:root {
  --bg: #05080c;
  --panel: #0b1118;
  --panel-2: #0e1520;
  --line: #182231;
  --text: #dbe7f3;
  --muted: #8296ad;
  --accent: #22d3ee;
  --accent-2: #818cf8;
  --ok: #34d399;
  --bad: #f87171;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: radial-gradient(1000px 500px at 80% -10%, rgba(129,140,248,.12), transparent 60%),
    radial-gradient(800px 420px at 10% -5%, rgba(34,211,238,.10), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 980px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(5,8,12,.72);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--mono); font-weight: 700; font-size: 17px; color: var(--text); display: flex; align-items: center; gap: 9px; }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 14.5px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.lang-btn {
  font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  background: transparent; border: 1px solid var(--line); border-radius: 8px;
  padding: 5px 10px; cursor: pointer; transition: .15s;
}
.lang-btn:hover { color: var(--text); border-color: var(--accent); }

/* Hero */
.hero { padding: 96px 0 56px; text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12.5px; color: var(--accent);
  border: 1px solid rgba(34,211,238,.35); background: rgba(34,211,238,.07);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 28px;
}
.badge .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

h1 { font-size: clamp(38px, 6vw, 62px); font-weight: 800; letter-spacing: -.03em; line-height: 1.08; }
h1 .brand { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; white-space: nowrap; }

.subtitle { max-width: 620px; margin: 22px auto 0; color: var(--muted); font-size: 18px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 640px; margin: 52px auto 0; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px 12px; }
.stat b { display: block; font-size: 26px; letter-spacing: -.02em; font-family: var(--mono); }
.stat span { font-size: 12.5px; color: var(--muted); }

/* Sections */
section { padding: 72px 0; }
.section-title { font-size: 30px; font-weight: 800; letter-spacing: -.02em; text-align: center; }
.section-sub { text-align: center; color: var(--muted); margin-top: 10px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.step {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 26px 22px;
  transition: border-color .15s, transform .15s;
}
.step:hover { border-color: rgba(34,211,238,.45); transform: translateY(-2px); }
.step-num { font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: .14em; }
.step h3 { font-size: 17.5px; margin: 12px 0 8px; letter-spacing: -.01em; }
.step p { color: var(--muted); font-size: 14.5px; }

/* Snippet */
.snippet {
  margin-top: 44px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; text-align: left;
}
.snippet-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 18px; border-bottom: 1px solid var(--line); background: var(--panel-2);
}
.snippet-head span { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.copy-btn {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  background: transparent; border: 1px solid var(--line); border-radius: 7px;
  padding: 5px 12px; cursor: pointer; transition: .15s;
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.snippet pre { padding: 22px; overflow-x: auto; }
.snippet code { font-family: var(--mono); font-size: 13.5px; line-height: 1.7; color: #c9d8ea; }

/* Records */
.records { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 36px; }
.record-chip {
  font-family: var(--mono); font-size: 13px; color: var(--text);
  border: 1px solid var(--line); background: var(--panel);
  padding: 8px 16px; border-radius: 999px;
}
.record-chip em { color: var(--accent); font-style: normal; margin-right: 7px; }

/* Tools grid */
.tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 44px; }
.tool-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 28px 24px;
  text-decoration: none; color: var(--text); transition: border-color .15s, transform .15s;
  display: flex; flex-direction: column; gap: 12px; position: relative;
}
.tool-card:hover { border-color: var(--accent); box-shadow: 0 0 24px rgba(34,211,238,.12); transform: translateY(-2px); text-decoration: none; }
.tool-card h3 { font-size: 20px; font-weight: 700; }
.tool-card p { color: var(--muted); font-size: 15px; line-height: 1.5; }
.tool-icon { font-size: 32px; line-height: 1; }

/* FAQ */
.faq-list { max-width: 720px; margin: 40px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 600; font-size: 15.5px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--mono); color: var(--accent); font-size: 19px; flex-shrink: 0; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 22px 18px; color: var(--muted); font-size: 14.5px; }

/* CTA */
.cta-band {
  margin: 24px 0 72px;
  background: linear-gradient(120deg, rgba(34,211,238,.09), rgba(129,140,248,.09));
  border: 1px solid var(--line); border-radius: 20px;
  padding: 48px 32px; text-align: center;
}
.cta-band h2 { font-size: 26px; letter-spacing: -.02em; }
.cta-band p { color: var(--muted); margin: 10px 0 26px; }
.btn-big {
  display: inline-block; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #04121a; font-weight: 700; font-size: 15.5px; border-radius: 12px; padding: 14px 30px;
  transition: filter .15s; border: none; cursor: pointer;
}
.btn-big:hover { filter: brightness(1.12); text-decoration: none; }
.cta-note { margin: 18px auto 0; font-size: 13px; color: var(--muted); max-width: 520px; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 34px 0; color: var(--muted); font-size: 13.5px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .stat b { font-size: 19px; }
  .hero { padding: 68px 0 40px; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }