:root {
  --bg: #0f1419;
  --surface: #1a222c;
  --surface-2: #243040;
  --text: #e8eef4;
  --muted: #9aabbc;
  --accent: #3db8a8;
  --accent-dim: #2a8f82;
  --border: #2e3d4d;
  --warn: #e6b35a;
  --radius: 12px;
  --max: 720px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: #6ad4c6; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.92);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  font-size: 1.05rem;
}

.brand span { color: var(--accent); }

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
}

.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

main { flex: 1; padding: 2.25rem 0 3rem; }

h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.35rem;
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
}

p { margin: 0 0 1rem; color: var(--muted); }
p.lead { color: var(--text); font-size: 1.08rem; }

ul { color: var(--muted); padding-left: 1.2rem; }
li { margin-bottom: 0.4rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin: 1.25rem 0;
}

.card strong { color: var(--text); }

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(61, 184, 168, 0.12);
  border: 1px solid rgba(61, 184, 168, 0.35);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  margin-bottom: 0.85rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 0.5rem;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.1rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #06221e;
}
.btn-primary:hover { background: #6ad4c6; color: #06221e; }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--muted); color: var(--accent); }

.note {
  border-left: 3px solid var(--warn);
  padding: 0.65rem 0.9rem;
  background: rgba(230, 179, 90, 0.08);
  border-radius: 0 8px 8px 0;
  color: var(--muted);
  margin: 1rem 0;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site .wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

footer.site nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--accent); }

.meta { font-size: 0.85rem; color: var(--muted); }

@media (max-width: 520px) {
  .nav { align-items: flex-start; }
}