@font-face { font-family: "Inter Tight"; font-weight: 400; font-display: swap; src: url("/assets/fonts/InterTight-Regular.ttf") format("truetype"); }
@font-face { font-family: "Inter Tight"; font-weight: 500; font-display: swap; src: url("/assets/fonts/InterTight-Medium.ttf") format("truetype"); }
@font-face { font-family: "Inter Tight"; font-weight: 600; font-display: swap; src: url("/assets/fonts/InterTight-SemiBold.ttf") format("truetype"); }
@font-face { font-family: "Inter Tight"; font-weight: 700; font-display: swap; src: url("/assets/fonts/InterTight-Bold.ttf") format("truetype"); }

:root {
  --ground: #000;
  --elevated: #161618;
  --dialog: #1c1c1e;
  --hairline: rgba(255, 255, 255, 0.12);
  --text: #f5f5f7;
  --text-2: #a1a1a6;
  --text-3: #8e8e93;
  --accent: #f5f5f7;
  --on-accent: #000;
  --spark-a: #ff5e8a;
  --spark-b: #7b3cff;
  --spark: linear-gradient(120deg, var(--spark-a), var(--spark-b));
  --radius: 18px;
  --max: 1120px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 17px/1.6 "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--spark-b); color: #fff; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--text-2); transition: color .15s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }
@media (max-width: 720px) { .nav .hide-sm { display: none; } .nav { gap: 16px; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 52px; padding: 0 24px; border-radius: 999px;
  font: 600 16px/1 inherit; font-family: inherit; text-decoration: none; cursor: pointer;
  border: 1px solid var(--hairline); background: transparent; color: var(--text);
  transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover { background: #d1d1d6; }
.btn small { display: block; font-weight: 500; font-size: 11px; opacity: .7; letter-spacing: .02em; }
.btn .stack { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.15; }
.btn svg { width: 22px; height: 22px; flex: none; }
.nav .btn-primary { color: var(--on-accent); }
.nav .btn { height: 38px; padding: 0 16px; font-size: 14px; }

/* Typography */
h1, h2, h3 { overflow-wrap: break-word; letter-spacing: -0.025em; line-height: 1.08; margin: 0; }
h1 { font-size: clamp(42px, 7.2vw, 84px); font-weight: 700; }
h2 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.25; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--text-2); max-width: 620px; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); margin: 0 0 14px; }
.spark-text { background: var(--spark); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--text-2); }

section { padding: 110px 0; }
@media (max-width: 720px) { section { padding: 72px 0; } }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head .lead { margin-top: 18px; }

/* Hero */
.hero { padding: 80px 0 40px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto auto; width: 720px; height: 720px;
  background: radial-gradient(closest-side, rgba(123, 60, 255, .28), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; left: -200px; top: 240px; width: 560px; height: 560px;
  background: radial-gradient(closest-side, rgba(255, 94, 138, .16), transparent 70%);
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 48px; } }
.hero .lead { margin: 24px 0 36px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 18px; font-size: 14px; color: var(--text-3); }

/* Phone mockup */
.phone {
  position: relative; width: min(320px, 82vw); aspect-ratio: 9 / 19.5; margin: 0 auto;
  border-radius: 46px; padding: 12px; background: #0b0b0c;
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: 0 40px 120px rgba(123, 60, 255, .25), inset 0 0 0 2px #1d1d20;
}
.phone .screen { position: relative; width: 100%; height: 100%; border-radius: 35px; overflow: hidden; background: #000; display: flex; flex-direction: column; }
.phone .island { position: absolute; top: 10px; left: 50%; transform: translateX(-50%); width: 92px; height: 26px; border-radius: 20px; background: #000; z-index: 3; }
.screen .topbar { display: flex; justify-content: space-between; align-items: center; padding: 46px 16px 10px; font-size: 12px; color: var(--text-2); }
.screen .topbar b { color: var(--on-accent); background: var(--accent); padding: 5px 12px; border-radius: 999px; font-weight: 600; }
.screen .preview { position: relative; margin: 0 12px; border-radius: 14px; overflow: hidden; aspect-ratio: 1; background: #111; }
.screen .preview video { width: 100%; height: 100%; object-fit: cover; }
.screen .preview .cap {
  position: absolute; left: 0; right: 0; bottom: 14px; text-align: center;
  font-weight: 700; font-size: 18px; color: #fff; text-shadow: 0 0 6px #000, 0 2px 0 #000;
}
.screen .time { text-align: center; font-size: 12px; color: var(--text-2); padding: 10px 0 6px; font-variant-numeric: tabular-nums; }
.screen .track { position: relative; margin: 6px 12px 0; display: flex; flex-direction: column; gap: 6px; }
.screen .lane { height: 34px; border-radius: 7px; display: flex; gap: 2px; overflow: hidden; }
.screen .lane i { flex: 1; background-size: cover; background-position: center; }
.screen .lane.text { height: 18px; width: 58%; margin-left: 18%; background: #3a2a63; border-radius: 5px; font-size: 10px; display: flex; align-items: center; padding: 0 8px; color: #d9ccff; }
.screen .lane.audio { height: 18px; width: 92%; background: #163b33; border-radius: 5px; }
.screen .playhead { position: absolute; top: -6px; bottom: -6px; left: 46%; width: 2px; background: var(--accent); border-radius: 2px; animation: scrub 6s ease-in-out infinite alternate; }
@keyframes scrub { from { left: 12%; } to { left: 82%; } }
.screen .chips { display: flex; gap: 6px; padding: 16px 12px; margin-top: auto; overflow: hidden; }
.screen .chips span { flex: none; font-size: 11px; height: 28px; padding: 0 11px; display: inline-flex; align-items: center; border-radius: 999px; border: 1px solid var(--hairline); color: var(--text-2); }
.screen .chips span.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); font-weight: 600; }
@media (prefers-reduced-motion: reduce) { .screen .playhead { animation: none; } html { scroll-behavior: auto; } }

/* Stats strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.stats div { padding: 28px 20px; border-left: 1px solid var(--hairline); }
.stats div:first-child { border-left: 0; }
.stats b { display: block; font-size: 34px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stats span { color: var(--text-2); font-size: 14px; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } .stats div:nth-child(3) { border-left: 0; } .stats div:nth-child(n+3) { border-top: 1px solid var(--hairline); } }

/* Feature grid */
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--elevated); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 28px; }
.card .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(255, 255, 255, .06); margin-bottom: 20px; }
.card .ico svg { width: 22px; height: 22px; stroke: var(--text); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card p { color: var(--text-2); margin: 10px 0 0; font-size: 16px; }
.card ul { margin: 14px 0 0; padding-left: 18px; color: var(--text-2); font-size: 15px; }
.card ul li { margin: 4px 0; }

/* Big feature rows */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 48px 0; border-top: 1px solid var(--hairline); }
.feature-row:first-of-type { border-top: 0; }
.feature-row.flip .media { order: -1; }
@media (max-width: 900px) { .feature-row { grid-template-columns: 1fr; gap: 32px; } .feature-row.flip .media { order: 0; } }
.feature-row p { color: var(--text-2); }
.feature-row h3 { font-size: clamp(26px, 3vw, 34px); letter-spacing: -0.02em; line-height: 1.12; }
.feature-row .points { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.feature-row .points li { display: flex; gap: 12px; color: var(--text-2); }
.feature-row .points li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; margin-top: 11px; background: var(--spark); }
.media { border-radius: 24px; overflow: hidden; background: var(--elevated); border: 1px solid var(--hairline); }

/* Keyframe demo */
.kf { padding: 28px; }
.kf-stage { position: relative; aspect-ratio: 16/10; border-radius: 14px; background: #0a0a0b; overflow: hidden; border: 1px solid var(--hairline); }
.kf-dot { position: absolute; width: 72px; height: 72px; border-radius: 18px; background: var(--spark); left: 8%; top: 60%; animation: kfmove 4s cubic-bezier(.65, 0, .35, 1) infinite; box-shadow: 0 20px 60px rgba(123, 60, 255, .5); }
@keyframes kfmove {
  0% { left: 8%; top: 60%; transform: rotate(0) scale(1); }
  45% { left: 44%; top: 18%; transform: rotate(90deg) scale(1.35); }
  100% { left: 78%; top: 58%; transform: rotate(180deg) scale(.8); }
}
.kf-curve { position: absolute; inset: 0; }
.kf-curve path { stroke: rgba(255, 255, 255, .22); stroke-dasharray: 4 6; fill: none; stroke-width: 2; }
.kf-rail { position: relative; height: 34px; margin-top: 16px; border-radius: 8px; background: #0a0a0b; border: 1px solid var(--hairline); }
.kf-rail i { position: absolute; top: 50%; width: 12px; height: 12px; background: var(--accent); transform: translate(-50%, -50%) rotate(45deg); border-radius: 2px; }
.kf-rail .ph { position: absolute; top: 3px; bottom: 3px; width: 2px; background: var(--spark-a); animation: kfph 4s linear infinite; }
@keyframes kfph { from { left: 6%; } to { left: 94%; } }
@media (prefers-reduced-motion: reduce) { .kf-dot, .kf-rail .ph { animation: none; } }

