:root {
  --bg: #0a0b0f;
  --bg-elev: #12141c;
  --bg-elev-2: #171a24;
  --text: #e7e9ef;
  --text-dim: #9aa0b4;
  --text-faint: #6b7184;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --accent-a: #8b5cf6;
  --accent-b: #06b6d4;
  --gradient: linear-gradient(135deg, var(--accent-a) 0%, var(--accent-b) 100%);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.6);
  --maxw: 1120px;
  --maxw-doc: 48rem;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
  transition: border-color 150ms ease, color 150ms ease;
}
a:hover { border-bottom-color: var(--accent-b); }

a.plain, nav a, .btn, .card a, .footer a, .brand {
  border-bottom: none;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.25rem, 5vw + 1rem, 4.25rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.25rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; color: var(--text); }
p.dim { color: var(--text-dim); }

code, pre, kbd {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ─── Nav ──────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 15, 0.72);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: var(--text);
}
.brand .mark {
  display: inline-block;
  width: 28px;
  height: 28px;
  background: var(--text);
  -webkit-mask: url("/assets/logo-mono.svg") no-repeat center / contain;
          mask: url("/assets/logo-mono.svg") no-repeat center / contain;
  transition: background 200ms ease;
}
.brand:hover .mark {
  background: var(--accent-b);
}
.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 0.95rem;
}
.nav-links a { color: var(--text-dim); }
.nav-links a:hover { color: var(--text); }
@media (max-width: 640px) {
  .nav-links { gap: 14px; font-size: 0.88rem; }
  .nav-links a.hide-sm { display: none; }
}

/* ─── Hero ─────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: clamp(56px, 8vw, 120px) 24px clamp(72px, 10vw, 140px);
  overflow: hidden;
  isolation: isolate;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.42;
  z-index: -1;
  pointer-events: none;
}
.hero::before { background: var(--accent-a); top: -140px; left: -80px; }
.hero::after  { background: var(--accent-b); bottom: -180px; right: -80px; }

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: left;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 20px;
}
.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gradient);
}
.hero h1 { max-width: 18ch; }
.hero .grad {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lead {
  max-width: 58ch;
  font-size: clamp(1.05rem, 1vw + 0.9rem, 1.25rem);
  color: var(--text-dim);
  margin-top: 0.75em;
}
.cta-row {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 200ms ease, background 200ms ease;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient);
  color: #0a0b0f;
  box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.55);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 36px -10px rgba(6, 182, 212, 0.55); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--accent-b); color: var(--text); }

/* ─── Sections ─────────────────────────────────────────── */
section { padding: clamp(56px, 7vw, 96px) 24px; }
.section-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}
.section-head {
  max-width: 60ch;
  margin-bottom: 36px;
}
.section-head .kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-b);
  margin-bottom: 8px;
}
.section-head p { color: var(--text-dim); font-size: 1.05rem; }

/* ─── Cards ────────────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  transition: border-color 200ms ease, transform 200ms ease;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(139, 92, 246, 0.14);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  color: var(--accent-a);
  font-size: 18px;
  border: 1px solid rgba(139, 92, 246, 0.25);
}
.card h3 { margin-bottom: 6px; }
.card p { color: var(--text-dim); margin: 0; font-size: 0.95rem; }

/* ─── Pillars ──────────────────────────────────────────── */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px 40px;
  counter-reset: pillar;
}
.pillar { counter-increment: pillar; }
.pillar::before {
  content: counter(pillar, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-b);
  display: block;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}
.pillar h3 { margin-bottom: 6px; }
.pillar p { color: var(--text-dim); font-size: 0.95rem; margin: 0; }

/* ─── Contact ──────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.contact-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.contact-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.contact-card a {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text);
  border-bottom: 1px solid var(--border-strong);
}
.contact-card a:hover { border-bottom-color: var(--accent-b); }
.contact-note {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-top: 20px;
  max-width: 60ch;
}

/* ─── Footer ───────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  color: var(--text-faint);
  font-size: 0.88rem;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.footer a { color: var(--text-dim); border-bottom: none; }
.footer a:hover { color: var(--text); }

/* ─── Document (privacy) layout ────────────────────────── */
.doc {
  max-width: var(--maxw-doc);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px) 24px;
}
.doc .updated {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: -0.5em;
  margin-bottom: 2em;
}
.doc h2 {
  margin-top: 2.4em;
  padding-top: 1.2em;
  border-top: 1px solid var(--border);
}
.doc h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 1.6em; }
.doc ul, .doc ol { padding-left: 1.4em; }
.doc li { margin-bottom: 0.4em; }
.doc li::marker { color: var(--text-faint); }
.doc code {
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid var(--border);
}
.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0 1.8em;
  font-size: 0.94rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: block;
  overflow-x: auto;
}
.doc th, .doc td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.doc th {
  background: var(--bg-elev);
  font-weight: 600;
  color: var(--text);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.doc tr:last-child td { border-bottom: 0; }
.doc blockquote {
  border-left: 3px solid var(--accent-a);
  margin: 1.2em 0;
  padding: 0.2em 1em;
  color: var(--text-dim);
  background: var(--bg-elev);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.doc .back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.9rem;
  border-bottom: none;
  margin-bottom: 1em;
}
.doc .back:hover { color: var(--text); }

/* ─── Apps list (privacy index) ────────────────────────── */
.apps-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
  margin: 2em 0;
}
.apps-list li a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  transition: border-color 200ms ease;
}
.apps-list li a:hover { border-color: var(--accent-b); }
.apps-list .name { font-weight: 700; font-size: 1.05rem; }
.apps-list .desc { color: var(--text-dim); font-size: 0.9rem; }

/* ─── 404 ──────────────────────────────────────────────── */
.not-found {
  min-height: 70vh;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
}
.not-found .code {
  font-family: var(--font-mono);
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 16px;
}

/* ─── Reduced motion ──────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}