:root {
  --canvas: #0b0b0f;
  --surface: #16161c;
  --elevated: #1e1e26;
  --accent: #f5c518;
  --accent-on: #111111;
  --text: #ffffff;
  --muted: #b0b0b8;
  --dim: #7a7a85;
  --outline: #2c2c36;
  --danger: #e5484d;
  --radius: 14px;
  --font: "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  min-height: 100%;
}

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

.wrap {
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--outline);
  background: rgba(11, 11, 15, 0.92);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 10;
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  letter-spacing: 0.02em;
}
.brand span { color: var(--accent); }

.nav { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.nav a { color: var(--muted); font-size: 0.95rem; }
.nav a:hover { color: var(--accent); }

.hero {
  padding: 4.5rem 0 3rem;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(245, 197, 24, 0.18), transparent 55%),
    radial-gradient(ellipse at 90% 20%, rgba(42, 51, 68, 0.55), transparent 50%);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.hero p.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 38rem;
  margin: 0 0 1.75rem;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-on);
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--outline);
}
.btn:disabled, .btn.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.cta-note {
  margin-top: 0.75rem;
  color: var(--dim);
  font-size: 0.9rem;
}

.section { padding: 2.5rem 0; }
.section h2 { margin: 0 0 0.75rem; font-size: 1.4rem; }
.section p { color: var(--muted); margin-top: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
}
.card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.card p { margin: 0; font-size: 0.95rem; }

.doc-page { padding: 2.5rem 0 4rem; }
.doc-page article {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
}
.doc-page h1 { margin-top: 0; }
.doc-meta { color: var(--dim); font-size: 0.9rem; margin-bottom: 1.25rem; }
.doc-body p { color: var(--muted); }
.doc-body p:first-child { margin-top: 0; }

.state-box {
  background: var(--elevated);
  border: 1px dashed var(--outline);
  border-radius: var(--radius);
  padding: 2rem 1.25rem;
  text-align: center;
  color: var(--muted);
}
.state-box.error { border-color: var(--danger); color: #ffb4b4; }

.site-footer {
  border-top: 1px solid var(--outline);
  padding: 1.5rem 0 2.5rem;
  color: var(--dim);
  font-size: 0.9rem;
}
.site-footer .links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  margin-bottom: 0.75rem;
}

@media (max-width: 640px) {
  .site-header .inner { flex-direction: column; align-items: flex-start; }
  .hero { padding-top: 3rem; }
}