:root {
  --bg: #09111a;
  --panel: #122233;
  --panel-2: #15293f;
  --text: #edf3fb;
  --muted: #b2c2d6;
  --accent: #7dd0a8;
  --accent-2: #8fb8ff;
  --border: rgba(255,255,255,0.08);
  --danger: #ff857d;
  --success: #8ee6aa;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #14304c 0%, var(--bg) 55%);
  color: var(--text);
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  background: rgba(9,17,26,0.8);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.inline-form { display: inline; }

.hero, .page-header {
  padding: 48px 0 28px;
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

h1, h2, h3 { margin-top: 0; }

h1 {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  line-height: 1.06;
  margin-bottom: 16px;
}

.lead {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 64ch;
}

.grid {
  display: grid;
  gap: 20px;
  margin: 26px 0 40px;
}
.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.18);
}

.feature-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.auth-shell {
  display: flex;
  justify-content: center;
  padding: 48px 0;
}

.auth-card {
  width: min(520px, 100%);
}

.stack-form,
.auth-card {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

input, select {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 1rem;
}

button, .primary-button, .secondary-button, .ghost-button, .button-link {
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary-button, .button-link {
  background: var(--accent);
  color: #10211a;
}

.secondary-button {
  background: var(--accent-2);
  color: #0b1830;
}

.ghost-button {
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border: 1px solid var(--border);
}

.block { width: 100%; }
.muted { color: var(--muted); }

.alert {
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
}
.alert.error { background: rgba(255,133,125,0.12); color: var(--danger); }
.alert.success { background: rgba(142,230,170,0.12); color: var(--success); }

.explorer-list h2 { margin-bottom: 18px; }
.explorer-card { display: grid; gap: 14px; }
.explorer-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.meta { color: var(--muted); margin: 0; }
.pill {
  background: rgba(125,208,168,0.12);
  color: var(--accent);
  border: 1px solid rgba(125,208,168,0.35);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.code-box {
  border-radius: 14px;
  border: 1px dashed rgba(143,184,255,0.5);
  background: rgba(143,184,255,0.08);
  padding: 16px;
  display: grid;
  gap: 6px;
}

.code-box strong {
  font-size: 1.7rem;
  letter-spacing: 0.12em;
}

@media (max-width: 920px) {
  .hero, .two-up, .three-up { grid-template-columns: 1fr; }
  .nav-wrap { flex-direction: column; gap: 14px; padding: 12px 0; }
}