/* ============================================
   FixTheVuln — Practice Tests Design System
   Hub + Vendor category pages
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;1,9..40,400&family=IBM+Plex+Mono:wght@400;600;700&display=swap');

:root {
  --bg-root: #06090f;
  --bg-surface: #0c1219;
  --bg-card: #111a25;
  --bg-input: #0e1620;
  --border: #1c2a3a;
  --text-primary: #e8edf4;
  --text-secondary: #7a8ba0;
  --text-muted: #4a5568;
  --accent: #667eea;
  --accent-hover: #7c8ff0;
  --accent-glow: rgba(102, 126, 234, 0.15);
  --accent-secondary: #764ba2;
  --gradient-brand: linear-gradient(135deg, #667eea, #764ba2, #06b6d4);
  --gradient-card: linear-gradient(145deg, var(--bg-card), var(--bg-surface));
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

[data-theme="light"] {
  --bg-root: #f5f7fa;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --border: #e2e8f0;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #a0aec0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --gradient-card: linear-gradient(145deg, #ffffff, #f7fafc);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.pt-animate { animation: fadeInUp 0.6s ease-out both; }
.pt-delay-1 { animation-delay: 0.1s; }
.pt-delay-2 { animation-delay: 0.2s; }
.pt-delay-3 { animation-delay: 0.3s; }

/* ============================================
   Page Base (overrides site defaults)
   ============================================ */

.pt-page {
  font-family: var(--font-sans);
  background: var(--bg-root);
  color: var(--text-primary);
}

.pt-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   Breadcrumb
   ============================================ */

.pt-breadcrumb {
  padding: 16px 32px;
  font-size: 13px;
  color: var(--text-muted);
  max-width: 1200px;
  margin: 0 auto;
}

.pt-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.pt-breadcrumb a:hover {
  color: var(--accent);
}

.pt-breadcrumb-sep {
  margin: 0 8px;
  color: var(--text-muted);
}

/* ============================================
   Hero Section
   ============================================ */

.pt-hero {
  text-align: center;
  padding: 60px 32px 40px;
  max-width: 840px;
  margin: 0 auto;
}

.pt-hero-badge {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.pt-hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -1px;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1.1;
}

.pt-hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.pt-hero-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.pt-hero-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ============================================
   Stats Banner
   ============================================ */

.pt-stats-banner {
  display: flex;
  justify-content: center;
  gap: 32px;
  padding: 32px 24px;
  margin: 0 auto 48px;
  max-width: 800px;
}

.pt-stat {
  text-align: center;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 120px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.pt-stat:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.pt-stat-value {
  font-size: 28px;
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pt-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ============================================
   Section Titles
   ============================================ */

.pt-section {
  padding: 0 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.pt-section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pt-section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ============================================
   Filter Tabs (Hub page)
   ============================================ */

.pt-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 0 24px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.pt-filter-tab {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: var(--font-sans);
}

.pt-filter-tab:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.pt-filter-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ============================================
   Vendor Hub Cards
   ============================================ */

.pt-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 16px;
}

.pt-hub-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.pt-hub-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--gradient-brand));
  opacity: 0;
  transition: opacity 0.3s;
}

.pt-hub-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pt-hub-card:hover::before {
  opacity: 1;
}

.pt-hub-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.pt-hub-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pt-hub-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.pt-hub-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.pt-hub-meta strong {
  color: var(--accent);
}

.pt-hub-link {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

/* ============================================
   Quiz Card Grid
   ============================================ */

.pt-quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.pt-quiz-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.pt-quiz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity 0.3s;
}

.pt-quiz-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pt-quiz-card:hover::before {
  opacity: 1;
}

.pt-quiz-vendor {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.pt-quiz-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pt-quiz-tagline {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.pt-quiz-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.pt-quiz-stat {
  background: var(--bg-input);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.pt-quiz-stat strong {
  color: var(--accent);
  font-weight: 700;
}

.pt-quiz-domains {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.pt-quiz-cta {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: all 0.2s;
}

.pt-quiz-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* ============================================
   Store Cross-Link CTA
   ============================================ */

.pt-store-cta {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
  margin: 48px auto;
  max-width: 720px;
  position: relative;
  overflow: hidden;
}

.pt-store-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.pt-store-cta h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pt-store-cta p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.pt-store-cta-btn {
  display: inline-block;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: white;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

.pt-store-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

/* ============================================
   Related Vendors
   ============================================ */

.pt-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.pt-related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  text-align: center;
  transition: all 0.2s;
}

.pt-related-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.pt-related-icon {
  font-size: 28px;
  margin-bottom: 8px;
}

.pt-related-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pt-related-count {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============================================
   FAQ Section
   ============================================ */

.pt-faq-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 24px;
}

.pt-faq-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  text-align: center;
}

.pt-faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.pt-faq-item:hover {
  border-color: var(--accent);
}

.pt-faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pt-faq-item summary::-webkit-details-marker {
  display: none;
}

.pt-faq-item summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.pt-faq-item[open] summary::after {
  content: '-';
}

.pt-faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Trust Section
   ============================================ */

.pt-trust-section {
  padding: 48px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.pt-trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pt-trust-item {
  text-align: center;
  padding: 24px 16px;
}

.pt-trust-icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.pt-trust-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pt-trust-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================
   Timestamp
   ============================================ */

.pt-timestamp {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  padding: 12px 0;
}

/* ============================================
   Responsive — Tablet (768px)
   ============================================ */

@media (max-width: 768px) {
  .pt-hero {
    padding: 40px 20px 24px;
  }

  .pt-hero h1 {
    font-size: 28px;
  }

  .pt-hero-sub {
    font-size: 15px;
  }

  .pt-stats-banner {
    gap: 16px;
    padding: 24px 16px;
  }

  .pt-stat {
    padding: 12px 16px;
    min-width: 90px;
  }

  .pt-stat-value {
    font-size: 22px;
  }

  .pt-hub-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pt-quiz-grid {
    grid-template-columns: 1fr;
  }

  .pt-filter-bar {
    padding: 0 16px;
  }

  .pt-section {
    padding: 0 16px 32px;
  }

  .pt-trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pt-store-cta {
    padding: 28px 20px;
    margin: 32px 16px;
  }

  .pt-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Responsive — Mobile (480px)
   ============================================ */

@media (max-width: 480px) {
  .pt-hero h1 {
    font-size: 24px;
  }

  .pt-stats-banner {
    flex-wrap: wrap;
    gap: 12px;
  }

  .pt-stat {
    min-width: 80px;
    padding: 10px 12px;
  }

  .pt-stat-value {
    font-size: 20px;
  }

  .pt-hub-grid {
    grid-template-columns: 1fr;
  }

  .pt-filter-bar {
    gap: 6px;
  }

  .pt-filter-tab {
    padding: 6px 14px;
    font-size: 12px;
  }

  .pt-hero-chips {
    gap: 6px;
  }

  .pt-hero-chip {
    font-size: 12px;
    padding: 6px 12px;
  }

  .pt-quiz-card {
    padding: 20px 18px;
  }

  .pt-trust-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}

/* ============================================
   Responsive — Small Mobile (360px)
   ============================================ */

@media (max-width: 360px) {
  .pt-hero h1 {
    font-size: 22px;
  }

  .pt-stats-banner {
    gap: 8px;
  }

  .pt-stat {
    min-width: 70px;
    padding: 8px 10px;
  }

  .pt-stat-value {
    font-size: 18px;
  }

  .pt-stat-label {
    font-size: 10px;
  }
}