:root {
  --bg: #0d1117;
  --bg-soft: #111827;
  --panel: #151b23;
  --panel-2: #1b2430;
  --text: #f0f6fc;
  --muted: #9aa7b2;
  --border: #30363d;
  --accent: #58a6ff;
  --accent-strong: #2f81f7;
  --success: #3fb950;
  --warning: #d29922;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(88, 166, 255, .14), transparent 34rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--text);
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 32px;
  align-items: center;
  padding: 72px 0;
}

.hero.compact {
  grid-template-columns: 1fr;
  padding-bottom: 40px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .85rem;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.4rem, 7vw, 5.3rem);
  line-height: .98;
  margin: 0 0 24px;
}

h2 {
  margin-top: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.1;
}

h3 {
  margin-bottom: 8px;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 14px;
  font-weight: 800;
  border: 1px solid var(--border);
}

.button.primary {
  background: var(--accent-strong);
  color: white;
  border-color: var(--accent-strong);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, .03);
}

.hero-panel,
.card,
.page,
.notice,
.cta-band {
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 26px;
  box-shadow: 0 20px 60px rgba(0,0,0,.18);
}

.panel-label {
  margin-top: 0;
  color: var(--accent);
  font-weight: 800;
}

.mini-steps,
.steps {
  padding-left: 20px;
}

.mini-steps li,
.steps li {
  margin: 10px 0;
  color: var(--muted);
}

.section {
  padding: 46px 0;
}

.section > p {
  max-width: 850px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 26px 0 42px;
}

.card p,
.page p,
.notice p,
.cta-band p,
.feature-list p {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  width: fit-content;
  padding: 5px 10px;
  border: 1px solid rgba(88, 166, 255, .35);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(88, 166, 255, .08);
  font-size: .8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-list > div {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,.025);
}

details {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  margin: 12px 0;
  background: rgba(255,255,255,.025);
}

summary {
  cursor: pointer;
  font-weight: 800;
}

.notice {
  border-color: rgba(210, 153, 34, .45);
  background: rgba(210, 153, 34, .06);
  margin: 28px 0;
}

.cta-band {
  margin-top: 48px;
  background:
    linear-gradient(135deg, rgba(47,129,247,.18), rgba(63,185,80,.08)),
    var(--panel);
}

.page {
  max-width: 880px;
  margin: 32px 0;
}

.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 44px 24px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 26px;
}

.site-footer h2,
.site-footer h3 {
  margin-top: 0;
}

.site-footer p {
  color: var(--muted);
}

.site-footer a {
  display: block;
  margin: 8px 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero,
  .grid,
  .feature-list,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: clamp(2.2rem, 12vw, 4rem);
  }
}