:root {
  color-scheme: dark;
  --ink: #f4f8fb;
  --muted: #9fb3c1;
  --dim: #6f8796;
  --blue: #18aaf5;
  --blue-bright: #30c7ff;
  --cyan: #54e1e7;
  --navy: #061018;
  --navy-2: #091722;
  --surface: rgba(13, 29, 40, 0.84);
  --line: rgba(98, 188, 235, 0.16);
  --line-strong: rgba(82, 204, 255, 0.32);
  --shell: 1180px;
  --display: "Avenir Next", "SF Pro Display", "Helvetica Neue", sans-serif;
  --body: "Avenir Next", "SF Pro Text", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 10%, rgba(0, 148, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 10% 68%, rgba(22, 221, 222, 0.08), transparent 30rem),
    linear-gradient(155deg, #07131c 0%, #050b10 60%, #07141c 100%);
  font-family: var(--body);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -3;
  background: linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.blueprint-grid {
  position: fixed;
  z-index: -2;
  right: -10vw;
  bottom: -28vh;
  width: 90vw;
  height: 85vh;
  opacity: .25;
  transform: perspective(650px) rotateX(61deg) rotateZ(-7deg);
  transform-origin: bottom;
  background-image:
    linear-gradient(rgba(45, 192, 255, .22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 192, 255, .22) 1px, transparent 1px),
    linear-gradient(rgba(45, 192, 255, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 192, 255, .09) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  mask-image: radial-gradient(ellipse at center, black, transparent 70%);
}

a { color: inherit; }
img { display: block; max-width: 100%; }
.section-shell { width: min(var(--shell), calc(100% - 48px)); margin-inline: auto; }
.section-pad { padding-block: 110px; }

.site-header {
  width: min(var(--shell), calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; letter-spacing: .12em; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1px solid var(--line-strong); border-radius: 11px;
  color: var(--blue-bright); background: linear-gradient(145deg, rgba(36,185,255,.16), rgba(7,22,33,.45));
  box-shadow: 0 0 24px rgba(27, 179, 248, .1); font-size: 13px; letter-spacing: -.06em;
}
.site-header nav { display: flex; gap: 28px; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
.site-header nav a:hover, .site-header nav a.active { color: var(--blue-bright); }

.hero { min-height: 770px; padding: 94px 0 88px; display: grid; grid-template-columns: .98fr 1.02fr; gap: 68px; align-items: center; }
.product-lockup { display: flex; align-items: center; gap: 20px; margin-bottom: 34px; }
.product-lockup img, .document-hero img { border-radius: 24%; box-shadow: 0 18px 58px rgba(0,0,0,.4), 0 0 28px rgba(20,170,245,.14); }
.eyebrow { margin: 0 0 8px; color: var(--blue-bright); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.platform { margin: 0; color: var(--muted); font-size: 15px; }
h1, h2, h3 { font-family: var(--display); }
h1 { margin: 0; font-size: clamp(52px, 6.5vw, 92px); line-height: .96; letter-spacing: -.055em; }
h1 span { color: transparent; background: linear-gradient(100deg, var(--blue), var(--cyan)); background-clip: text; -webkit-background-clip: text; }
.hero-copy, .document-hero > div, .contact-card > div { min-width: 0; }
.hero-lead { max-width: 650px; margin: 30px 0 0; color: var(--muted); font-size: clamp(18px, 2vw, 21px); line-height: 1.72; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 22px; border-radius: 14px; text-decoration: none; font-weight: 750; letter-spacing: -.01em; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #03111a; background: linear-gradient(135deg, var(--cyan), var(--blue)); box-shadow: 0 14px 35px rgba(16, 159, 240, .22); }
.button.secondary { color: var(--ink); border: 1px solid var(--line-strong); background: rgba(10, 27, 39, .7); }
.store-status { display: flex; align-items: center; gap: 10px; margin-top: 24px; color: var(--dim); font-size: 13px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 14px var(--blue); }

.hero-visual { position: relative; min-height: 660px; }
.orbit { position: absolute; border: 1px solid var(--line); border-radius: 50%; }
.orbit-one { inset: 5% -8% 10% 3%; }
.orbit-two { inset: 15% 2% 2% 16%; border-style: dashed; }
.phone { position: absolute; margin: 0; width: min(315px, 47%); border: 7px solid #101b23; border-radius: 43px; overflow: hidden; background: #050b0f; box-shadow: 0 45px 100px rgba(0,0,0,.52), 0 0 0 1px rgba(76,190,238,.15); }
.phone img { width: 100%; height: auto; }
.phone-back { top: 0; left: 2%; transform: rotate(-6deg); opacity: .78; }
.phone-front { right: 1%; bottom: 0; transform: rotate(5deg); z-index: 2; }

.signal-strip { display: grid; grid-template-columns: repeat(5, 1fr); border-block: 1px solid var(--line); background: rgba(6, 19, 28, .74); backdrop-filter: blur(16px); }
.signal-strip div { padding: 28px 18px; text-align: center; border-right: 1px solid var(--line); }
.signal-strip div:last-child { border-right: 0; }
.signal-strip strong, .signal-strip span { display: block; }
.signal-strip strong { color: var(--ink); font-size: 15px; }
.signal-strip span { margin-top: 4px; color: var(--dim); font-size: 12px; }

.section-heading { max-width: 790px; }
.section-heading.compact { margin-bottom: 46px; }
.section-heading h2, .closing h2 { margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.02; letter-spacing: -.045em; }
.section-heading > p:last-child, .closing p { color: var(--muted); font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 52px; }
.feature { position: relative; min-height: 290px; padding: 34px; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(145deg, rgba(15,35,48,.85), rgba(6,17,25,.7)); overflow: hidden; }
.feature::after { content: ""; position: absolute; width: 190px; height: 190px; right: -80px; bottom: -100px; border: 1px solid var(--line); transform: rotate(45deg); }
.feature-wide { grid-column: span 2; min-height: 260px; padding-right: 42%; }
.feature-index { position: absolute; right: 24px; top: 20px; color: rgba(80,204,255,.22); font-size: 42px; font-weight: 800; }
.feature-icon { width: 56px; height: 56px; display: grid; place-items: center; border-radius: 16px; background: rgba(18,169,244,.09); border: 1px solid var(--line); }
.feature-icon svg { width: 30px; fill: none; stroke: var(--blue-bright); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { margin: 24px 0 8px; font-size: 26px; letter-spacing: -.025em; }
.feature p { max-width: 520px; margin: 0; color: var(--muted); }

.showcase { border-block: 1px solid var(--line); background: rgba(4, 13, 19, .67); }
.screen-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: start; }
.screen-card { margin: 0; padding: 10px; border: 1px solid var(--line); border-radius: 26px; background: rgba(12,27,38,.88); box-shadow: 0 24px 60px rgba(0,0,0,.24); }
.screen-card:nth-child(2), .screen-card:nth-child(4) { margin-top: 58px; }
.screen-card img { width: 100%; border-radius: 19px; }
.screen-card figcaption { display: grid; grid-template-columns: auto 1fr; gap: 1px 10px; padding: 18px 8px 10px; }
.screen-card figcaption span { grid-row: span 2; color: var(--blue-bright); font-size: 12px; font-weight: 800; }
.screen-card figcaption strong { font-size: 14px; }
.screen-card figcaption small { color: var(--dim); }

.closing-card { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; padding: 52px; border: 1px solid var(--line-strong); border-radius: 30px; background: linear-gradient(120deg, rgba(15,45,63,.84), rgba(7,21,30,.9)); box-shadow: inset 0 1px rgba(255,255,255,.04), 0 34px 90px rgba(0,0,0,.2); }
.closing-card h2 { font-size: clamp(36px, 4.8vw, 60px); }

.site-footer { padding: 28px 0 44px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center; color: var(--dim); }
.site-footer > div:first-child { display: flex; align-items: baseline; gap: 12px; }
.site-footer strong { color: var(--ink); letter-spacing: .12em; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { text-decoration: none; font-size: 14px; }
.site-footer small { grid-column: 1 / -1; }

/* Document pages */
.document-page { background: radial-gradient(circle at 50% -10%, rgba(0,158,255,.14), transparent 35rem), var(--navy); }
.document-shell { width: min(920px, calc(100% - 48px)); margin: 0 auto; padding: 52px 0 100px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; color: var(--dim); font-size: 13px; }
.breadcrumbs a { text-decoration: none; color: var(--muted); }
.document-hero { display: grid; grid-template-columns: 88px 1fr; gap: 24px; align-items: center; margin: 56px 0 38px; }
.document-hero h1 { font-size: clamp(42px, 7vw, 70px); }
.document-hero p:last-child { max-width: 690px; margin: 12px 0 0; color: var(--muted); font-size: 18px; }
.contact-card { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding: 30px; border: 1px solid var(--line-strong); border-radius: 24px; background: var(--surface); }
.contact-label { display: block; margin-bottom: 4px; color: var(--dim); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.contact-card div > a { color: var(--blue-bright); font-size: clamp(21px, 4vw, 30px); font-weight: 750; text-decoration: none; }
.contact-card p { max-width: 600px; margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.document-content { margin-top: 68px; }
.document-content h2 { margin: 56px 0 20px; font-size: 30px; letter-spacing: -.03em; }
.document-content > h2:first-child { margin-top: 0; }
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { padding: 22px 4px; cursor: pointer; font-weight: 700; list-style: none; }
summary::after { content: "+"; float: right; color: var(--blue-bright); font-size: 24px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { max-width: 760px; margin: -4px 0 22px; color: var(--muted); }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.check-grid div { display: flex; gap: 15px; align-items: center; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(12,27,38,.65); }
.check-grid span { color: var(--blue-bright); font-size: 12px; font-weight: 800; }
.check-grid p { margin: 0; color: var(--muted); }
.notice { margin-top: 34px; padding: 24px; border-left: 3px solid var(--blue); background: rgba(16,66,90,.2); border-radius: 0 16px 16px 0; }
.notice p { margin: 6px 0 0; color: var(--muted); }
.privacy-summary { margin: 0 0 68px; padding: 30px; border: 1px solid var(--line-strong); border-radius: 24px; background: linear-gradient(135deg, rgba(14,57,78,.72), rgba(9,28,39,.82)); }
.privacy-summary h2 { max-width: 700px; margin: 6px 0 12px; font-size: clamp(28px, 5vw, 42px); line-height: 1.1; letter-spacing: -.035em; }
.privacy-summary p { max-width: 720px; margin: 0; color: var(--muted); }
.policy-content { margin-top: 0; }
.policy-content h2 { scroll-margin-top: 24px; }
.policy-content p, .policy-content li { color: var(--muted); }
.policy-content ul { display: grid; gap: 10px; padding-left: 23px; }
.policy-content a { color: var(--blue-bright); font-weight: 700; }
.policy-date { margin: 0 0 44px; padding-bottom: 20px; border-bottom: 1px solid var(--line); font-size: 14px; }

@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.hero-copy, .document-hero { animation: rise .7s ease both; }
.hero-visual { animation: rise .9s .08s ease both; }

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; padding-top: 70px; }
  .hero-visual { min-height: 700px; width: min(680px, 100%); margin-inline: auto; }
  .signal-strip { grid-template-columns: repeat(3, 1fr); }
  .signal-strip div:nth-child(3) { border-right: 0; }
  .signal-strip div:nth-child(n+4) { border-top: 1px solid var(--line); }
  .screen-grid { grid-template-columns: repeat(2, 1fr); }
  .screen-card:nth-child(2), .screen-card:nth-child(4) { margin-top: 32px; }
  .closing-card { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 680px) {
  .section-shell, .site-header, .document-shell { width: min(100% - 28px, var(--shell)); }
  .site-header { padding: 17px 0; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 12px; }
  .site-header nav a:first-child { display: none; }
  .brand > span:last-child { font-size: 13px; }
  .hero { min-height: auto; padding: 58px 0 70px; gap: 40px; }
  .product-lockup img { width: 80px; height: 80px; }
  h1 { font-size: clamp(46px, 14vw, 62px); overflow-wrap: anywhere; }
  .hero-lead { font-size: 17px; }
  .hero-actions .button { flex: 1 1 100%; }
  .hero-visual { min-height: 510px; }
  .phone { width: 51%; border-width: 5px; border-radius: 30px; }
  .phone-back { left: 0; }
  .phone-front { right: 0; }
  .signal-strip { grid-template-columns: 1fr 1fr; }
  .signal-strip div, .signal-strip div:nth-child(3) { border-right: 1px solid var(--line); border-top: 1px solid var(--line); }
  .signal-strip div:nth-child(2n) { border-right: 0; }
  .signal-strip div:first-child, .signal-strip div:nth-child(2) { border-top: 0; }
  .section-pad { padding-block: 76px; }
  .section-heading h2, .closing h2 { font-size: 40px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature, .feature-wide { grid-column: auto; min-height: 260px; padding: 28px; }
  .screen-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .screen-card { padding: 6px; border-radius: 19px; }
  .screen-card img { border-radius: 14px; }
  .screen-card:nth-child(2), .screen-card:nth-child(4) { margin-top: 22px; }
  .screen-card figcaption { padding: 12px 4px 7px; grid-template-columns: 1fr; }
  .screen-card figcaption span { display: none; }
  .screen-card figcaption strong { font-size: 12px; }
  .screen-card figcaption small { font-size: 10px; }
  .closing-card { padding: 30px 24px; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-links { grid-row: 2; }
  .site-footer small { grid-column: 1; }
  .document-shell { padding-top: 34px; }
  .document-hero { grid-template-columns: 64px 1fr; margin-top: 42px; }
  .document-hero img { width: 64px; height: 64px; }
  .document-hero h1 { font-size: 43px; }
  .document-hero p:last-child { grid-column: 1 / -1; }
  .contact-card { align-items: stretch; flex-direction: column; }
  .contact-card div > a { overflow-wrap: anywhere; }
  .contact-card .button { width: 100%; }
  .check-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
