:root {
  color-scheme: dark;
  --bg: #07090d;
  --surface: #0d1118;
  --line: #222a37;
  --line-strong: #354156;
  --text: #f4f7fb;
  --muted: #939eae;
  --blue: #24bfff;
  --blue-strong: #008bd1;
  --green: #35d18a;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { border: 0; }
.container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
.section-rule { border-bottom: 1px solid var(--line); }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(34,42,55,.9); background: rgba(7,9,13,.93); backdrop-filter: blur(12px); }
.header-inner { min-height: 72px; display: flex; align-items: center; gap: 44px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 15px; font-weight: 800; letter-spacing: .08em; white-space: nowrap; }
.brand img { border-radius: 9px; }
.brand b { color: var(--blue); }
nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
nav a { color: #b4bdc9; font-size: 14px; font-weight: 600; }
nav a:hover, .footer-links a:hover { color: var(--text); }
.launch-status { display: inline-flex; align-items: center; gap: 8px; padding: 8px 11px; border: 1px solid var(--line); color: #bcc5d2; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.launch-status i { width: 7px; height: 7px; border-radius: 50%; background: #ffb14a; box-shadow: 0 0 0 3px rgba(255,177,74,.12); }

.hero { position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .34; background-image: linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right,#000,transparent 60%); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0,1.15fr) minmax(390px,.85fr); gap: 72px; align-items: center; min-height: 720px; padding-top: 70px; padding-bottom: 70px; }
.eyebrow { margin: 0 0 20px; color: var(--blue); font-size: 12px; line-height: 1; font-weight: 800; letter-spacing: .15em; }
.eyebrow span { margin-right: 12px; color: #657186; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 0; font-size: clamp(58px,7vw,98px); line-height: .91; letter-spacing: -.065em; font-weight: 900; text-transform: uppercase; }
h1 em { color: var(--blue); font-style: normal; }
.lead { max-width: 680px; margin: 30px 0 0; color: #b1bac7; font-size: 20px; line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 23px; border: 1px solid transparent; border-radius: 3px; font-size: 14px; font-weight: 800; letter-spacing: .02em; cursor: pointer; }
.button-primary { background: var(--blue); color: #00141e; }
.button-primary:not(:disabled):hover { background: #5bd1ff; }
.button-ghost { border-color: var(--line-strong); background: rgba(13,17,24,.7); color: var(--text); }
.button-ghost:hover { border-color: #617089; }
.button:disabled { cursor: not-allowed; filter: saturate(.55); opacity: .72; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 30px; color: #8d98a8; font-size: 13px; }
.hero-notes span::before { content: "✓"; margin-right: 7px; color: var(--green); font-weight: 900; }

.app-preview { border: 1px solid var(--line-strong); background: #0a0e14; box-shadow: 24px 24px 0 rgba(0,0,0,.25); }
.preview-titlebar { min-height: 54px; display: flex; align-items: center; justify-content: space-between; padding: 0 17px; border-bottom: 1px solid var(--line); color: #dce3ed; font-size: 13px; font-weight: 700; }
.preview-titlebar > span:first-child { display: flex; align-items: center; gap: 9px; }
.preview-titlebar img { border-radius: 6px; }
.window-controls { color: #647084; letter-spacing: .55em; }
.preview-body { padding: 25px; }
.preview-state { display: flex; align-items: center; gap: 14px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.pulse-dot { width: 13px; height: 13px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(53,209,138,.12); }
.preview-state small { display: block; margin-bottom: 3px; color: #748196; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.preview-state strong { font-size: 18px; }
.signal-card { margin: 22px 0; border: 1px solid var(--line); }
.signal-row { min-height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 14px; border-bottom: 1px solid var(--line); color: #8692a3; font-size: 12px; }
.signal-row:last-child { border-bottom: 0; }
.signal-row b { color: #d8e0e9; font-size: 12px; }
.signal-row .ok { color: var(--green); }
.preview-button { padding: 13px; border-radius: 3px; background: #dc4755; color: #fff; text-align: center; font-size: 13px; font-weight: 800; }
.preview-body > p { margin: 15px 0 0; color: #758195; font-size: 11px; text-align: center; }
.preview-tabs { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); color: #6f7b8d; font-size: 10px; text-align: center; text-transform: uppercase; }
.preview-tabs span, .preview-tabs b { padding: 14px 4px; }
.preview-tabs b { color: var(--blue); background: rgba(36,191,255,.07); }

.facts { background: #090c11; }
.facts-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.facts-grid div { min-height: 120px; display: flex; flex-direction: column; justify-content: center; padding: 24px 32px; border-left: 1px solid var(--line); }
.facts-grid div:last-child { border-right: 1px solid var(--line); }
.facts-grid strong { color: var(--text); font-size: 29px; line-height: 1; letter-spacing: -.04em; }
.facts-grid span { margin-top: 9px; color: #7f8a9b; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }

.content-section { padding: 112px 0; }
.section-heading { max-width: 670px; margin-bottom: 44px; }
.section-heading h2, .compatibility h2 { margin: 0; font-size: clamp(38px,5vw,64px); line-height: 1; letter-spacing: -.05em; text-transform: uppercase; }
.section-heading > p:last-child { max-width: 620px; margin: 22px 0 0; color: var(--muted); font-size: 17px; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--line); }
.steps article { position: relative; min-height: 340px; padding: 32px; border-right: 1px solid var(--line); background: var(--surface); }
.steps article:last-child { border-right: 0; }
.step-number { color: #566175; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.step-icon { margin: 62px 0 32px; color: var(--blue); font-size: 42px; line-height: 1; }
.steps h3, .feature-list h3 { margin: 0 0 12px; font-size: 20px; }
.steps p, .feature-list p { margin: 0; color: var(--muted); font-size: 14px; }

