:root {
  color-scheme: dark;
  --bg: #09090b;
  --bg-subtle: #18181b;
  --fg: #fafafa;
  --fg-muted: #a1a1aa;
  --border: #27272a;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-foreground: #ffffff;

  --radius: 0.75rem;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Aurora Backdrop */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 50%, rgba(79, 70, 229, 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(147, 51, 234, 0.15), transparent 25%);
  pointer-events: none;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

header {
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(9, 9, 11, 0.8);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--fg);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--fg);
}

/* Hero Section */
.hero {
  padding: 8rem 0 6rem;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #fff, #a1a1aa);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.btn-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--fg);
  color: var(--bg);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background-color: var(--bg-subtle);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: var(--border);
}

/* Showcase - Screenshots */
.showcase {
  margin: 4rem 0;
  perspective: 1000px;
}

.screenshot-main {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 20px 50px -10px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  background: var(--bg-subtle);
}

.screenshot-main img {
  display: block;
  width: 100%;
  height: auto;
}

/* Features Grid */
.features {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--fg-muted);
  font-size: 1.125rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: var(--radius);
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  border-color: var(--fg-muted);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
}

/* Architecture / Tech Stack */
.tech-stack {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4rem;
  align-items: center;
}

.tech-list {
  list-style: none;
}

.tech-list li {
  margin-bottom: 2rem;
}

.tech-list h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.tech-list p {
  color: var(--fg-muted);
}

.secondary-screenshots {
  display: grid;
  gap: 1.5rem;
}

.secondary-screenshots img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  width: 100%;
}

/* Deployment */
.deployment {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(to bottom, transparent, rgba(79, 70, 229, 0.05));
}

.code-block {
  background: #1e1e24;
  padding: 1.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  color: #e2e8f0;
  border: 1px solid var(--border);
  margin-top: 2rem;
  text-align: left;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.command {
  display: block;
  margin-bottom: 0.5rem;
}

.comment {
  color: #6b7280;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  text-align: center;
  color: var(--fg-muted);
  font-size: 0.875rem;
}

/* Mobile */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .tech-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .nav-links {
    display: none;
  }
}