:root {
  --bg: #0e1110; --panel: #161b19; --line: #25302b; --text: #e9efec; --muted: #9aa8a1;
  --accent: #2fd17d; --accent-ink: #062a17; --glow: rgba(47, 209, 125, .18);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(1200px 600px at 75% -10%, var(--glow), transparent 60%), var(--bg); color: var(--text);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif; }
a { color: inherit; text-decoration: none; }
.muted { color: var(--muted); } .tiny { font-size: 12px; } .accent { color: var(--accent); }

.nav { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(16px, calc((100% - 1120px) / 2)); background: rgba(14, 17, 16, .82); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { border-radius: 7px; }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav nav a:not(.btn):hover { color: var(--accent); }

.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; border-radius: 12px; background: var(--accent); color: var(--accent-ink);
  font-weight: 700; box-shadow: 0 10px 30px -10px var(--accent); transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px var(--accent); }
.btn.small { padding: 8px 16px; border-radius: 9px; box-shadow: none; }

main { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.hero { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: center; padding: 72px 0 56px; }
.pill { display: inline-block; padding: 5px 12px; border: 1px solid var(--line); border-radius: 99px; color: var(--muted); font-size: 13px; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 18px 0; letter-spacing: -.02em; }
.lead { font-size: 18px; color: var(--muted); max-width: 560px; }
.cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 28px; }

.live { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: 0 30px 60px -30px #000; }
.live-head { display: flex; align-items: center; gap: 8px; font-weight: 600; color: var(--accent); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(47, 209, 125, .6); } 100% { box-shadow: 0 0 0 10px rgba(47, 209, 125, 0); } }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; }
.stats div { background: #0f1412; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.stats b { display: block; font-size: 26px; font-variant-numeric: tabular-nums; }
.stats span { color: var(--muted); font-size: 13px; }
#spark { width: 100%; height: 56px; display: block; }

h2 { font-size: 30px; margin: 0 0 22px; letter-spacing: -.01em; }
.features { padding: 40px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.grid article { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; transition: border-color .2s, transform .2s; }
.grid article:hover { border-color: var(--accent); transform: translateY(-3px); }
.grid i { font-style: normal; font-size: 26px; }
.grid h3 { margin: 10px 0 6px; font-size: 17px; }
.grid p { margin: 0; color: var(--muted); font-size: 15px; }

.privacy { padding: 40px 0; }
.privacy ul { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 22px 22px 22px 42px; margin: 0; color: var(--muted); }
.privacy li { margin: 8px 0; } .privacy b { color: var(--text); }
.final { text-align: center; padding: 56px 0 72px; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 26px 16px; border-top: 1px solid var(--line); }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  .nav nav a:not(.btn) { display: none; }
}
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } .btn, .grid article { transition: none; } }

/* Hero extras + screenshot tour */
.replaces { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 26px 0 0; }
.replaces li { padding: 4px 11px; border-radius: 99px; background: rgba(47, 209, 125, .08); border: 1px solid rgba(47, 209, 125, .25); color: var(--text); font-size: 13px; }
.lead b { color: var(--text); }
.tour { padding: 32px 0 16px; text-align: center; }
.tabs { display: inline-flex; gap: 6px; padding: 5px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); margin-bottom: 22px; }
.tabs button { font: inherit; font-size: 15px; color: var(--muted); background: none; border: 0; padding: 8px 16px; border-radius: 8px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); font-weight: 700; }
.window { margin: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--panel);
  box-shadow: 0 40px 80px -30px #000, 0 0 0 1px rgba(47, 209, 125, .08), 0 0 120px -40px var(--accent); }
.window-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; }
.window-bar span { width: 11px; height: 11px; border-radius: 50%; background: #3a4440; }
.window-bar b { margin-left: 8px; font-size: 13px; color: var(--muted); font-weight: 600; }
.window img { display: block; width: 100%; height: auto; transition: opacity .25s; }
.window figcaption { padding: 14px 18px; color: var(--muted); font-size: 15px; border-top: 1px solid var(--line); }
@media (max-width: 820px) { .tabs button { padding: 7px 10px; font-size: 14px; } }