/* VoxAI — vox.anvilon.net
   near-black -> warm off-white card shift, heavy grotesk headline / small mono labels,
   3-color max, weighted physical transitions, scroll-triggered reveals */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* tokens pulled straight from the real VoxAI extension UI (popup.html --bg/--surface/--purple, dark variant) */
  --ink: #171310;
  --paper: #faf5ee;
  --accent: #c96a55;
  --ink-soft: #1d1815;
  --paper-soft: #f2e9dc;
  --text-on-ink: #ece3d5;
  --text-on-ink-dim: #a08d78;
  --text-on-paper: #2b241d;
  --text-on-paper-dim: #8c7d6c;
  --ease-weighted: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-slow: 0.9s;
  --dur-base: 0.6s;
  --dur-fast: 0.25s;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text-on-ink);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  overflow-x: hidden;
}

[dir="rtl"] body { font-family: Tahoma, system-ui, sans-serif; }

.display {
  font-family: 'Instrument Serif', Georgia, serif;
  font-optical-sizing: auto;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ---------- intro video overlay ---------- */
#intro {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--dur-slow) var(--ease-weighted), visibility var(--dur-slow);
}
#intro.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
#intro video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#intro .skip, #intro .mute {
  position: absolute;
  bottom: 28px;
  background: rgba(23,19,16,0.72);
  border: 1px solid rgba(244,239,230,0.22);
  color: var(--text-on-ink);
  padding: 10px 18px;
  border-radius: 3px;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-weighted);
}
#intro .skip { right: 28px; }
#intro .mute { right: 148px; }
#intro .skip:hover, #intro .mute:hover { background: rgba(23,19,16,0.9); }
#intro .brandmark {
  position: absolute;
  top: 28px;
  left: 28px;
  color: var(--text-on-ink-dim);
}

/* ---------- scroll progress ---------- */
#progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  z-index: 60;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.1s linear;
}

/* ---------- hero entrance (on load, not scroll) ---------- */
.hero .mono, .hero h1, .hero .lede, .hero .actions {
  opacity: 0;
  transform: translateY(22px);
  animation: heroin 0.9s var(--ease-weighted) forwards;
}
.hero .mono { animation-delay: 0.05s; }
.hero h1 { animation-delay: 0.15s; }
.hero .lede { animation-delay: 0.32s; }
.hero .actions { animation-delay: 0.46s; }
@keyframes heroin { to { opacity: 1; transform: translateY(0); } }

/* ---------- staggered children inside revealed grids/chip rows ---------- */
.shiftcard.in .grid .card,
.shiftcard.in .chips .chip,
.shiftcard.in .steps .step {
  opacity: 0;
  transform: translateY(16px);
  animation: stagup 0.55s var(--ease-weighted) forwards;
  animation-delay: calc(var(--i, 0) * 70ms);
}
@keyframes stagup { to { opacity: 1; transform: translateY(0); } }

/* ---------- product shot: gentle scroll parallax ---------- */
.shot-wrap { perspective: 1000px; }
.shot {
  transition: transform 0.1s linear;
  will-change: transform;
}

/* ---------- nav ---------- */
nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 6vw;
  background: linear-gradient(180deg, var(--ink) 60%, transparent);
}
nav .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  color: var(--text-on-ink);
  text-decoration: none;
}
nav .logo img { width: 26px; height: 26px; border-radius: 7px; }
nav .right { display: flex; align-items: center; gap: 22px; }
nav a.cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform var(--dur-fast) var(--ease-weighted), box-shadow var(--dur-fast);
  display: inline-block;
}
nav a.cta:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(201,106,85,0.35); }

/* ---------- language switcher ---------- */
.langsw { position: relative; }
.langsw button {
  background: transparent;
  border: 1px solid rgba(244,239,230,0.25);
  color: var(--text-on-ink-dim);
  border-radius: 4px;
  padding: 8px 14px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.langsw .menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--ink-soft);
  border: 1px solid rgba(244,239,230,0.12);
  border-radius: 14px;
  padding: 8px;
  min-width: 170px;
  max-height: 60vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.langsw.open .menu { display: block; }
.langsw .menu a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-on-ink-dim);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
}
.langsw .menu a:hover, .langsw .menu a.active { background: rgba(201,106,85,0.18); color: var(--text-on-ink); }

/* ---------- hero ---------- */
.hero {
  padding: 8vh 6vw 14vh;
  max-width: 1100px;
}
.hero .mono { color: var(--accent); margin-bottom: 22px; display: block; }
.hero h1 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(2.8rem, 7.5vw, 5.6rem);
  line-height: 0.96;
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
  margin: 0 0 28px;
}
.hero h1 em { color: var(--accent); font-style: italic; }
.hero .lede {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--text-on-ink-dim);
  max-width: 640px;
  line-height: 1.55;
  margin: 0 0 36px;
}
.hero .actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.hero .actions .cta {
  background: var(--accent);
  color: #fff;
  padding: 16px 30px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.02rem;
  transition: transform var(--dur-fast) var(--ease-weighted), box-shadow var(--dur-fast);
  display: inline-block;
}
.hero .actions .cta:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(201,106,85,0.4); }
.hero .actions .note { color: var(--text-on-ink-dim); font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; letter-spacing: 0.06em; }

/* ---------- real product screenshot ---------- */
.shot-wrap { padding: 0 6vw 10vh; display: flex; justify-content: center; }
.shot {
  max-width: 380px;
  width: 100%;
  border-radius: 6px;
  border: 1px solid rgba(244,239,230,0.14);
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
}

/* ---------- sections: reveal + ink->paper card shift ---------- */
section.block {
  padding: 12vh 6vw;
  max-width: 1200px;
  margin: 0 auto;
}
.reveal { opacity: 0; transform: translateY(28px); transition: opacity var(--dur-base) var(--ease-weighted), transform var(--dur-base) var(--ease-weighted); }
.reveal.in { opacity: 1; transform: translateY(0); }

.section-label { display: block; color: var(--text-on-ink-dim); margin-bottom: 18px; }
.section-title {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.005em;
  margin: 0 0 20px;
  max-width: 780px;
}
.section-body { color: var(--text-on-ink-dim); font-size: 1.05rem; line-height: 1.7; max-width: 720px; }
.section-body p { margin: 0 0 16px; }

/* the "card" that shifts near-black -> warm off-white on scroll into view */
.shiftcard {
  background: var(--ink-soft);
  color: var(--text-on-ink);
  border-radius: 24px;
  padding: 6vh 6vw;
  transition: background var(--dur-slow) var(--ease-weighted), color var(--dur-slow) var(--ease-weighted);
}
.shiftcard.in {
  background: var(--paper);
  color: var(--text-on-paper);
}
.shiftcard.in .section-label,
.shiftcard.in .section-body { color: var(--text-on-paper-dim); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.card {
  background: rgba(244,239,230,0.04);
  border: 1px solid rgba(244,239,230,0.1);
  border-radius: 18px;
  padding: 28px;
  transition: transform var(--dur-fast) var(--ease-weighted), border-color var(--dur-fast);
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.shiftcard.in .card { background: rgba(20,20,26,0.03); border-color: rgba(20,20,26,0.1); }
.shiftcard.in .card:hover { border-color: var(--accent); }
.card h3 { font-size: 1.08rem; margin: 0 0 10px; letter-spacing: -0.01em; }
.card p { margin: 0; font-size: 0.95rem; line-height: 1.55; opacity: 0.85; }

.chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.chip {
  border: 1px solid rgba(244,239,230,0.18);
  border-radius: 4px;
  padding: 12px 20px;
  font-size: 0.92rem;
}
.shiftcard.in .chip { border-color: rgba(20,20,26,0.15); }
.chip strong { color: var(--accent); }

.steps { counter-reset: step; margin-top: 40px; display: grid; gap: 18px; }
.step { display: flex; gap: 20px; align-items: flex-start; }
.step .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 50%;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step p { margin: 0; padding-top: 5px; line-height: 1.6; }

footer {
  padding: 10vh 6vw 6vh;
  text-align: center;
  border-top: 1px solid rgba(244,239,230,0.08);
}
footer .section-title { max-width: none; }
footer .cta {
  background: var(--accent);
  color: #fff;
  padding: 16px 34px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
  margin-top: 30px;
  transition: transform var(--dur-fast) var(--ease-weighted), box-shadow var(--dur-fast);
}
footer .cta:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(201,106,85,0.4); }
footer .fineprint { margin-top: 14px; color: var(--text-on-ink-dim); font-size: 0.8rem; }
footer .fineprint:first-of-type { margin-top: 46px; }
footer .fineprint a { color: var(--text-on-ink-dim); text-decoration: underline; text-underline-offset: 3px; }
footer .fineprint a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .hero { padding: 14vh 6vw 10vh; }
  section.block { padding: 8vh 6vw; }
  .shiftcard { border-radius: 18px; padding: 6vh 6vw; }
}