:root {
  --bg: #000;
  --ink: #fff;
  --muted: #a1a1a1;
  --faint: #5c5c5c;
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.18);
  --card: #0a0a0a;
  --font: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Consolas, monospace;
  --gutter: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2 { text-wrap: balance; }
p { text-wrap: pretty; }
code { font: 500 0.88em var(--mono); background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(12px + env(safe-area-inset-top)) var(--gutter) 12px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -0.01em; }
.logo .logo-mark {
  width: 22px; height: 22px; border-radius: 7px; background: var(--ink); position: relative; overflow: hidden;
}
.logo .logo-mark::after {
  content: ""; position: absolute; inset: 0;
  background: conic-gradient(from 0deg, transparent 0 78%, rgba(0, 0, 0, 0.6) 100%);
  animation: sweep 2.8s linear infinite;
}
@keyframes sweep { to { transform: rotate(360deg); } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 20px; border-radius: 999px;
  font: 600 15px var(--font); letter-spacing: -0.01em; text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.97); }
.btn-solid { background: var(--ink); color: var(--bg); }
.btn-solid:hover { opacity: 0.88; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--ink); }
.nav-cta { height: 38px; padding: 0 16px; font-size: 14px; }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(40px, 8vw, 96px) var(--gutter) clamp(56px, 8vw, 104px);
}
.eyebrow { font: 600 12px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
h1 {
  margin-top: 18px;
  font-size: clamp(44px, 7.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 800;
}
.lede { margin-top: 22px; max-width: 30em; font-size: clamp(16px, 1.6vw, 19px); color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.fine { margin-top: 14px; font-size: 13.5px; color: var(--faint); min-height: 1.5em; }

.shot {
  margin: 0;
  justify-self: center;
  width: min(100%, 380px);
  border: 1px solid var(--line-2);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.03), 0 40px 120px -40px rgba(255, 255, 255, 0.14);
  animation: rise 0.8s var(--ease) both;
}
.shot img { display: block; width: 100%; height: auto; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } }
.hero-copy > * { animation: rise 0.7s var(--ease) both; }
.hero-copy > :nth-child(2) { animation-delay: 0.05s; }
.hero-copy > :nth-child(3) { animation-delay: 0.1s; }
.hero-copy > :nth-child(4) { animation-delay: 0.15s; }

/* ---------- sections ---------- */
section:not(.hero) { max-width: 1160px; margin: 0 auto; padding: clamp(56px, 8vw, 96px) var(--gutter); border-top: 1px solid var(--line); }
h2 { font-size: clamp(30px, 4.2vw, 48px); line-height: 1.04; letter-spacing: -0.035em; font-weight: 800; }
h3 { font-size: 18px; letter-spacing: -0.02em; font-weight: 700; }

.platforms { margin-top: 40px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
.platform { padding: 28px; border: 1px solid var(--line-2); border-radius: 20px; background: var(--card); display: grid; gap: 18px; }
.platform .btn { width: 100%; }
.platform ol { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; display: grid; gap: 8px; }
.platform ol a { color: var(--ink); text-underline-offset: 3px; }
.platform.muted { border-color: var(--line); }
.platform.muted p:not(.eyebrow) { color: var(--muted); font-size: 15px; }
.platform .soon { color: var(--ink) !important; font-size: 22px !important; font-weight: 700; letter-spacing: -0.02em; }

.features { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; padding-top: 0 !important; padding-bottom: 0 !important; }
.features article { padding: clamp(32px, 4vw, 48px) 24px clamp(32px, 4vw, 48px) 0; }
.features article + article { padding-left: 24px; border-left: 1px solid var(--line); }
.features p { margin-top: 10px; color: var(--muted); font-size: 15px; }

.proof { text-align: center; }
.sources { margin-top: 22px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 40px; font-size: clamp(22px, 3vw, 32px); font-weight: 700; letter-spacing: -0.03em; }
.proof .fine { max-width: 34em; margin: 22px auto 0; }

.site-foot {
  max-width: 1160px; margin: 0 auto;
  padding: 28px var(--gutter) calc(28px + env(safe-area-inset-bottom));
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  border-top: 1px solid var(--line); color: var(--faint); font-size: 13.5px;
}

/* ---------- mobile ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); padding-top: 28px; gap: 24px; }
  .hero-copy { text-align: left; }
  .shot { width: min(100%, 340px); }
  .platforms { grid-template-columns: minmax(0, 1fr); }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .features article:nth-child(3) { padding-left: 0; border-left: 0; }
  .features article:nth-child(n + 3) { border-top: 1px solid var(--line); }
}
@media (max-width: 600px) {
  h1 { margin-top: 12px; }
  .lede { margin-top: 14px; }
  .hero-actions { margin-top: 22px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .hero-actions .btn-ghost { display: none; }
  .nav-cta { display: none; }
  .features { grid-template-columns: minmax(0, 1fr); }
  .features article, .features article + article { padding: 28px 0; border-left: 0; }
  .features article + article { border-top: 1px solid var(--line); }
  .platform { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- policy page ---------- */
.doc { max-width: 720px; margin: 0 auto; padding: clamp(40px, 8vw, 88px) var(--gutter); }
.doc h1 { font-size: clamp(40px, 6vw, 64px); }
.doc h2 { margin-top: 48px; font-size: 22px; letter-spacing: -0.02em; }
.doc p, .doc li { color: var(--muted); }
.doc p + p, .doc h2 + p, .doc h2 + ul { margin-top: 12px; }
.doc ul { padding-left: 20px; display: grid; gap: 10px; }
.doc b { color: var(--ink); font-weight: 600; }