/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text: #e5e5e5;
  --text-muted: #888888;
  --accent: #00ff88;
  --accent-dim: #00cc6a;
  --border: #2a2a2a;
  --code-bg: #0d0d0d;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

code {
  font-family: var(--font-mono);
}

/* Container */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.logo-bracket {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  opacity: 1;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 24px 80px;
}

.logo-text {
  font-family: var(--font-mono);
  font-size: clamp(48px, 12vw, 120px);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 32px;
  letter-spacing: 0.1em;
}

.hero-title {
  font-size: clamp(24px, 5vw, 48px);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-tagline {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-muted);
  margin-bottom: 48px;
}

.install-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 15px;
}

.install-box code {
  color: var(--accent);
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}

.copy-btn:hover {
  color: var(--text);
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-dark {
  background: var(--bg-secondary);
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto 48px;
}

.section-desc strong {
  color: var(--accent);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.feature:hover {
  border-color: var(--accent-dim);
}

.feature-icon {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  background: var(--bg-tertiary);
  padding: 8px 12px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 16px;
}

.feature h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

/* Code Window */
.code-window {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 700px;
  margin: 0 auto;
}

.code-header {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27ca40; }

.code-filename {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.code-content {
  padding: 20px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}

.code-content code {
  color: var(--text);
}

/* Commands */
.commands {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 600px;
  margin: 0 auto;
}

.command {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
}

.command-code {
  color: var(--accent);
  font-size: 15px;
}

.command-desc {
  color: var(--text-muted);
  font-size: 14px;
}

/* Packages Table */
.packages-table {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.package-row {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.package-row:last-child {
  border-bottom: none;
}

.package-row.header {
  background: var(--bg-tertiary);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-muted);
}

.package-name {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.package-desc {
  color: var(--text-muted);
  font-size: 14px;
}

.package-row code {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg);
  padding: 6px 10px;
  border-radius: 4px;
}

/* Categories */
.categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.category {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 20px;
  transition: all 0.2s;
}

.category:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Architecture */
.architecture {
  font-family: var(--font-mono);
  font-size: clamp(10px, 1.5vw, 14px);
  line-height: 1.4;
  color: var(--text-muted);
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  white-space: pre;
  max-width: 700px;
  margin: 0 auto;
}

/* CTA */
.cta {
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-secondary) 100%);
}

.cta-title {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  margin-bottom: 32px;
}

.cta-commands {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 400px;
  margin: 0 auto 32px;
}

.cta-commands code {
  font-size: 14px;
  color: var(--accent);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: 8px;
}

.cta-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

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

/* Footer */
.footer {
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-links {
  margin-top: 16px;
  display: flex;
  justify-content: center;
  gap: 24px;
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    gap: 20px;
  }

  .package-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .package-row.header {
    display: none;
  }

  .command {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}