:root {
  --bg: #0b1120;
  --bg-alt: #111827;
  --card: #172033;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border: #243045;
  --max-width: 1200px;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background: linear-gradient(180deg, #08101d 0%, #0b1120 100%);
  color: var(--text);
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

/* Header */

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

nav a {
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

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

/* Hero */

.hero {
  padding: 5rem 0 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.02);
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn-secondary:hover {
  border-color: #3a4a66;
  background: rgba(255, 255, 255, 0.05);
}

.hero-card {
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.1), rgba(23, 32, 51, 0.92));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.hero-card li + li {
  margin-top: 0.55rem;
}

/* Sections */

section {
  padding: 1.25rem 0 3.25rem;
}

.section-header {
  margin-bottom: 1.3rem;
}

.section-header h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.section-header p {
  margin: 0;
  color: var(--muted);
  max-width: 68ch;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: #35507b;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

/* Lists */

.list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.list-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.list-card h3 {
  margin: 0 0 0.9rem;
  font-size: 1.08rem;
}

.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.link-list li + li {
  margin-top: 0.7rem;
}

.link-list a {
  color: var(--text);
}

.link-list a:hover {
  color: #bfdbfe;
}

/* Feature band */

.feature-band {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* CTA panels */

.cta-panel {
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.12), rgba(23, 32, 51, 0.95));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.cta-panel p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 65ch;
}

/* Footer */

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  color: var(--muted);
}

footer strong {
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

.footer-links a:hover {
  color: var(--text);
}

/* Responsive */

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

  .header-inner {
    align-items: flex-start;
    padding: 0.9rem 0;
    flex-direction: column;
  }

  nav {
    gap: 0.85rem;
  }

  .hero {
    padding-top: 3.5rem;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 1.2rem, var(--max-width));
  }

  h1 {
    font-size: 2.2rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}