:root {
  --bg: #050811;
  --bg2: #0B1224;
  --surface: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.11);
  --text: #F2F5FB;
  --soft: #A3ADC2;
  --faint: #6B7690;
  --mint: #34E0A1;
  --mint2: #14B8A6;
  --sky: #5AB8FF;
  --gold: #FFC857;
  --coral: #FF5C7A;
  --violet: #8B7CFF;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 85% -10%, rgba(52, 224, 161, 0.14), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(139, 124, 255, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg2), var(--bg) 60%);
  background-attachment: fixed;
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--mint); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* header */
header.top { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); background: rgba(5, 8, 17, 0.72); border-bottom: 1px solid var(--border); }
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 20px; letter-spacing: -0.5px; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
.brand:hover { text-decoration: none; }
nav.links { margin-left: auto; display: flex; gap: 18px; font-size: 14px; }
nav.links a { color: var(--soft); }
nav.links a.lang { color: var(--text); border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; }

/* hero */
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding: 72px 0 56px; }
.eyebrow { display: inline-block; color: var(--mint); background: rgba(52, 224, 161, 0.12); border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 700; }
h1 { font-size: clamp(38px, 6vw, 62px); line-height: 1.05; letter-spacing: -2px; margin: 18px 0 16px; }
h1 .grad { background: linear-gradient(90deg, #5BF5C0, var(--mint2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--soft); font-size: 19px; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; gap: 10px; border-radius: 16px; padding: 14px 20px; font-weight: 800; border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn.primary { background: linear-gradient(90deg, #3EF0B0, var(--mint2)); color: #00281A; border: 0; box-shadow: 0 10px 30px rgba(52, 224, 161, 0.3); }
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn small { display: block; font-weight: 600; font-size: 11px; opacity: 0.8; line-height: 1; }
.note { color: var(--faint); font-size: 13px; margin-top: 12px; }

/* phone mock */
.phone { width: 300px; margin: 0 auto; border-radius: 44px; padding: 14px; background: #0A0F1E; border: 1px solid var(--border); box-shadow: 0 40px 80px rgba(0, 0, 0, 0.55), 0 0 0 8px rgba(255, 255, 255, 0.03); }
.screen { border-radius: 32px; padding: 26px 18px 20px; background: radial-gradient(260px 200px at 80% 0%, rgba(52, 224, 161, 0.18), transparent 70%), linear-gradient(180deg, #0B1224, #050811); }
.screen .hi { color: var(--soft); font-size: 12px; }
.screen .ttl { font-weight: 800; font-size: 18px; margin-bottom: 14px; }
.ring { width: 190px; height: 190px; margin: 6px auto 10px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--mint) 0 68%, rgba(255, 255, 255, 0.08) 68% 100%); position: relative; }
.ring::before { content: ""; position: absolute; inset: 13px; border-radius: 50%; background: #0A1120; }
.ring div { position: relative; text-align: center; }
.ring b { display: block; font-size: 58px; line-height: 1; letter-spacing: -2px; }
.ring span { color: var(--soft); font-size: 12px; }
.ring i { display: inline-block; margin-top: 6px; font-style: normal; font-weight: 700; color: var(--mint); font-size: 13px; background: rgba(255, 255, 255, 0.06); padding: 2px 9px; border-radius: 10px; font-variant-numeric: tabular-nums; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.tile { background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border); border-radius: 14px; padding: 10px; }
.tile b { display: block; font-size: 16px; }
.tile span { color: var(--soft); font-size: 11px; }
.sos { margin: 12px auto 0; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; font-weight: 900; font-size: 13px; color: #fff;
  background: linear-gradient(135deg, #FF7A8A, #E23D5D); box-shadow: 0 0 24px rgba(255, 92, 122, 0.5); }

/* sections */
section { padding: 56px 0; }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -1px; margin: 0 0 10px; }
.sub { color: var(--soft); margin: 0 0 32px; max-width: 40em; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 22px; }
.card .ic { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; font-size: 22px; margin-bottom: 12px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--soft); font-size: 15px; }
.chat { max-width: 560px; }
.bubble { border-radius: 20px; padding: 12px 16px; margin: 8px 0; max-width: 85%; }
.bubble.me { margin-left: auto; background: linear-gradient(90deg, #7CC8FF, #6C7CFF); color: #fff; border-bottom-right-radius: 6px; }
.bubble.ai { background: #1A2440; border-bottom-left-radius: 6px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.plan h3 { margin: 0; }
.plan ul { margin: 12px 0 0; padding-left: 18px; color: var(--soft); }
.plan.pro { border-color: rgba(255, 200, 87, 0.45); background: linear-gradient(135deg, rgba(255, 200, 87, 0.12), rgba(255, 200, 87, 0.02)); }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 14px 18px; margin: 10px 0; }
summary { cursor: pointer; font-weight: 700; }
details p { color: var(--soft); margin: 10px 0 0; }

/* legal pages */
.legal { max-width: 760px; padding: 48px 20px 72px; }
.legal h1 { font-size: 40px; letter-spacing: -1px; }
.legal h2 { font-size: 22px; margin-top: 32px; letter-spacing: 0; }
.legal h3 { font-size: 17px; margin: 18px 0 6px; }
.legal p, .legal li { color: #D3D9E6; }
.legal .muted { color: var(--faint); }
.legal table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.legal th, .legal td { text-align: left; border-bottom: 1px solid var(--border); padding: 8px 6px; vertical-align: top; }
.legal .box { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 14px 18px; }

footer { border-top: 1px solid var(--border); padding: 28px 0 40px; color: var(--faint); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; }
footer a { color: var(--soft); }
footer .sp { margin-left: auto; }

@media (max-width: 860px) {
  .hero, .split { grid-template-columns: 1fr; gap: 36px; padding-top: 40px; }
  .grid { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  nav.links a:not(.lang) { display: none; }
  footer .sp { margin-left: 0; }
}