/* bkt website styles - matches the application's dark theme */

:root {
  --bg: #0a0a0a;
  --surface: #1a1a1a;
  --surface-hover: #252525;
  --border: #333333;
  --text: #e5e5e5;
  --text-secondary: #a3a3a3;
  --blue: #3b82f6;
  --blue-hover: #2563eb;
  --green: #22c55e;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--blue);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

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

.hero-content {
  max-width: 720px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--blue);
  color: white;
}

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

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

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: #444;
}

/* Features Section */
.features-overview {
  padding: 100px 0;
  background: var(--surface);
}

.features-overview h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: #444;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--blue);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Technical Section */
.technical {
  padding: 100px 0;
}

.technical h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.tech-item {
  text-align: center;
}

.tech-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--blue);
}

.tech-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Use Cases Section */
.use-cases {
  padding: 100px 0;
  background: var(--surface);
}

.use-cases-content {
  max-width: 700px;
  margin: 0 auto;
}

.use-cases h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.use-cases > .container > .use-cases-content > p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.use-case-list {
  list-style: none;
}

.use-case-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.use-case-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--blue);
  border-radius: 50%;
}

/* Section intro text */
.section-intro {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-intro code {
  background: rgba(59, 130, 246, 0.15);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--green);
}

/* Getting Started Section */
.getting-started {
  padding: 100px 0;
}

.getting-started h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.steps {
  max-width: 600px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-content pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
}

.step-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--green);
}

.step-note {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

.getting-started-note {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 40px;
}

.getting-started-note a {
  color: var(--blue);
  text-decoration: none;
}

.getting-started-note a:hover {
  text-decoration: underline;
}

.getting-started-note code {
  background: var(--surface);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--green);
}

/* Advanced Configuration Section */
.advanced-config {
  padding: 100px 0;
  background: var(--surface);
}

.advanced-config h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.config-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.2s;
}

.config-card:hover {
  border-color: #444;
}

.config-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--blue);
}

.config-card > p,
.config-card-body > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.config-card pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}

.config-card code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--green);
  line-height: 1.7;
}

/* CTA Section */
.cta {
  padding: 100px 0;
  background: var(--bg);
  text-align: center;
}

.cta h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta > .container > p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

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

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-weight: 600;
}

.footer-logo {
  width: 24px;
  height: 24px;
  color: var(--blue);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
}

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

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

  .hero {
    padding: 100px 24px 60px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .features-overview,
  .technical,
  .use-cases,
  .getting-started,
  .advanced-config,
  .cta {
    padding: 60px 0;
  }

  .feature-grid,
  .config-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    gap: 16px;
  }

  .footer-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 16px;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-links a {
    font-size: 0.85rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}