.feature-layout { display: grid; grid-template-columns: minmax(300px,.85fr) minmax(0,1.15fr); gap: 100px; align-items: start; }
.sticky-heading { position: sticky; top: 120px; }
.feature-list { border-top: 1px solid var(--line-strong); }
.feature-list article { display: grid; grid-template-columns: 52px 1fr; gap: 16px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.feature-list article > span { color: var(--blue); font-size: 12px; font-weight: 800; }

.pricing-section { background: #090c11; }
.price-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.price-card { display: flex; flex-direction: column; min-height: 470px; padding: 30px; border: 1px solid var(--line); background: var(--surface); }
.price-card.featured { border-color: var(--blue-strong); box-shadow: inset 0 3px 0 var(--blue); }
.plan { min-height: 20px; margin: 0; color: #8c97a7; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.plan span { float: right; padding: 3px 7px; background: rgba(36,191,255,.12); color: var(--blue); font-size: 9px; }
.price { display: flex; align-items: end; gap: 9px; margin: 34px 0 19px; }
.price strong { font-size: 45px; line-height: 1; letter-spacing: -.05em; }
.price span { padding-bottom: 5px; color: var(--muted); font-size: 12px; }
.price-card > p:not(.plan) { min-height: 50px; margin: 0; color: var(--muted); font-size: 13px; }
.price-card ul { flex: 1; margin: 28px 0; padding: 0; list-style: none; }
.price-card li { padding: 9px 0; border-bottom: 1px solid var(--line); color: #c0c8d3; font-size: 13px; }
.price-card li::before { content: "✓"; margin-right: 9px; color: var(--green); }
.button-muted { border-color: var(--line-strong); background: #171d27; color: #a9b3c0; }
.payment-note { max-width: 830px; margin: 24px 0 0; color: #707c8d; font-size: 12px; }

.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; align-items: start; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 46px 24px 0; cursor: pointer; list-style: none; font-size: 17px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 17px; color: var(--blue); font-size: 27px; font-weight: 300; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -4px 50px 25px 0; color: var(--muted); font-size: 14px; }

.compatibility { padding: 64px 0; border-bottom: 1px solid var(--line); background: var(--blue); color: #00131c; }
.compatibility-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: end; }
.compatibility .eyebrow { color: #004b6d; }
.compatibility h2 { font-size: clamp(32px,4vw,52px); }
.compatibility-inner > p { margin: 0; font-size: 14px; font-weight: 600; }

.site-footer { padding: 58px 0 24px; background: #05070a; }
.footer-main { display: grid; grid-template-columns: .8fr 1.1fr 1.1fr; gap: 50px; align-items: start; padding-bottom: 45px; }
.footer-main > p { margin: 0; max-width: 330px; color: #7f8998; font-size: 14px; }
.footer-links { display: grid; grid-template-columns: repeat(2,minmax(120px,1fr)); gap: 12px 22px; }
.footer-links a { color: #9ba5b4; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid var(--line); color: #5f6a7a; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }

.legal-page { min-height: 100vh; padding: 64px 0; background: var(--bg); }
.legal-card { max-width: 820px; margin: 0 auto; padding: 40px; border: 1px solid var(--line); background: var(--surface); }
.legal-card h1 { margin: 28px 0; font-size: clamp(38px,7vw,64px); }
.legal-card p { color: var(--muted); }
.legal-card a:not(.brand) { color: var(--blue); }

@media (max-width: 940px) {
  nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; padding-top: 90px; padding-bottom: 90px; }
  .app-preview { max-width: 540px; }
  .facts-grid { grid-template-columns: repeat(2,1fr); }
  .facts-grid div:nth-child(2) { border-right: 1px solid var(--line); }
  .facts-grid div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; }
  .steps article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .steps article:last-child { border-bottom: 0; }
  .step-icon { margin: 34px 0 24px; }
  .feature-layout, .faq-layout, .compatibility-inner { grid-template-columns: 1fr; gap: 44px; }
  .sticky-heading { position: static; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card { min-height: 0; }
  .price-card > p:not(.plan) { min-height: 0; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main > p { display: none; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 32px,var(--container)); }
  .header-inner { min-height: 64px; }
  .brand { font-size: 13px; }
  .brand img { width: 32px; height: 32px; }
  .launch-status { margin-left: auto; padding: 7px 8px; font-size: 9px; }
  .hero-grid { gap: 50px; padding-top: 64px; padding-bottom: 64px; }
  h1 { font-size: clamp(48px,15vw,68px); }
  .lead { font-size: 17px; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-notes { flex-direction: column; }
  .app-preview { box-shadow: 10px 10px 0 rgba(0,0,0,.25); }
  .preview-body { padding: 18px; }
  .facts-grid div { min-height: 100px; padding: 18px; }
  .facts-grid strong { font-size: 24px; }
  .facts-grid span { font-size: 10px; }
  .content-section { padding: 78px 0; }
  .section-heading h2, .compatibility h2 { font-size: 38px; }
  .section-heading > p:last-child { font-size: 15px; }
  .steps article, .price-card { padding: 24px; }
  .feature-list article { grid-template-columns: 36px 1fr; }
  .compatibility { padding: 48px 0; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-links { margin-top: 4px; }
  .footer-bottom { flex-direction: column; }
  .legal-card { padding: 25px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }