/**
 * Oracle Siebel IP 21.7 Training Material
 * Shared Stylesheet for all training pages
 * Created: October 2025
 */

:root {
  /* Color Palette */
  --primary-blue: #0b66c3;
  --primary-blue-light: #4a9eff;
  --primary-blue-dark: #074a8f;
  --secondary-orange: #f28b20;
  --secondary-teal: #0d9488;
  --accent-purple: #8b5cf6;
  
  /* Neutrals */
  --text-primary: #132033;
  --text-secondary: #5a6772;
  --text-muted: #8b95a1;
  
  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafb;
  --bg-card: #f6fbff;
  --bg-highlight: #eef6ff;
  
  /* Borders */
  --border-light: #e6eef8;
  --border-medium: #d7e0ee;
  
  /* Status Colors */
  --success: #179943;
  --warning: #f59e0b;
  --error: #dc2626;
  --info: #3b82f6;
  
  /* Typography */
  --font-primary: "Segoe UI", "Inter", Roboto, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  --font-mono: "Consolas", "Monaco", "Courier New", monospace;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 18px;
  --spacing-xl: 24px;
  --spacing-2xl: 36px;
  
  /* Shadows */
  --shadow-sm: 0 2px 6px rgba(10, 20, 40, 0.04);
  --shadow-md: 0 6px 18px rgba(10, 20, 40, 0.06);
  --shadow-lg: 0 12px 32px rgba(10, 20, 40, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  margin: 0;
  padding: 0;
  background: linear-gradient(180deg, #f3f7fb, #ffffff);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container and Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Header Styles */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--spacing-lg);
}

.header-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
  margin: 0;
}

.header-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

/* Banner Styles */
.banner {
  background: var(--bg-highlight);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 6px solid var(--primary-blue);
  margin: var(--spacing-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.banner-success {
  border-left-color: var(--success);
  background: #f0fdf4;
}

.banner-warning {
  border-left-color: var(--warning);
  background: #fef3c7;
}

.banner-info {
  border-left-color: var(--info);
  background: var(--bg-highlight);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-top: 0;
  color: var(--text-primary);
}

h1 {
  font-size: 32px;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 24px;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: 18px;
  margin-bottom: var(--spacing-sm);
}

p {
  margin: 0 0 var(--spacing-md);
  color: var(--text-secondary);
}

.lead {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

/* Card Styles */
.card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: 8px;
  border: 1px solid var(--border-light);
  margin: var(--spacing-md) 0;
  box-shadow: var(--shadow-sm);
}

.card-white {
  background: var(--bg-primary);
}

.card-highlight {
  background: var(--bg-highlight);
  border-left: 4px solid var(--primary-blue);
}

.card-header {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

/* Image Styles */
.image-container {
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.image-container img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.image-caption {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

/* Code and Pre Styles */
code {
  background: #f4f6f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--primary-blue-dark);
}

pre {
  background: #f4f6f9;
  padding: var(--spacing-md);
  border-radius: 6px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid var(--border-medium);
}

pre code {
  background: none;
  padding: 0;
}

/* Lists */
ul, ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
  color: var(--text-secondary);
}

li {
  margin-bottom: var(--spacing-sm);
}

ul.checklist {
  list-style: none;
  padding-left: 0;
}

ul.checklist li::before {
  content: "✓ ";
  color: var(--success);
  font-weight: bold;
  margin-right: var(--spacing-sm);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
  line-height: 1.4;
}

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

.btn-primary:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
  background: var(--bg-highlight);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}

.btn-ghost:hover {
  color: var(--primary-blue);
  background: var(--bg-secondary);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Footer Navigation */
.footer-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 90px;
  background: white;
  border-top: 2px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  box-shadow: 0 -4px 12px rgba(10, 20, 40, 0.04);
  z-index: 100;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-page-number {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-time {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-nav-buttons {
  display: flex;
  gap: var(--spacing-md);
}

/* Page Content Spacing (for footer) */
.content {
  padding-bottom: 120px;
  min-height: 70vh;
}

/* Meta Information */
.meta {
  font-size: 13px;
  color: var(--text-muted);
}

.meta-time {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--text-muted);
}

.meta-time::before {
  content: "⏱";
}

/* Progress Bar */
.progress-bar {
  height: 16px;
  background: #e9eef6;
  border-radius: 10px;
  overflow: hidden;
  margin: var(--spacing-sm) 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-blue-light));
  transition: width 0.6s ease;
  border-radius: 10px;
}

/* Trainee Badge */
.trainee-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: var(--shadow-sm);
}

/* Assignment Styles */
.assignment-header {
  background: linear-gradient(135deg, var(--secondary-teal), #14b8a6);
  color: white;
  padding: var(--spacing-lg);
  border-radius: 8px;
  margin-bottom: var(--spacing-lg);
}

.assignment-steps {
  counter-reset: step-counter;
  list-style: none;
  padding-left: 0;
}

.assignment-steps li {
  counter-increment: step-counter;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  background: var(--bg-card);
  border-left: 4px solid var(--secondary-teal);
  border-radius: 6px;
  position: relative;
  padding-left: 50px;
}

.assignment-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: var(--spacing-md);
  top: var(--spacing-md);
  background: var(--secondary-teal);
  color: white;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

/* Day Divider */
.day-divider {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-blue-dark);
  padding: var(--spacing-2xl);
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border-top: 3px solid var(--primary-blue);
  border-bottom: 3px solid var(--primary-blue);
  margin: var(--spacing-2xl) 0;
}

/* Topic Grid */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container, .container-narrow {
    padding: var(--spacing-md);
  }
  
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
  
  .banner {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .footer-nav {
    height: auto;
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .footer-nav-buttons {
    width: 100%;
    justify-content: space-between;
  }
  
  .content {
    padding-bottom: 180px;
  }
  
  .topic-grid {
    grid-template-columns: 1fr;
  }
}

/* Print Styles */
@media print {
  .footer-nav,
  .header-actions,
  .btn {
    display: none !important;
  }
  
  .content {
    padding-bottom: 0;
  }
  
  body {
    background: white;
  }
}

/* Hierarchical Topic Styles */
.topic-main-title {
  font-size: 32px;
  color: var(--primary-blue-dark);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 3px solid var(--primary-blue);
}

.subtopic-title {
  font-size: 24px;
  color: var(--primary-blue);
  font-weight: 600;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
  border-left: 4px solid var(--secondary-teal);
}

.sub3-topic-title {
  font-size: 20px;
  color: var(--text-primary);
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-sm);
  border-left: 3px solid var(--accent-orange);
}

/* Breadcrumb Navigation */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-sm) 0;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--primary-blue-dark);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--text-muted);
  user-select: none;
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* Topic Navigation Cards */
.subtopic-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.subtopic-nav-card {
  background: var(--bg-card);
  border: 2px solid var(--border-light);
  border-radius: 8px;
  padding: var(--spacing-md);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.subtopic-nav-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.subtopic-nav-card .nav-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-blue);
  margin: 0;
}

.subtopic-nav-card .nav-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.subtopic-nav-card .nav-card-icon {
  font-size: 20px;
  color: var(--secondary-teal);
}

/* Prev/Next Navigation */
.page-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: var(--spacing-2xl) 0 var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--border-light);
  gap: var(--spacing-md);
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 20px;
  background: white;
  border: 2px solid var(--primary-blue);
  border-radius: 8px;
  color: var(--primary-blue);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  min-width: 140px;
}

.nav-btn:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateX(0) scale(1.02);
  box-shadow: var(--shadow-md);
}

.nav-btn-prev:hover {
  transform: translateX(-3px) scale(1.02);
}

.nav-btn-next:hover {
  transform: translateX(3px) scale(1.02);
}

.nav-btn .arrow {
  font-size: 18px;
  font-weight: 700;
}

.nav-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
  border-color: var(--border-light);
  color: var(--text-muted);
}

.nav-center {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* Section Divider */
.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-light), transparent);
  margin: var(--spacing-2xl) 0;
}

/* Topic Progress Indicator */
.topic-progress {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-highlight);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.topic-progress-bar {
  flex: 1;
  height: 8px;
  background: #e9eef6;
  border-radius: 6px;
  overflow: hidden;
}

.topic-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary-teal), #14b8a6);
  transition: width 0.4s ease;
  border-radius: 6px;
}

/* Content Section Wrapper */
.content-section {
  margin-bottom: var(--spacing-2xl);
}

.content-section:last-child {
  margin-bottom: 0;
}

/* Image with Caption Enhancement */
.image-figure {
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.image-figure img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.image-figure figcaption {
  margin-top: var(--spacing-sm);
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mt-0 { margin-top: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.hidden { display: none; }