:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f5f7fb;
  --text: #0f172a;
  --muted: #5b6475;
  --border: #e3e8f0;
  --accent: #0b6cff;
  --accent-hover: #0057d9;
  --warn: #ef4444;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #131c2e;
    --text: #e8edf6;
    --muted: #9aa5b8;
    --border: #233049;
    --accent: #4d94ff;
    --accent-hover: #7aaeff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}
.brand img { width: 32px; height: 32px; }
.site-header nav a {
  margin-left: 20px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}
.site-header nav a:hover { color: var(--text); }

/* Hero */
.hero {
  padding: 56px 0 40px;
  text-align: center;
}
.hero img {
  width: 180px;
  height: auto;
  filter: drop-shadow(0 18px 30px rgba(11, 108, 255, 0.25));
}
.hero h1 {
  margin: 28px 0 8px;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.hero .tagline {
  margin: 0 auto;
  max-width: 560px;
  color: var(--muted);
  font-size: 19px;
}
.cta {
  display: inline-block;
  margin-top: 28px;
  padding: 12px 22px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}
.cta:hover { background: var(--accent-hover); color: #fff; }
.cta-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

/* Sections */
section { padding: 36px 0; }
section h2 {
  margin: 0 0 18px;
  font-size: 26px;
  letter-spacing: -0.01em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}
.card h3 {
  margin: 0 0 6px;
  font-size: 17px;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}
.step {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.callout {
  padding: 20px 22px;
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--surface);
}
.callout p { margin: 0; }

ul.plain { padding-left: 20px; }
ul.plain li { margin-bottom: 6px; }

/* Long-form pages (privacy policy) */
.doc { padding: 24px 0 48px; }
.doc h1 { font-size: 36px; margin: 16px 0 4px; letter-spacing: -0.02em; }
.doc h2 { font-size: 21px; margin: 32px 0 8px; }
.doc .meta { color: var(--muted); }

/* Footer */
.site-footer {
  margin-top: 32px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}
.site-footer a { color: var(--muted); }

@media (max-width: 560px) {
  .site-header { flex-wrap: wrap; gap: 8px; }
  .site-header nav a { margin: 0 16px 0 0; }
  .hero { padding-top: 32px; }
}

.cta-soon,
.cta-soon:hover {
  background: var(--surface);
  color: var(--muted);
  border: 1px solid var(--border);
  cursor: default;
}