/* Effects gallery */
.gallery { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
@media (max-width: 900px) { .gallery { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 600px) { .gallery { grid-template-columns: repeat(3, 1fr); gap: 8px; } }
.tile { position: relative; border-radius: 14px; overflow: hidden; aspect-ratio: 1; background: var(--elevated); }
.tile video { width: 100%; height: 100%; object-fit: cover; }
.tile span { position: absolute; left: 8px; bottom: 8px; font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px; background: rgba(0, 0, 0, .6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

/* Steps */
.steps { counter-reset: step; }
.steps .card { position: relative; }
.steps .card::before { counter-increment: step; content: "0" counter(step); display: block; font-size: 14px; font-weight: 700; letter-spacing: .1em; margin-bottom: 18px; background: var(--spark); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Privacy band */
.band { border-radius: 28px; padding: clamp(32px, 6vw, 72px); background: radial-gradient(120% 140% at 100% 0%, rgba(123, 60, 255, .22), transparent 60%), var(--elevated); border: 1px solid var(--hairline); }
.band .grid { margin-top: 40px; }
.band .card { background: rgba(0, 0, 0, .4); }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-top: 1px solid var(--hairline); padding: 4px 0; }
.faq details:last-child { border-bottom: 1px solid var(--hairline); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative; font-weight: 600; font-size: 18px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 26px; font-weight: 400; color: var(--text-2); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { margin: 0 0 22px; color: var(--text-2); }

/* Final CTA */
.final { text-align: center; }
.final img { width: 96px; height: 96px; border-radius: 24px; margin: 0 auto 28px; box-shadow: 0 20px 80px rgba(123, 60, 255, .35); }
.final .lead { margin: 18px auto 34px; }
.final .cta-row { justify-content: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--hairline); padding: 56px 0 40px; font-size: 14px; color: var(--text-2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > :first-child { grid-column: 1 / -1; } }
.site-footer h4 { margin: 0 0 14px; font-size: 13px; color: var(--text); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--text-3); }

/* Legal / doc pages */
.doc { max-width: 760px; padding: 64px 0 100px; }
.doc h1 { font-size: clamp(36px, 6vw, 56px); }
.doc .updated { color: var(--text-3); margin: 16px 0 40px; font-size: 15px; }
.doc h2 { font-size: 26px; margin: 52px 0 14px; letter-spacing: -0.015em; }
.doc h3 { font-size: 19px; margin: 30px 0 8px; }
.doc p, .doc li { color: #d1d1d6; }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc a { color: var(--text); text-decoration-color: var(--spark-b); text-underline-offset: 3px; }
.doc .summary { background: var(--elevated); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 24px 26px; margin: 0 0 12px; }
.doc .summary p { margin: 0 0 10px; }
.doc .summary ul { margin: 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.doc th { color: var(--text); font-weight: 600; background: var(--elevated); }
.doc td { color: #d1d1d6; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; }
.toc a { font-size: 13px; text-decoration: none; padding: 6px 12px; border: 1px solid var(--hairline); border-radius: 999px; color: var(--text-2); }
.toc a:hover { color: var(--text); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 24px; margin-top: 40px; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-list { display: grid; gap: 12px; }
.contact-list .card { padding: 22px 24px; }
.contact-list a { font-weight: 600; text-decoration: none; }
.contact-list a:hover { text-decoration: underline; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 7px; font-size: 14px; font-weight: 500; color: var(--text-2); }
input, select, textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--text);
  background: #0b0b0c; border: 1px solid var(--hairline); border-radius: 12px; padding: 13px 14px;
}
textarea { min-height: 150px; resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--spark-b); outline-offset: 2px; }
.form-note { font-size: 13px; color: var(--text-3); }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }