:root {
  color-scheme: dark;
  --ink: #080d16;
  --ink-soft: #101824;
  --paper: #f1f4f7;
  --muted: #a7b4c3;
  --blue: #58a8ff;
  --cyan: #48e0da;
  --amber: #ffc45c;
  --line: rgba(207, 224, 240, .18);
  --font: "Manrope", "Segoe UI", sans-serif;
  --mono: "DM Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--paper); font-family: var(--font); }
a { color: inherit; }
.site-header { height: 84px; padding: 0 clamp(22px, 6vw, 92px); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); position: relative; z-index: 2; }
.brand { display: inline-flex; gap: 12px; align-items: center; text-decoration: none; font-weight: 800; font-size: 16px; letter-spacing: .12em; }
.brand img { width: 42px; height: 42px; border-radius: 12px; }
.site-header nav { display: flex; gap: clamp(18px, 3vw, 42px); align-items: center; font-size: 13px; color: #c4cfdb; }
.site-header nav a, .text-link, .footer-links a { text-decoration: none; }
.site-header nav a:hover, .footer-links a:hover, .text-link:hover { color: var(--cyan); }
.site-header .nav-download { color: var(--paper); border-bottom: 1px solid var(--blue); padding: 8px 0; }
.nav-download span, .button span { color: var(--cyan); padding-left: 8px; }
.hero { min-height: min(820px, calc(100svh - 84px)); padding: 74px clamp(22px, 8vw, 132px) 74px; display: grid; grid-template-columns: minmax(300px, .9fr) minmax(300px, .72fr); align-items: center; gap: clamp(36px, 8vw, 120px); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 620px; height: 620px; border: 1px solid rgba(88,168,255,.17); border-radius: 50%; right: -100px; top: 90px; pointer-events: none; }
.hero::after { content: ""; position: absolute; width: 460px; height: 460px; border: 1px solid rgba(72,224,218,.12); border-radius: 50%; right: -20px; top: 170px; pointer-events: none; }
.hero-copy, .hero-shot { position: relative; z-index: 1; }
.eyebrow { color: var(--cyan); font: 12px var(--mono); letter-spacing: .13em; margin: 0 0 22px; }
.signal-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); margin-right: 9px; box-shadow: 0 0 14px rgba(255,196,92,.8); }
h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(48px, 6.2vw, 88px); line-height: 1.02; letter-spacing: 0; margin-bottom: 25px; }
h1 span, h2 span { color: var(--blue); }
.hero-deck { max-width: 475px; color: #bbc7d4; font-size: clamp(16px, 1.6vw, 19px); line-height: 1.75; }
.hero-actions { display: flex; gap: 28px; align-items: center; margin-top: 34px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; min-height: 50px; padding: 0 20px; text-decoration: none; font-size: 13px; font-weight: 700; }
.button-primary { color: #08111a; background: var(--cyan); border-radius: 3px; }
.button-primary:hover { background: #a5fff0; }
.button-primary span { color: #08111a; }
.download-options { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 20px; }
.button-secondary { border: 1px solid var(--line); border-radius: 3px; }
.button-secondary:hover { border-color: var(--cyan); }
.button-placeholder { border: 1px dashed var(--line); border-radius: 3px; color: var(--muted); gap: 12px; }
.button-placeholder .coming-soon { color: var(--amber); padding: 0; font: 10px var(--mono); }
.closing .download-options { justify-content: center; }
.text-link { font-size: 13px; color: #d0d9e2; }
.text-link span { color: var(--cyan); padding-left: 8px; }
.platform-note { margin: 18px 0 0; color: #768495; font: 11px var(--mono); }
.hero-shot { margin: 0; justify-self: center; width: min(100%, 380px); }
.hero-shot img { display: block; width: 100%; border-radius: 30px; border: 7px solid #202a38; box-shadow: 0 26px 100px rgba(22, 94, 171, .22); }
.hero-shot figcaption { margin: 14px 4px 0; display: flex; justify-content: space-between; font: 10px var(--mono); color: #8e9daf; letter-spacing: .06em; }
.hero-index { position: absolute; right: 6vw; bottom: 38px; color: #96a5b7; font: 11px var(--mono); }
.hero-index span { color: var(--blue); padding: 0 6px; }
.intro { padding: 112px clamp(22px, 12vw, 190px) 70px; background: #0d1520; border-top: 1px solid var(--line); }
.intro-row { display: grid; grid-template-columns: 1fr .8fr; gap: 8vw; align-items: end; }
.intro h2, .section-heading h2, .closing h2 { font-size: clamp(40px, 5vw, 68px); line-height: 1.08; margin-bottom: 0; }
.intro-row > p { color: #aab8c8; font-size: 16px; line-height: 1.8; max-width: 500px; margin-bottom: 7px; }
.feature-line { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 82px; border-top: 1px solid var(--line); }
.feature-line span { padding: 20px 12px 0 0; color: #d7e0e8; font-size: 12px; }
.feature-line b { display: block; color: var(--blue); font: 11px var(--mono); margin-bottom: 12px; }
.screens { padding: 112px clamp(22px, 8vw, 132px) 128px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 50px; }
.section-heading .eyebrow { margin-bottom: 16px; }
.section-heading h2 { font-size: clamp(36px, 4.5vw, 60px); }
.section-heading h2 span { color: var(--cyan); }
.screen-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(14px, 3vw, 44px); align-items: start; }
.screen-item { margin: 0; }
.screen-item img { display: block; width: 100%; height: auto; border: 1px solid rgba(197,220,243,.2); border-radius: 8px; box-shadow: 0 20px 65px rgba(0,0,0,.28); }
.screen-offset { margin-top: 58px; }
.screen-item figcaption { padding: 16px 2px; display: flex; gap: 14px; color: #cbd5df; font-size: 12px; }
.screen-item figcaption span:first-child { font: 11px var(--mono); color: var(--cyan); }
.closing { text-align: center; padding: 105px 22px 118px; background: #111b25; border-top: 1px solid var(--line); }
.closing > img { border-radius: 17px; margin-bottom: 28px; }
.closing .eyebrow { margin-bottom: 16px; }
.closing h2 { margin-bottom: 28px; }
.closing h2 span { color: var(--amber); }
.site-footer { padding: 30px clamp(22px, 6vw, 92px); border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1.5fr; gap: 24px; align-items: center; color: #8c9aaa; font-size: 11px; }
.footer-brand { color: var(--paper); text-decoration: none; font-size: 12px; font-weight: 800; letter-spacing: .1em; white-space: nowrap; }
.footer-brand span { display: block; color: var(--blue); font: 9px var(--mono); margin-top: 5px; }
.site-footer p { margin: 0; line-height: 1.5; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer small { font: 10px var(--mono); white-space: nowrap; }

.policy-wrap { max-width: 880px; margin: 0 auto; padding: 82px 26px 100px; }
.policy-back { color: var(--cyan); text-decoration: none; font: 12px var(--mono); }
.policy-wrap h1 { font-size: clamp(42px, 6vw, 70px); margin: 54px 0 10px; }
.policy-updated { color: #8796a7; font: 12px var(--mono); margin-bottom: 42px; }
.policy-intro { color: #bdc9d5; font-size: 18px; line-height: 1.8; border-left: 2px solid var(--cyan); padding-left: 22px; margin-bottom: 55px; }
.policy-content h2 { margin: 40px 0 12px; color: var(--blue); font-size: 20px; }
.policy-content p, .policy-content li { color: #c1ccd7; line-height: 1.8; font-size: 15px; }
.policy-content ul { padding-left: 22px; }
.policy-content a { color: var(--cyan); }
.policy-contact { font-size: 17px !important; }

.learn-section { padding: 88px clamp(22px, 8vw, 132px); border-top: 1px solid var(--line); background: var(--ink-soft); }
.learn-section h2 { font-size: clamp(36px, 4.5vw, 60px); line-height: 1.12; margin-bottom: 26px; }
.learn-intro { max-width: 800px; color: #bdc9d5; font-size: 17px; line-height: 1.8; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin: 38px 0; }
.guide-card { padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: var(--ink); }
.guide-card h3 { font-size: 23px; line-height: 1.4; margin: 0 0 16px; }
.guide-card h3 a { text-decoration: none; }
.guide-card h3 a:hover { color: var(--cyan); }
.guide-card p:not(.eyebrow), .data-note p { color: #bdc9d5; line-height: 1.8; font-size: 15px; }
.data-note { max-width: 880px; border-left: 2px solid var(--cyan); padding-left: 22px; }
.data-note h3 { font-size: 21px; }
.data-note a { color: var(--cyan); }
.guide-wrap { max-width: 940px; margin: 0 auto; padding: 64px 26px 90px; }
.guide-wrap h1 { font-size: clamp(38px, 5.5vw, 64px); line-height: 1.12; margin: 28px 0 20px; }
.guide-wrap .policy-intro { margin-bottom: 32px; }
.guide-toc { display: flex; gap: 12px 24px; flex-wrap: wrap; padding: 20px 0; border-block: 1px solid var(--line); }
.guide-toc a, .guide-content a { color: var(--cyan); text-underline-offset: 4px; }
.guide-content h2 { color: var(--blue); font-size: 27px; line-height: 1.3; margin: 44px 0 16px; scroll-margin-top: 24px; }
.guide-content h3 { font-size: 19px; margin: 28px 0 12px; }
.guide-content p, .guide-content li, .guide-content dd { color: #c1ccd7; line-height: 1.85; font-size: 16px; }
.guide-content li { margin-bottom: 10px; }
.guide-content ul, .guide-content ol { padding-left: 24px; }
.guide-content dt { font-weight: 800; margin-top: 22px; }
.guide-content dd { margin: 8px 0 0; }
.guide-example { padding: 22px 26px; border: 1px solid var(--line); border-radius: 8px; background: var(--ink-soft); }
.guide-example h3 { margin-top: 0; }
.guide-figure { margin: 32px auto; max-width: 400px; }
.guide-figure img { display: block; max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px; }
.guide-figure figcaption { color: var(--muted); font-size: 13px; line-height: 1.7; margin-top: 12px; }
.guide-next { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 16px; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 5px; }
@media (max-width: 760px) {
  .guide-grid { grid-template-columns: 1fr; }
  .guide-card { padding: 22px; }
  .learn-section { padding: 64px 24px; }
  .guide-wrap { padding: 44px 22px 64px; }
  .guide-example { padding: 20px; }
}

@media (max-width: 760px) {
  .site-header { height: 70px; padding-inline: 18px; }
  .brand { gap: 8px; font-size: 13px; }
  .brand img { width: 36px; height: 36px; }
  .site-header nav { gap: 14px; font-size: 11px; }
  .site-header nav a:first-child { display: none; }
  .hero { min-height: auto; padding: 68px 24px 74px; grid-template-columns: 1fr; gap: 44px; }
  h1 { font-size: clamp(50px, 12vw, 76px); }
  .hero-shot { width: min(78vw, 360px); }
  .hero-index { bottom: 25px; right: 24px; }
  .intro { padding: 78px 24px 55px; }
  .intro-row { grid-template-columns: 1fr; gap: 24px; }
  .feature-line { grid-template-columns: repeat(2, 1fr); margin-top: 48px; row-gap: 22px; }
  .screens { padding: 76px 20px 82px; }
  .section-heading { display: block; margin-bottom: 32px; }
  .screen-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 18px; padding: 0 0 14px; }
  .screen-item { flex: 0 0 min(76vw, 330px); scroll-snap-align: center; }
  .screen-offset { margin-top: 0; }
  .closing { padding-block: 78px 88px; }
  .site-footer { grid-template-columns: 1fr auto; gap: 18px 14px; padding: 25px 20px; }
  .site-footer p { grid-column: 1 / -1; grid-row: 2; }
  .footer-links { grid-column: 1 / -1; grid-row: 3; flex-wrap: wrap; }
  .site-footer small { grid-column: 2; grid-row: 1; }
  .policy-wrap { padding: 52px 22px 76px; }
  .policy-wrap h1 { margin-top: 42px; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy { animation: arrive .65s ease-out both; }
  .hero-shot { animation: arrive .8s .12s ease-out both; }
  @keyframes arrive { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
}