:root {
  --accent: #5ac8fa;
  --accent-strong: #2ba7e0;
  --bg: #0f1216;
  --bg-alt: #161b22;
  --surface: #1b2128;
  --surface-2: #20272f;
  --text: #e8edf2;
  --text-dim: #9fb0bf;
  --border: #2a323b;
  --radius: 18px;
  --maxw: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; }
.brand-name { font-weight: 700; font-size: 1.15rem; letter-spacing: 0.2px; }
.site-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-nav a { color: var(--text-dim); font-size: 0.95rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  text-align: center;
  padding: 72px 24px 64px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero-mark { width: 104px; height: 104px; margin-bottom: 20px; filter: drop-shadow(0 8px 30px rgba(90, 200, 250, 0.25)); }
.badge {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.hero h1 { font-size: clamp(2.4rem, 6vw, 3.6rem); margin: 0 0 12px; letter-spacing: -0.5px; }
.tagline { font-size: 1.2rem; color: var(--text-dim); max-width: 620px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #07222e; }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface-2); }

/* Sections */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 24px;
}
.section-alt { background: var(--bg-alt); max-width: none; }
.section-alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section h2 { font-size: clamp(1.6rem, 4vw, 2.1rem); margin: 0 0 16px; }
.lead { font-size: 1.1rem; color: var(--text-dim); max-width: 720px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 32px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; color: var(--accent); }
.card p { margin: 0; color: var(--text-dim); font-size: 0.97rem; }

.steps {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}
.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.step-num {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #07222e;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { margin: 0 0 4px; font-size: 1.05rem; color: var(--accent); }
.step p { margin: 0; color: var(--text-dim); font-size: 0.97rem; }

.note {
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  color: var(--text-dim);
}

/* Legal page */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}
.legal h1 { font-size: 2.2rem; margin: 0 0 6px; }
.legal .updated { color: var(--text-dim); margin: 0 0 28px; font-size: 0.92rem; }
.legal h2 { font-size: 1.35rem; margin: 36px 0 10px; }
.legal h3 { font-size: 1.08rem; margin: 22px 0 8px; color: var(--accent); }
.legal p, .legal li { color: var(--text); }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal code {
  background: var(--surface-2);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.88em;
  word-break: break-all;
  color: var(--accent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.footer-inner nav { display: flex; gap: 18px; }
.footer-inner a { color: var(--text-dim); }
.footer-inner a:hover { color: var(--text); }