/* ============================================================
   Blockd — blockd.app
   Tokens: near-black, white glass, one pink accent per zone.
   Type: Instrument Serif (display, italic) / Instrument Sans (body)
   ============================================================ */

:root {
  --bg: #07070a;
  --bg-raised: #0d0d12;
  --glass: rgba(255, 255, 255, 0.055);
  --glass-strong: rgba(255, 255, 255, 0.09);
  --stroke: rgba(255, 255, 255, 0.10);
  --stroke-soft: rgba(255, 255, 255, 0.06);
  --text: #f2f2f5;
  --text-dim: rgba(242, 242, 245, 0.62);
  --text-faint: rgba(242, 242, 245, 0.38);
  --pink: #ff5c8a;
  --pink-soft: rgba(255, 92, 138, 0.14);
  --lavender: #9aa3d4;
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1060px;
  --sans: "Instrument Sans", -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  --serif: "Instrument Serif", "New York", Georgia, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--pink-soft); color: var(--text); }

a { color: inherit; }

/* ---------- Signature: scroll recovery bar ---------- */
.recovery-track {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.05);
  z-index: 60;
}
.recovery-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #ff5c8a, #ff7ba1);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 12px rgba(255, 92, 138, 0.45);
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 3px; left: 0; right: 0;
  z-index: 50;
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  background: rgba(7, 7, 10, 0.55);
  border-bottom: 1px solid var(--stroke-soft);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.wordmark span { color: var(--pink); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  font-size: 14.5px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 160ms ease;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.nav-cta {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text) !important;
  background: var(--glass-strong);
  border: 1px solid var(--stroke);
  padding: 8px 16px;
  border-radius: 999px;
  transition: background 160ms ease;
}
.nav-cta:hover { background: rgba(255, 255, 255, 0.14); }

/* ---------- Layout primitives ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

.day-marker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 18px;
}
.day-marker::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--pink);
  opacity: 0.7;
}
.day-marker em { color: var(--pink); font-style: normal; }

/* ---------- Hero ---------- */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  /* faint night-sky glow, echoes the app's day/night cycle */
  content: "";
  position: absolute;
  top: -30%; right: -15%;
  width: 720px; height: 720px;
  background: radial-gradient(circle, rgba(154, 163, 212, 0.10), transparent 65%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  width: 100%;
}
h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 6.2vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.015em;
}
h1 em {
  font-style: italic;
  color: var(--pink);
}
.hero-sub {
  margin-top: 22px;
  font-size: 19px;
  color: var(--text-dim);
  max-width: 46ch;
}
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 24px;
  border-radius: 999px;
  transition: transform 160ms ease, background 160ms ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--text); color: #0a0a0d; }
.btn-primary:hover { background: #fff; }
.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--stroke);
  color: var(--text);
}
.btn-ghost:hover { background: var(--glass-strong); }
.hero-note { margin-top: 18px; font-size: 13.5px; color: var(--text-faint); }

/* ---------- Hero object: the real Brain Recovery tile ---------- */
.tile-stack { display: flex; flex-direction: column; gap: 14px; }
.glass-tile {
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 18px 20px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}
.br-tile { display: flex; align-items: center; gap: 14px; }
.br-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--pink-soft);
  display: grid; place-items: center;
  font-size: 20px;
  flex-shrink: 0;
}
.br-body { flex: 1; min-width: 0; }
.br-label { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.br-bar {
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.br-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #ff5c8a, #ff7ba1);
  border-radius: 999px;
  transition: width 1.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.br-pct { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
.br-chevron { color: var(--text-faint); font-size: 18px; }
.urge-pill {
  text-align: center;
  font-weight: 600;
  font-size: 15.5px;
  padding: 16px 20px;
}
.circle-row { display: flex; justify-content: space-between; padding: 4px 6px; }
.cta-circle {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--stroke);
  display: grid; place-items: center;
  font-size: 19px;
}
.cta-circle.panic { background: rgba(255, 59, 48, 0.18); border-color: rgba(255, 59, 48, 0.35); }
.circle-label { font-size: 10.5px; color: var(--text-faint); text-align: center; margin-top: 6px; }
.circle-item { display: flex; flex-direction: column; align-items: center; }
.tile-caption {
  text-align: center;
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 4px;
}

/* ---------- Sections ---------- */
section { padding: 110px 0; border-top: 1px solid var(--stroke-soft); }
h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 22ch;
}
h2 em { font-style: italic; color: var(--pink); }
.section-sub { margin-top: 16px; color: var(--text-dim); max-width: 58ch; font-size: 17.5px; }

.feature-grid {
  margin-top: 54px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.feature {
  background: var(--glass);
  border: 1px solid var(--stroke-soft);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.feature h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 8px; }
.feature p { font-size: 14.5px; color: var(--text-dim); line-height: 1.55; }
.feature .glyph { font-size: 22px; margin-bottom: 14px; display: block; }

/* privacy section */
.privacy-claims { margin-top: 44px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 40px; max-width: 760px; }
.claim { display: flex; gap: 12px; align-items: baseline; font-size: 16px; color: var(--text-dim); }
.claim::before { content: "—"; color: var(--pink); flex-shrink: 0; }
.claim strong { color: var(--text); font-weight: 600; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--stroke-soft); padding: 54px 0 64px; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 14px; color: var(--text-dim); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.footer-note { font-size: 13px; color: var(--text-faint); margin-top: 18px; max-width: 60ch; }

/* ---------- Legal document pages ---------- */
.doc {
  max-width: 720px;
  margin: 0 auto;
  padding: 150px 24px 100px;
}
.doc h1 {
  font-size: clamp(34px, 4.5vw, 46px);
}
.doc .doc-meta { margin-top: 12px; color: var(--text-faint); font-size: 14px; }
.doc h2 {
  font-family: var(--sans);
  font-weight: 650;
  font-size: 20px;
  margin-top: 44px;
  margin-bottom: 12px;
  max-width: none;
}
.doc h3 { font-size: 16.5px; font-weight: 600; margin-top: 26px; margin-bottom: 8px; }
.doc p, .doc li { color: var(--text-dim); font-size: 16px; margin-bottom: 12px; }
.doc ul { padding-left: 22px; margin-bottom: 14px; }
.doc strong { color: var(--text); font-weight: 600; }
.doc hr { border: none; border-top: 1px solid var(--stroke-soft); margin: 36px 0; }
.doc a { color: var(--lavender); }

/* ---------- Motion & a11y ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .br-bar-fill { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .feature-grid { grid-template-columns: 1fr; }
  .privacy-claims { grid-template-columns: 1fr; }
  .nav-links a:not(.nav-cta) { display: none; }
  section { padding: 80px 0; }
}

/* ---------- VPN explainer (privacy section) ---------- */
.vpn-note { margin-top: 40px; font-size: 15px; max-width: 64ch; padding-top: 22px; border-top: 1px solid var(--stroke-soft); }
.vpn-note strong { color: var(--text); font-weight: 600; }
.vpn-note a { color: var(--lavender); }
.doc .doc-meta { line-height: 1.9; }