,255,255,.92); animation: float1 5s ease-in-out infinite; }
.canvas .s2 { width: 14%; aspect-ratio: 1; right: 18%; top: 18%; border-radius: 50%; background: #fbbf24; animation: float2 4s ease-in-out infinite; }
.canvas .s3 { width: 40%; height: 10%; left: 30%; bottom: 18%; border-radius: 999px; background: rgba(255,255,255,.25); overflow: hidden; }
.canvas .s3::after { content: ""; position: absolute; inset: 0; background: #fff; transform-origin: left; animation: grow 3s ease-in-out infinite; }
.canvas .caption {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-weight: 800; font-size: clamp(16px, 3vw, 30px); letter-spacing: -0.03em; color: #fff;
  animation: pop 3s cubic-bezier(.34,1.56,.64,1) infinite;
  text-shadow: 0 6px 30px rgba(0,0,0,.35);
}
@keyframes float1 { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-18%) rotate(12deg); } }
@keyframes float2 { 0%,100% { transform: scale(1); } 50% { transform: scale(1.3); } }
@keyframes grow { 0% { transform: scaleX(0); } 60%,100% { transform: scaleX(1); } }
@keyframes pop { 0% { transform: translate(-50%,-50%) scale(.6); opacity: 0; } 20%,80% { transform: translate(-50%,-50%) scale(1); opacity: 1; } 100% { transform: translate(-50%,-50%) scale(1.05); opacity: 0; } }

.inspector { border-left: 1px solid var(--border); padding: 18px; background: #0f0f12; text-align: left; font-size: 12px; }
.inspector h4 { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 12px; font-weight: 600; }
.preset { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; color: var(--text-muted); margin-bottom: 4px; }
.preset.active { background: rgba(139,92,246,.15); color: var(--text); border: 1px solid rgba(139,92,246,.35); }
.preset i { width: 18px; height: 18px; border-radius: 5px; background: #26262c; flex-shrink: 0; }
.preset.active i { background: var(--gradient); }
.slider { margin-top: 18px; }
.slider label { display: flex; justify-content: space-between; color: var(--text-muted); margin-bottom: 6px; }
.slider .track { height: 4px; border-radius: 4px; background: #26262c; position: relative; }
.slider .track b { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 4px; background: var(--gradient); }

.timeline { grid-column: 1 / -1; border-top: 1px solid var(--border); padding: 14px 18px; background: #0f0f12; }
.tracks { display: grid; gap: 8px; position: relative; }
.track-row { height: 22px; border-radius: 6px; background: #17171b; position: relative; overflow: hidden; }
.clip { position: absolute; top: 3px; bottom: 3px; border-radius: 4px; }
.clip.a { left: 2%; width: 38%; background: linear-gradient(90deg, #6d28d9, #8b5cf6); }
.clip.b { left: 42%; width: 30%; background: linear-gradient(90deg, #a21caf, #d946ef); }
.clip.c { left: 20%; width: 26%; background: linear-gradient(90deg, #be185d, #f472b6); }
.clip.d { left: 55%; width: 40%; background: linear-gradient(90deg, #c2410c, #fb923c); }
.playhead { position: absolute; top: -6px; bottom: -6px; width: 2px; background: #fff; box-shadow: 0 0 10px #fff; animation: play 6s linear infinite; }
@keyframes play { from { left: 0; } to { left: 100%; } }

/* ---------- Sections ---------- */
section { padding: 120px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 14px; }
.section-head h2 { font-size: clamp(32px, 4.5vw, 52px); letter-spacing: -0.035em; line-height: 1.08; font-weight: 800; margin-bottom: 16px; }
.section-head p { color: var(--text-muted); font-size: 18px; }

.logos { padding: 40px 0 0; text-align: center; color: var(--text-dim); font-size: 13px; }

.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 20px;
  background: rgba(139,92,246,.12); border: 1px solid rgba(139,92,246,.3); color: #c4b5fd;
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 18px; letter-spacing: -0.01em; margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: 15px; }

.feature-big {
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 96px;
}
.feature-big.reverse .feature-visual { order: -1; }
.feature-big h3 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 16px; }
.feature-big p { color: var(--text-muted); font-size: 17px; margin-bottom: 20px; }
.checklist { list-style: none; display: grid; gap: 10px; color: var(--text-muted); }
.checklist li { display: flex; gap: 10px; align-items: flex-start; }
.checklist li::before { content: "✓"; color: var(--pink); font-weight: 700; }
.feature-visual {
  aspect-ratio: 4 / 3; border-radius: 18px; border: 1px solid var(--border-strong); overflow: hidden; position: relative;
  background: radial-gradient(circle at 30% 20%, rgba(139,92,246,.35), transparent 60%), radial-gradient(circle at 80% 90%, rgba(244,114,182,.3), transparent 60%), #111115;
  display: grid; place-items: center;
}

/* easing curve visual */
.curve-box { width: 70%; aspect-ratio: 1.4; position: relative; }
.curve-box svg { width: 100%; height: 100%; overflow: visible; }
.curve-dot { offset-path: path("M 0 200 C 120 200, 160 0, 280 0"); animation: along 2.4s cubic-bezier(.65,0,.35,1) infinite alternate; }
@keyframes along { from { offset-distance: 0%; } to { offset-distance: 100%; } }

/* text animation visual */
.type-demo { font-size: clamp(28px, 4vw, 48px); font-weight: 800; letter-spacing: -0.03em; display: flex; gap: .25em; }
.type-demo span { display: inline-block; animation: rise 2.8s cubic-bezier(.34,1.56,.64,1) infinite; opacity: 0; }
.type-demo span:nth-child(2) { animation-delay: .12s; }
.type-demo span:nth-child(3) { animation-delay: .24s; }
@keyframes rise { 0% { transform: translateY(60%); opacity: 0; } 25%, 75% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(-40%); opacity: 0; } }

/* privacy visual */
.lock-ring { width: 160px; height: 160px; border-radius: 50%; display: grid; place-items: center; position: relative; }
.lock-ring::before, .lock-ring::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(217,70,239,.5); animation: ripple 3s ease-out infinite;
}
.lock-ring::after { animation-delay: 1.5s; }
@keyframes ripple { from { transform: scale(.7); opacity: 1; } to { transform: scale(1.8); opacity: 0; } }
.lock-core { width: 88px; height: 88px; border-radius: 24px; background: var(--gradient); display: grid; place-items: center; box-shadow: 0 20px 60px rgba(217,70,239,.5); }
.lock-core svg { width: 40px; height: 40px; color: #fff; }

/* ---------- Pricing ---------- */
.pricing { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 20px; justify-content: center; }
.price-card { padding: 36px; }
.price-card.featured { border-color: rgba(217,70,239,.5); background: linear-gradient(180deg, rgba(139,92,246,.12), var(--bg-card) 60%); }
.price-card .tag { position: absolute; top: 20px; right: 20px; font-size: 12px; padding: 4px 10px; border-radius: 999px; background: var(--gradient); color: #fff; font-weight: 600; }
.price { font-size: 52px; font-weight: 800; letter-spacing: -0.04em; margin: 12px 0 4px; }
.price small { font-size: 16px; color: var(--text-muted); font-weight: 500; letter-spacing: 0; }
.price-card .note { color: var(--text-muted); font-size: 14px; margin-bottom: 24px; }
.price-card .checklist { margin: 24px 0 0; font-size: 15px; }
.price-card .btn { width: 100%; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq summary { cursor: pointer; list-style: none; font-weight: 600; font-size: 17px; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--text-dim); font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--text-muted); margin-top: 12px; }

/* ---------- Download CTA ---------- */
.download {
  position: relative; text-align: center; border-radius: 28px; padding: 88px 24px; overflow: hidden;
  border: 1px solid var(--border-strong);
  background: radial-gradient(700px 300px at 50% 0%, rgba(139,92,246,.4), transparent 70%), radial-gradient(600px 300px at 50% 100%, rgba(244,114,182,.25), transparent 70%), #0f0f13;
}
.download h2 { font-size: clamp(34px, 5vw, 60px); letter-spacing: -0.04em; line-height: 1.05; margin-bottom: 16px; font-weight: 800; }
.download p { color: var(--text-muted); font-size: 18px; margin-bottom: 40px; }
.os-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 220px)); gap: 14px; justify-content: center; }
.os-btn {
  display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 24px 16px; border-radius: 16px;
  background: rgba(255,255,255,.04); border: 1px solid var(--border-strong); transition: all .2s ease;
}
.os-btn:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); }
.os-btn.detected { border-color: rgba(217,70,239,.7); background: rgba(217,70,239,.1); box-shadow: 0 10px 40px rgba(217,70,239,.25); }
.os-btn svg { width: 32px; height: 32px; }
.os-btn strong { font-size: 16px; }
.os-btn small { font-size: 12px; color: var(--text-dim); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 56px 0 40px; margin-top: 120px; color: var(--text-muted); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-grid .footer-title { color: var(--text); font-size: 13px; margin-bottom: 14px; font-weight: 600; }
.footer-grid ul { list-style: none; display: grid; gap: 10px; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--text-dim); font-size: 13px; border-top: 1px solid var(--border); padding-top: 24px; }

/* ---------- Legal pages ---------- */
.legal-hero { padding: 88px 0 40px; text-align: center; position: relative; }
.legal-hero h1 { font-size: clamp(36px, 5vw, 56px); letter-spacing: -0.04em; font-weight: 800; margin-bottom: 12px; }
.legal-hero p { color: var(--text-muted); }
.legal {
  max-width: 760px; margin: 0 auto; padding: 40px 0 0;
}
.legal h2 { font-size: 22px; letter-spacing: -0.02em; margin: 44px 0 14px; }
.legal h3 { font-size: 17px; margin: 28px 0 10px; }
.legal p, .legal li { color: #c4c4cc; margin-bottom: 14px; }
.legal ul, .legal ol { padding-left: 22px; margin-bottom: 14px; }
.legal li { margin-bottom: 8px; }
.legal a { color: #e9a8ff; text-decoration: underline; text-underline-offset: 3px; }
.legal strong { color: var(--text); }
.callout {
  border: 1px solid rgba(217,70,239,.35); background: rgba(139,92,246,.08); border-radius: var(--radius);
  padding: 20px 24px; margin: 24px 0;
}
.callout p:last-child { margin-bottom: 0; }
.toc { border: 1px solid var(--border); background: var(--bg-card); border-radius: var(--radius); padding: 20px 24px; margin-bottom: 16px; }
.toc ol { margin: 0; columns: 2; column-gap: 32px; }
.toc li { margin-bottom: 6px; font-size: 14px; }
.toc a { color: var(--text-muted); text-decoration: none; }
.toc a:hover { color: var(--text); }

.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 960px; margin: 40px auto 0; }
.contact-grid .card a { color: #e9a8ff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .feature-big { grid-template-columns: 1fr; gap: 32px; }
  .feature-big.reverse .feature-visual { order: 0; }
  .window-body { grid-template-columns: 1fr; }
  .inspector { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav-links a:not(.btn) { display: none; }
  section { padding: 80px 0; }
  .hero { padding-top: 64px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: 1fr; }
  .os-grid { grid-template-columns: 1fr; }
  .stage { padding: 20px; }
  .toc ol { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .canvas .caption, .type-demo span { opacity: 1; }
}