/* SchemaLens — Global Styles */

:root {
  --bg: #0b0b0f;
  --surface: #141419;
  --surface-hover: #1c1c24;
  --border: #27272f;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --secondary: #22d3ee;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1120px;
  --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'SF Mono', Monaco, Inconsolata, 'Fira Code', monospace;
}

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

html { scroll-behavior: smooth; }

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

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

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

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--primary-glow);
}

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

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: #3f3f4a;
}

.btn-lg { padding: 14px 32px; font-size: 1.1rem; }

/* Hero */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--primary-glow), transparent 60%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 36px;
}

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

.hero-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: #64748b;
}

/* Demo preview card */
.demo-card {
  margin-top: 64px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.demo-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.demo-header {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.demo-dot { width: 12px; height: 12px; border-radius: 50%; }
.demo-dot.red { background: var(--danger); }
.demo-dot.yellow { background: var(--warning); }
.demo-dot.green { background: var(--success); }

.demo-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.demo-pane {
  background: #0e0e12;
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.5;
  color: #cbd5e1;
  overflow-x: auto;
}

.demo-pane .comment { color: #64748b; }
.demo-pane .keyword { color: var(--secondary); }
.demo-pane .string { color: var(--success); }
.demo-pane .removed { background: rgba(248, 113, 113, 0.15); color: var(--danger); }
.demo-pane .added { background: rgba(52, 211, 153, 0.15); color: var(--success); }

.demo-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.5rem;
}

@media (max-width: 768px) {
  .demo-body { grid-template-columns: 1fr; }
  .demo-arrow { transform: rotate(90deg); }
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.section-subtitle {
  color: var(--text-muted);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
  font-size: 1.1rem;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: #3f3f4a;
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* How it works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 60px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

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

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 40px var(--primary-glow);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
}

.pricing-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 16px 0;
}

.pricing-card .price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-card ul {
  list-style: none;
  margin: 24px 0;
}

.pricing-card li {
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-card li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

.pricing-card li.disabled {
  opacity: 0.4;
}

.pricing-card li.disabled::before {
  content: '—';
  color: var(--text-muted);
}

/* Blog */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: #3f3f4a;
}

.blog-content {
  padding: 24px;
}

.blog-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.blog-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.35;
}

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

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 100px 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--primary-glow), transparent 60%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 520px;
  margin: 0 auto 32px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 12px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: #cbd5e1;
  font-size: 0.95rem;
  padding: 6px 0;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* About page */
.about-hero {
  padding: 80px 0 60px;
  text-align: center;
}

.about-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.about-hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto;
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
}

.about-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 48px 0 16px;
}

.about-content p {
  color: #cbd5e1;
  margin-bottom: 16px;
  line-height: 1.7;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.value-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.value-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.value-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 12px;
  }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 320px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}

/* Utilities */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }