:root {
  --ink: #111849;
  --muted: #5b6585;
  --line: #e3e6f2;
  --paper: #ffffff;
  --canvas: #f6f7ff;
  --soft: #f0eaff;
  --primary: #2563eb;
  --violet: #7c3aed;
  --warn-bg: #fff7ed;
  --warn-line: #fed7aa;
  --warn-ink: #9a3412;
  --shadow: 0 18px 50px rgba(52, 48, 139, .12);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e8eaf6;
    --muted: #a3abc8;
    --line: #2a3052;
    --paper: #151a33;
    --canvas: #0d1126;
    --soft: #241d4d;
    --primary: #6b9bff;
    --violet: #a78bfa;
    --warn-bg: #2a1a0e;
    --warn-line: #5c3416;
    --warn-ink: #fdba74;
    --shadow: 0 18px 50px rgba(0, 0, 0, .4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #e8eaf6; --muted: #a3abc8; --line: #2a3052; --paper: #151a33; --canvas: #0d1126; --soft: #241d4d;
  --primary: #6b9bff; --violet: #a78bfa; --warn-bg: #2a1a0e; --warn-line: #5c3416; --warn-ink: #fdba74;
  --shadow: 0 18px 50px rgba(0, 0, 0, .4); color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.6 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
code, kbd { font: 600 .9em ui-monospace, SFMono-Regular, Menlo, monospace; }
code { padding: 1px 6px; border-radius: 6px; background: var(--soft); color: var(--violet); }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--primary) 40%, transparent); outline-offset: 2px; }

.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--canvas) 88%, transparent); backdrop-filter: blur(10px); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; font-size: 18px; letter-spacing: -.02em; text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.site-nav { display: flex; gap: 22px; }
.site-nav a { color: var(--muted); font-size: 14px; font-weight: 600; text-decoration: none; }
.site-nav a:hover { color: var(--ink); }

.hero { padding: 72px 0 40px; text-align: center; background: radial-gradient(700px 320px at 80% 0%, color-mix(in srgb, var(--violet) 18%, transparent), transparent 70%), radial-gradient(600px 300px at 10% 0%, color-mix(in srgb, #06b6d4 16%, transparent), transparent 70%); }
.eyebrow { margin: 0 0 12px; color: var(--violet); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero h1 { max-width: 760px; margin: 0 auto 16px; font-size: clamp(32px, 6vw, 54px); line-height: 1.1; letter-spacing: -.035em; }
.hero p.lede { max-width: 640px; margin: 0 auto 28px; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.button { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); color: var(--ink); font-weight: 700; text-decoration: none; }
.button.primary { border: 0; background: linear-gradient(135deg, #2563eb, #7c3aed); color: #fff; box-shadow: 0 12px 28px rgba(79, 70, 229, .28); }
.button.primary:hover { transform: translateY(-1px); }
.button[aria-disabled="true"] { pointer-events: none; opacity: .55; }
.release-meta { min-height: 22px; margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.hero-shot { margin: 44px auto 0; width: 100%; max-width: min(980px, 100%); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }

section { padding: 64px 0; scroll-margin-top: 64px; }
section h2 { margin: 0 0 10px; font-size: clamp(26px, 4vw, 34px); letter-spacing: -.03em; line-height: 1.2; }
.section-lede { max-width: 640px; margin: 0 0 32px; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feature { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); }
.feature h3 { margin: 0 0 6px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.feature .icon { display: grid; place-items: center; width: 36px; height: 36px; margin-bottom: 14px; border-radius: 10px; background: var(--soft); color: var(--violet); font-weight: 800; }

.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gallery figure { margin: 0; }
.gallery img { border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.gallery figcaption { margin-top: 10px; color: var(--muted); font-size: 14px; }

.steps { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 18px 20px 18px 66px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); counter-increment: step; }
.steps li::before { content: counter(step); position: absolute; left: 20px; top: 18px; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--soft); color: var(--violet); font-weight: 800; }
.steps strong { display: block; margin-bottom: 2px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }
.copy-row { display: inline-flex; align-items: center; gap: 8px; margin-top: 8px; }
.copy-row button { padding: 5px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--canvas); color: var(--ink); font: 600 13px/1.4 inherit; cursor: pointer; white-space: nowrap; }

.notice { margin-top: 22px; padding: 18px 20px; border: 1px solid var(--warn-line); border-radius: 14px; background: var(--warn-bg); color: var(--warn-ink); font-size: 15px; }
.notice ul { margin: 8px 0 0; padding-left: 20px; }
.notice li + li { margin-top: 4px; }

.privacy-card { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; padding: 32px; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); }
.privacy-card ul { margin: 0 0 18px; padding-left: 20px; color: var(--muted); }
.privacy-card li + li { margin-top: 6px; }
.privacy-card img { border-radius: 12px; border: 1px solid var(--line); }

.site-footer { padding: 32px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

.doc { max-width: 760px; padding: 48px 0 72px; }
.doc h1 { margin: 0 0 6px; font-size: 36px; letter-spacing: -.03em; }
.doc h2 { margin: 36px 0 8px; font-size: 21px; }
.doc .updated { margin: 0 0 24px; color: var(--muted); }
.doc p, .doc li { color: var(--ink); }
.doc li + li { margin-top: 6px; }

@media (max-width: 860px) {
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .privacy-card { grid-template-columns: 1fr; padding: 22px; }
}
@media (max-width: 600px) {
  .site-nav { gap: 14px; }
  .site-nav a.hide-sm { display: none; }
  .hero { padding-top: 48px; }
  .features, .gallery { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
  .steps li { padding-left: 60px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }