/* ===== Crypto Payment Gateway — shared design tokens & base ===== */
:root {
  --bg: #0a0b10;
  --bg-soft: #0f111a;
  --panel: #14161f;
  --panel-2: #1a1d28;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8eaf2;
  --text-dim: #a0a4b8;
  --text-faint: #6b7088;
  --brand: #6366f1;
  --brand-2: #8b5cf6;
  --accent: #22d3ee;
  --success: #34d399;
  --radius: 16px;
  --maxw: 1120px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

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

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

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 12px;
  font-weight: 600; font-size: 15px; cursor: pointer;
  border: 1px solid transparent; transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; box-shadow: 0 8px 24px -8px rgba(99, 102, 241, .6);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -8px rgba(99, 102, 241, .7); }
.btn-ghost { background: rgba(255, 255, 255, .04); border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); border-color: var(--brand); }

/* ===== Nav ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px); background: rgba(10, 11, 16, .72);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -.2px; }
.brand .gem {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--accent)); color: #fff; font-size: 15px;
  box-shadow: 0 4px 14px -4px rgba(99, 102, 241, .8);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
@media (max-width: 820px) { .nav-links { display: none; } }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 56px 0 40px; margin-top: 80px; background: var(--bg-soft); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); margin-bottom: 14px; }
.footer a { display: block; color: var(--text-dim); font-size: 14px; margin-bottom: 10px; transition: color .2s; }
.footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--text-faint); font-size: 13px; }
.footer-note { max-width: 320px; color: var(--text-faint); font-size: 14px; margin-top: 12px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ===== Legal / doc pages ===== */
.legal { max-width: 820px; margin: 0 auto; padding: 64px 24px 40px; }
.legal h1 { font-size: 38px; letter-spacing: -.5px; margin-bottom: 8px; }
.legal .updated { color: var(--text-faint); font-size: 14px; margin-bottom: 36px; }
.legal h2 { font-size: 21px; margin: 34px 0 12px; letter-spacing: -.2px; }
.legal p, .legal li { color: var(--text-dim); margin-bottom: 12px; }
.legal ul { padding-left: 22px; margin-bottom: 12px; }
.legal a { color: var(--accent); }
.legal a:hover { text-decoration: underline; }
.callout {
  background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--brand);
  border-radius: 10px; padding: 16px 18px; margin: 20px 0; color: var(--text-dim); font-size: 14.5px;
}
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--text-dim); font-size: 14px; margin-bottom: 28px; }
.back-link:hover { color: var(--text); }