:root {
  --bg: #070a12;
  --bg2: #0b1020;
  --panel: rgba(17, 24, 39, 0.72);
  --panel-solid: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: rgba(148, 163, 184, 0.16);
  --shadow: rgba(0, 0, 0, 0.35);
  --accent: #8b5cf6;
  --accent2: #22d3ee;
  --code-bg: rgba(2, 6, 23, 0.55);
  --focus: rgba(139, 92, 246, 0.32);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(1000px 640px at 15% 10%, rgba(139, 92, 246, 0.18), transparent 55%),
    radial-gradient(900px 560px at 85% 0%, rgba(34, 211, 238, 0.14), transparent 55%),
    radial-gradient(1200px 720px at 50% 100%, rgba(139, 92, 246, 0.10), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--panel-solid);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 1000;
}

.skip-link:focus {
  left: 12px;
  outline: none;
  box-shadow: 0 0 0 4px var(--focus);
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(7, 10, 18, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand img {
  width: 28px;
  height: 28px;
}

.brand span {
  font-size: 15px;
  opacity: 0.98;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: flex-end;
  font-size: 14px;
  color: var(--muted);
}

.auth-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.auth-status {
  color: var(--muted);
  font-size: 12px;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.auth-button {
  padding: 8px 12px;
  font-size: 13px;
  white-space: nowrap;
}

.auth-button[hidden] {
  display: none;
}

.nav-links a {
  color: inherit;
  padding: 8px 10px;
  border-radius: 10px;
}

.nav-links a:hover {
  background: rgba(148, 163, 184, 0.08);
  text-decoration: none;
  color: var(--text);
}

.nav-links a:focus-visible,
.button:focus-visible,
details summary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--focus);
}

.hero {
  padding: 64px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 22px;
  align-items: stretch;
}

.hero-card {
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.78), rgba(2, 6, 23, 0.62));
  box-shadow: 0 16px 40px var(--shadow);
  overflow: hidden;
}

.hero-card-inner {
  padding: 30px 28px;
}

.kicker {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.kicker .dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18);
}

h1 {
  margin: 12px 0 10px;
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0;
  color: rgba(229, 231, 235, 0.9);
  font-size: 18px;
  max-width: 56ch;
}

.cta-row {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.08);
  color: var(--text);
}

.button.primary {
  border-color: rgba(139, 92, 246, 0.38);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.95), rgba(34, 211, 238, 0.55));
  color: rgba(2, 6, 23, 0.92);
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
  transition: transform 120ms ease;
}

.hero-side {
  display: grid;
  gap: 14px;
  height: 100%;
}

.mini {
  padding: 18px 18px;
}

.mini h2 {
  margin: 4px 0 10px;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.mini p,
.mini ul {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.mini ul {
  padding-left: 18px;
}

.code {
  margin-top: 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--code-bg);
  overflow: auto;
  padding: 14px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  line-height: 1.45;
}

section {
  padding: 54px 0;
}

.section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.section-title h2 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.card {
  grid-column: span 4;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.52);
  padding: 18px 16px;
  min-height: 160px;
}

.card h3 {
  margin: 10px 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.icon {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.12));
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.icon svg {
  width: 18px;
  height: 18px;
  stroke: rgba(229, 231, 235, 0.9);
}

.steps {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.step {
  grid-column: span 6;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.42);
  padding: 18px 16px;
}

.step strong {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.step span {
  color: var(--muted);
  font-size: 14px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.callout {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(2, 6, 23, 0.46);
  padding: 18px 16px;
}

.callout h3 {
  margin: 0 0 10px;
  font-size: 16px;
}

.callout p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pill {
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(148, 163, 184, 0.06);
  color: rgba(229, 231, 235, 0.92);
}

details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.40);
  padding: 14px 14px;
}

details + details {
  margin-top: 10px;
}

summary {
  cursor: pointer;
  font-weight: 600;
  letter-spacing: -0.01em;
}

details p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

footer {
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.22);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  .nav {
    align-items: flex-start;
  }
  .nav-right {
    flex-direction: column;
    align-items: flex-end;
  }
  .auth-status {
    max-width: 100%;
    text-align: right;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .card {
    grid-column: span 6;
  }
  .step {
    grid-column: span 12;
  }
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: stretch;
  }
  .nav-right {
    align-items: stretch;
  }
  .nav-links {
    justify-content: flex-start;
  }
  .auth-controls {
    flex-wrap: wrap;
    justify-content: flex-start;
  }
  .auth-status {
    order: 3;
    width: 100%;
    text-align: left;
  }
  h1 {
    font-size: 38px;
  }
  .card {
    grid-column: span 12;
    min-height: 0;
  }
}