:root {
  --bg-color: #0b0f19;
  --card-bg: rgba(22, 27, 46, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --primary: #f43f5e;
  --primary-hover: #e11d48;
  --accent: #38bdf8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

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

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  padding: 5rem 0 3rem;
  text-align: center;
  background: radial-gradient(circle at 50% 20%, rgba(244, 63, 94, 0.15) 0%, transparent 60%);
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: 9999px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

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

.btn.primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn.small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  background: var(--primary);
  color: #fff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
}

.metric-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.metric-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.card h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.control-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.control-group input, .control-group select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  font-family: inherit;
}

.command-box {
  margin-top: 1.5rem;
  position: relative;
  background: #060911;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.command-box pre {
  margin: 0;
  overflow-x: auto;
}

.command-box code {
  font-family: var(--font-mono);
  color: #fb7185;
  font-size: 0.95rem;
}

pre {
  background: #060911;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
}

code {
  font-family: var(--font-mono);
  color: #e2e8f0;
}

.diagram-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.diagram-box {
  background: rgba(11, 15, 25, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
}

.diagram-box.highlight {
  border-color: rgba(244, 63, 94, 0.4);
  background: rgba(244, 63, 94, 0.05);
}

.diagram-box h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

footer a {
  color: var(--primary);
  text-decoration: none;
}