:root {
  --bg: #07111f;
  --bg-soft: #0f172a;
  --panel: rgba(255, 255, 255, 0.05);
  --text: #eaf2ff;
  --muted: #8fa4c2;
  --accent: #5eead4;
  --accent-2: #8b5cf6;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 45px rgba(2, 8, 23, 0.25);
}

body[data-theme='light'] {
  --bg: #f5f7ff;
  --bg-soft: #eef3ff;
  --panel: rgba(255, 255, 255, 0.85);
  --text: #081120;
  --muted: #475569;
  --accent: #0f766e;
  --accent-2: #6d28d9;
  --border: rgba(15, 23, 42, 0.1);
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg), var(--bg-soft) 60%, #111827);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
}

img {
  max-width: 100%;
}

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  padding: 1rem 0 4rem;
  background: radial-gradient(circle at top right, rgba(94, 234, 212, 0.22), transparent 28%);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a,
.theme-toggle {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover,
.theme-toggle:hover {
  color: var(--text);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 0.6rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  padding-top: 3rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 2.3vw, 2.2rem);
}

.hero-text {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), #22d3ee);
  color: #031018;
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.hero-card,
.card,
.panel,
.doc-item,
.page-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.5rem;
}

.hero-card ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.03);
}

.section-heading {
  margin-bottom: 1.5rem;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.panel {
  padding: 1.25rem;
}

.panel p,
.card p,
.page-card p,
.page-card li {
  color: var(--muted);
  margin: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  padding: 1.25rem;
}

.doc-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.doc-item {
  display: block;
  padding: 1rem 1.1rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.doc-item:hover,
.page-card:hover {
  border-color: var(--accent);
  background: rgba(94, 234, 212, 0.12);
  transform: translateY(-4px);
}

.page-header {
  padding: 1rem 0 2rem;
}

.page-hero {
  padding: 2rem 0 1rem;
}

.page-content {
  padding-bottom: 3rem;
}

.page-card {
  padding: 1.2rem;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.page-card ul {
  padding-left: 1rem;
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.footer {
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

@media (max-width: 800px) {
  .hero-grid,
  .split-grid,
  .doc-list {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-wrap: wrap;
  }

  .footer-content {
    flex-direction: column;
  }
}