:root {
  --bg: #0f1115;
  --bg-soft: #111820;
  --surface: #141c25;
  --surface-light: #1b2531;
  --text: #e8edf5;
  --muted: #a7b4c7;
  --accent: #6bdcff;
  --accent-strong: #58b3ff;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 12px 35px rgba(0,0,0,0.25);
  --max-width: 1200px;
  --radius: 12px;
  --radius-lg: 18px;
  --gap: 20px;
  --transition: 180ms ease;
  --font-body: 'Inter', 'SF Pro Display', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(15,17,21,0.85);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a { padding: 8px 10px; border-radius: 8px; color: var(--muted); }
.nav-links a.active, .nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }

.nav-cta { display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: var(--transition);
  background: none;
  color: var(--text);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #031018;
  box-shadow: var(--shadow);
}

.btn.ghost {
  border-color: var(--border);
  color: var(--text);
}

.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

#menu-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; color: var(--text); }

main { padding-bottom: 60px; }

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.section.small { padding: 48px 0; }
.section.hero { padding: 110px 0 90px; }

h1, h2, h3, h4 { margin: 0 0 12px; font-weight: 700; letter-spacing: -0.01em; }

h1 { font-size: clamp(2.4rem, 4vw + 1rem, 3.6rem); line-height: 1.1; }
h2 { font-size: clamp(1.8rem, 3vw + 1rem, 2.5rem); }
h3 { font-size: 1.4rem; }

p { margin: 0 0 12px; color: var(--muted); }

.lead { font-size: 1.1rem; max-width: 760px; }

.grid { display: grid; gap: var(--gap); }

.two-col { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.three-col { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.four-col { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 8px 26px rgba(0,0,0,0.18);
  transition: var(--transition);
}

.card:hover { border-color: rgba(255,255,255,0.16); transform: translateY(-2px); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-weight: 600;
  font-size: 0.85rem;
}

.pill { display: inline-flex; padding: 6px 12px; border-radius: 999px; background: rgba(255,255,255,0.08); color: var(--muted); font-size: 0.9rem; }

.list { padding-left: 18px; color: var(--muted); }
.list li { margin-bottom: 8px; }

.value-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.value-strip .item {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  font-weight: 600;
}

.hero-visual {
  position: relative;
  min-height: 280px;
  background: radial-gradient(circle at 20% 20%, rgba(107,220,255,0.25), transparent 32%),
              radial-gradient(circle at 80% 0%, rgba(88,179,255,0.25), transparent 35%),
              linear-gradient(145deg, #0d141c, #0c1016);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  padding: 22px;
  box-shadow: var(--shadow);
}

.hero-visual .flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.token {
  padding: 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px dashed rgba(255,255,255,0.1);
  color: var(--muted);
  font-size: 0.95rem;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  align-items: start;
}

.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.process .step {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}

.faq-item { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.faq-item button { width: 100%; background: none; border: none; color: var(--text); text-align: left; padding: 16px; font-weight: 600; display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.faq-item .answer { padding: 0 16px 16px; color: var(--muted); display: none; }
.faq-item.open .answer { display: block; }

.table-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }

.footer {
  padding: 40px 0 32px;
  background: #0c1118;
  border-top: 1px solid var(--border);
}

.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.footer small { color: var(--muted); }

.tagline { font-size: 1.1rem; font-weight: 600; color: var(--text); }

.table { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table-row { display: grid; grid-template-columns: 160px 1fr; border-bottom: 1px solid var(--border); }
.table-row:last-child { border-bottom: none; }
.table-row .label { background: rgba(255,255,255,0.04); padding: 12px; font-weight: 600; }
.table-row .content { padding: 12px; color: var(--muted); }

.highlight { color: var(--accent); font-weight: 700; }

hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; background: rgba(15,17,21,0.96); padding: 16px 20px; flex-direction: column; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  #menu-toggle { display: inline-flex; }
  .nav-cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}