:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-elev: #1a1a26;
  --border: #232336;
  --text: #e6e6ef;
  --text-dim: #8a8aa0;
  --accent: #00d4aa;
  --accent-dim: #00a888;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Noto Sans SC', sans-serif;
  --max: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.nav-logo::before { content: '> '; color: var(--text-dim); }
.nav-links { display: flex; gap: 1.5rem; list-style: none; font-family: var(--mono); font-size: .9rem; }
.nav-links a { color: var(--text-dim); transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

section { max-width: var(--max); margin: 0 auto; padding: 5rem 2rem; }

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 3rem;
  align-items: center;
  padding-top: 4rem;
  padding-bottom: 4rem;
}
.hero-prompt { font-family: var(--mono); color: var(--text-dim); margin-bottom: 1rem; }
.hero-prompt span { color: var(--accent); }
.hero-title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; line-height: 1.1; margin-bottom: 1rem; }
.hero-title .accent { color: var(--accent); }
.hero-sub { color: var(--text-dim); font-size: 1.1rem; margin-bottom: 1.5rem; }
.hero-stats { display: flex; gap: 1.5rem; font-family: var(--mono); margin-bottom: 2rem; flex-wrap: wrap; }
.hero-stats .stat { display: flex; flex-direction: column; }
.hero-stats .num { color: var(--accent); font-size: 1.5rem; font-weight: 700; }
.hero-stats .lbl { color: var(--text-dim); font-size: .8rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  font-family: var(--mono);
  font-size: .9rem;
  padding: .7rem 1.4rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: all .2s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.btn-primary { background: var(--accent); color: #00120e; border-color: var(--accent); font-weight: 600; }
.btn-primary:hover { background: var(--accent-dim); transform: translateY(-2px); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* TERMINAL */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.terminal-bar { display: flex; align-items: center; gap: .5rem; padding: .7rem 1rem; background: var(--bg-elev); border-bottom: 1px solid var(--border); }
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; background: #444; }
.terminal-dot:nth-child(1) { background: #ff5f56; }
.terminal-dot:nth-child(2) { background: #ffbd2e; }
.terminal-dot:nth-child(3) { background: #27c93f; }
.terminal-title { margin-left: auto; font-family: var(--mono); font-size: .75rem; color: var(--text-dim); }
.terminal-body { padding: 1.2rem; font-family: var(--mono); font-size: .85rem; min-height: 180px; }
.terminal-body .line { white-space: pre-wrap; word-break: break-all; }
.terminal-body .cmd { color: var(--text); }
.terminal-body .cmd::before { content: '$ '; color: var(--accent); }
.terminal-body .out { color: var(--text-dim); }
.cursor { display: inline-block; width: 8px; background: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* SECTION HEADER */
.section-header { margin-bottom: 2.5rem; }
.section-label { font-family: var(--mono); color: var(--accent); font-size: .85rem; }
.section-label::before { content: '// '; color: var(--text-dim); }
.section-title { font-size: 1.8rem; font-weight: 600; }

/* BROWSERS */
.browser-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.browser-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: all .2s;
}
.browser-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.browser-card h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.browser-card .impl { font-family: var(--mono); font-size: .7rem; color: var(--accent); border: 1px solid var(--accent-dim); padding: .15rem .5rem; border-radius: 4px; display: inline-block; margin-bottom: .8rem; }
.browser-card p { color: var(--text-dim); font-size: .9rem; margin-bottom: 1rem; }
.browser-card a { font-family: var(--mono); font-size: .85rem; color: var(--accent); }
.browser-card a:hover { text-decoration: underline; }

#browsers { padding-top: 2.5rem; padding-bottom: 2.5rem; }
#browsers .section-header { margin-bottom: 1.2rem; }
.browser-grid { display: block; }
.browser-card { padding: .4rem 1.2rem; }
.browser-card:hover { transform: none; }
.browser-row { display: flex; align-items: center; gap: .8rem; padding: .65rem 0; border-bottom: 1px solid var(--border); }
.browser-row:last-child { border-bottom: none; }
.browser-name { font-size: .92rem; font-weight: 600; }
.browser-card .impl { margin: 0; }
.browser-row a { font-family: var(--mono); font-size: .8rem; color: var(--accent); margin-left: auto; }
.browser-na { font-size: .8rem; color: var(--text-dim); margin-left: auto; }

/* TABS */
.tabs { display: flex; gap: .5rem; margin-bottom: 2rem; overflow-x: auto; padding-bottom: .5rem; -webkit-overflow-scrolling: touch; }
.tab {
  font-family: var(--mono);
  font-size: .85rem;
  white-space: nowrap;
  padding: .5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .2s;
}
.tab:hover { color: var(--text); }
.tab.active { background: var(--accent); color: #00120e; border-color: var(--accent); font-weight: 600; }

/* EXTENSION CARDS */
.ext-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.2rem; }
.ext-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
  transition: all .2s;
}
.ext-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.ext-head { display: flex; align-items: flex-start; justify-content: space-between; gap: .5rem; margin-bottom: .5rem; }
.ext-name { font-size: 1.05rem; font-weight: 600; }
.ext-size { font-family: var(--mono); font-size: .7rem; color: var(--text-dim); border: 1px solid var(--border); padding: .15rem .45rem; border-radius: 4px; white-space: nowrap; }
.ext-desc { color: var(--text-dim); font-size: .88rem; margin-bottom: 1.2rem; flex: 1; }
.ext-actions { display: flex; gap: .6rem; }
.ext-actions a {
  font-family: var(--mono);
  font-size: .8rem;
  padding: .5rem .9rem;
  border-radius: 6px;
  transition: all .2s;
  flex: 1;
  text-align: center;
}
.ext-dl { background: var(--accent); color: #00120e; font-weight: 600; }
.ext-dl:hover { background: var(--accent-dim); }
.ext-store { border: 1px solid var(--border); color: var(--text-dim); }
.ext-store:hover { border-color: var(--accent); color: var(--accent); }

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 3rem 2rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.footer-text { font-family: var(--mono); font-size: .85rem; color: var(--text-dim); }
.footer-text a { color: var(--accent); }
.footer-qr { display: flex; align-items: center; gap: 1rem; }
.footer-qr img { width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 6px; }
.footer-qr .qr-cap { font-family: var(--mono); font-size: .8rem; color: var(--text-dim); max-width: 140px; }

/* QR FLOAT */
.qr-float { position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 200; }
.qr-float-btn {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--accent); color: #00120e;
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(0,212,170,.4);
  transition: transform .2s;
}
.qr-float-btn:hover { transform: scale(1.08); }
.qr-pop {
  position: absolute; right: 0; bottom: 64px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 12px; padding: 1rem; text-align: center;
  opacity: 0; pointer-events: none; transform: translateY(8px);
  transition: all .2s;
}
.qr-float.open .qr-pop { opacity: 1; pointer-events: auto; transform: translateY(0); }
.qr-pop img { width: 160px; height: 160px; background: #fff; padding: 8px; border-radius: 8px; }
.qr-pop p { font-family: var(--mono); font-size: .78rem; color: var(--text-dim); margin-top: .6rem; }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav { padding: 1rem 1.2rem; }
  .nav-links { position: fixed; top: 60px; right: 0; flex-direction: column; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 0 0 0 12px; padding: 1rem 1.5rem; gap: 1rem; transform: translateX(110%); transition: transform .25s; }
  .nav-links.open { transform: none; }
  .nav-toggle { display: block; }
  section { padding: 3rem 1.2rem; }
  .hero { grid-template-columns: 1fr; gap: 2rem; padding-top: 2rem; }
  .browser-grid { grid-template-columns: 1fr; }
  .ext-grid { grid-template-columns: 1fr; }
  .qr-float { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}