/* --- TUTORIAL STYLES FOR CLOUDFLARE TUNNEL RECOVERY --- */

/* --- 1. TUTORIAL-SPECIFIC VARIABLES --- */
:root {
  /* Tutorial-specific colors */
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-danger: #dc3545;
  --color-info: #17a2b8;

  /* Code block colors */
  --color-code-bg: #f8f9fa;
  --color-code-border: #e9ecef;
  --color-syntax-comment: #6c757d;
  --color-syntax-keyword: #d73a49;
  --color-syntax-string: #032f62;

  /* Tutorial spacing */
  --tutorial-section-gap: 60px;
  --code-block-padding: 20px;

  /* Enhanced shadows */
  --shadow-tutorial-card: 0 4px 20px rgba(91, 155, 213, 0.1);
  --shadow-code-block: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* --- 2. TUTORIAL HERO SECTION --- */
.tutorial-hero {
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-primary-light) 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.tutorial-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%235b9bd5' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 0;
}

.tutorial-hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.tutorial-hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-bottom: 30px;
  line-height: 1.5;
}

.tutorial-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.tutorial-meta span {
  background: var(--color-background);
  padding: 8px 16px;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-code-block);
}

/* --- 3. TUNNEL DIAGRAM SVG STYLES --- */
.tunnel-diagram {
  width: 100%;
  max-width: 400px;
  height: auto;
  filter: drop-shadow(0 4px 10px rgba(91, 155, 213, 0.2));
}

.cloud-group {
  animation: float 6s ease-in-out infinite;
}

.server-group {
  animation: pulse 4s ease-in-out infinite;
}

.warning-icon {
  animation: warning-blink 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes warning-blink {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 0.3; }
}

/* --- 4. MAIN TUTORIAL CONTENT --- */
.tutorial-content {
  padding: 80px 0;
  background: var(--color-background);
}

.tutorial-content .container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  max-width: 1400px;
}

/* --- 5. TABLE OF CONTENTS --- */
.table-of-contents {
  position: sticky;
  top: 120px;
  height: fit-content;
  background: var(--color-card-bg);
  padding: 30px;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-tutorial-card);
  border: 1px solid var(--color-border);
}

.table-of-contents h3 {
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  font-size: 1.2rem;
  font-weight: 600;
}

.table-of-contents ul {
  list-style: none;
}

.table-of-contents li {
  margin-bottom: 8px;
}

.table-of-contents a {
  color: var(--color-text);
  text-decoration: none;
  padding: 8px 12px;
  display: block;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.table-of-contents a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateX(5px);
}

/* --- 6. TUTORIAL ARTICLE --- */
.tutorial-article {
  max-width: none;
}

.tutorial-section {
  margin-bottom: var(--tutorial-section-gap);
  scroll-margin-top: 120px;
}

.tutorial-section h2 {
  color: var(--color-primary-dark);
  font-size: 2rem;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 3px solid var(--color-primary-light);
  font-weight: 600;
}

.tutorial-section h3 {
  color: var(--color-primary-dark);
  font-size: 1.4rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.tutorial-section h4 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 15px;
  font-weight: 600;
}

/* --- 7. PROBLEM CARD --- */
.problem-card {
  display: flex;
  gap: 20px;
  background: linear-gradient(135deg, #fff5f5 0%, #ffe6e6 100%);
  padding: 30px;
  border-radius: var(--card-radius);
  border-left: 5px solid var(--color-danger);
  margin-bottom: 30px;
  box-shadow: var(--shadow-tutorial-card);
}

.problem-icon {
  flex-shrink: 0;
}

.problem-icon svg {
  width: 40px;
  height: 40px;
}

.problem-content h3 {
  color: var(--color-danger);
  margin-bottom: 15px;
}

.problem-symptoms {
  margin-top: 15px;
}

.problem-symptoms li {
  margin-bottom: 8px;
  color: var(--color-text-light);
}

/* --- 8. PREREQUISITES GRID --- */
.prerequisites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.prereq-card {
  background: var(--color-card-bg);
  padding: 25px;
  border-radius: var(--card-radius);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.prereq-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.prereq-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-tutorial-card);
}

.prereq-icon {
  margin-bottom: 15px;
}

.prereq-icon svg {
  width: 30px;
  height: 30px;
}

.prereq-card h4 {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

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

/* --- 9. CODE BLOCKS --- */
.code-block {
  background: var(--color-code-bg);
  border: 1px solid var(--color-code-border);
  border-radius: var(--border-radius);
  margin: 25px 0;
  overflow: hidden;
  box-shadow: var(--shadow-code-block);
  position: relative;
}

.code-header {
  background: var(--color-primary);
  color: white;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 500;
}

.code-lang {
  font-family: 'Fira Code', monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.file-name {
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.3s ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.copy-btn.copied {
  background: var(--color-success);
}

.code-block pre {
  margin: 0;
  padding: var(--code-block-padding);
  overflow-x: auto;
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.code-block code {
  color: var(--color-text);
  background: none;
  padding: 0;
  font-family: inherit;
}

.code-block.output {
  background: #2d3748;
}

.code-block.output .code-header {
  background: #1a202c;
}

.code-block.output code {
  color: #e2e8f0;
}

.code-block.mini {
  margin: 10px 0;
  font-size: 0.8rem;
}

.code-block.mini .code-header {
  padding: 8px 15px;
}

.code-block.mini pre {
  padding: 15px;
}

/* --- 10. STEP CONTENT --- */
.step-content {
  margin-top: 20px;
}

.step-explanation {
  background: var(--color-accent-soft);
  padding: 20px;
  border-radius: var(--border-radius);
  margin: 20px 0;
  border-left: 4px solid var(--color-primary);
}

.step-explanation h4 {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

.step-explanation ul {
  color: var(--color-text-light);
}

.step-visual {
  margin: 25px 0;
  text-align: center;
}

.step-visual svg {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 2px 8px rgba(91, 155, 213, 0.15));
}

/* --- 11. NOTES AND ALERTS --- */
.important-note, .success-note, .warning-note {
  padding: 15px 20px;
  border-radius: var(--border-radius);
  margin: 20px 0;
  border-left: 4px solid;
  font-size: 0.95rem;
}

.important-note {
  background: #fff3cd;
  border-color: var(--color-warning);
  color: #856404;
}

.success-note {
  background: #d4edda;
  border-color: var(--color-success);
  color: #155724;
}

.warning-note {
  background: #f8d7da;
  border-color: var(--color-danger);
  color: #721c24;
}

/* --- 12. CREDENTIAL MAPPING --- */
.credential-mapping {
  background: var(--color-card-bg);
  padding: 25px;
  border-radius: var(--border-radius);
  margin: 20px 0;
  border: 1px solid var(--color-border);
}

.mapping-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 15px;
  margin-top: 15px;
}

.mapping-item {
  background: var(--color-background);
  padding: 15px;
  border-radius: var(--border-radius);
  text-align: center;
  border: 1px solid var(--color-border);
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
}

/* --- 13. FILE STRUCTURE --- */
.file-structure {
  background: var(--color-accent-soft);
  padding: 20px;
  border-radius: var(--border-radius);
  margin: 20px 0;
  border-left: 4px solid var(--color-info);
}

.file-structure h4 {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

.file-structure code {
  background: var(--color-background);
  padding: 8px 12px;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border);
}

/* --- 14. PROS AND CONS --- */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
  margin: 25px 0;
}

.pros, .cons {
  padding: 20px;
  border-radius: var(--border-radius);
  border: 1px solid;
}

.pros {
  background: #f0f9ff;
  border-color: var(--color-success);
}

.cons {
  background: #fef2f2;
  border-color: var(--color-danger);
}

.pros h4 {
  color: var(--color-success);
  margin-bottom: 15px;
}

.cons h4 {
  color: var(--color-danger);
  margin-bottom: 15px;
}

/* --- 15. TROUBLESHOOTING GRID --- */
.troubleshooting-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.issue-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 25px;
  transition: all 0.3s ease;
}

.issue-card:hover {
  box-shadow: var(--shadow-tutorial-card);
  transform: translateY(-2px);
}

.issue-card h4 {
  color: var(--color-danger);
  margin-bottom: 15px;
  font-size: 1.1rem;
}

.issue-card p {
  color: var(--color-text-light);
  margin-bottom: 15px;
  font-size: 0.95rem;
}

.solution {
  margin-top: 15px;
}

.solution strong {
  color: var(--color-success);
  display: block;
  margin-bottom: 10px;
}

/* --- 16. KEY POINTS --- */
.key-points {
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-primary-light) 100%);
  padding: 50px;
  border-radius: var(--card-radius);
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

.key-points::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%235b9bd5' fill-opacity='0.03'%3E%3Cpath d='M20 20L0 0h40L20 20z'/%3E%3C/g%3E%3C/svg%3E");
  z-index: 0;
}

.key-points > * {
  position: relative;
  z-index: 1;
}

.key-points h2 {
  text-align: center;
  color: var(--color-primary-dark);
  margin-bottom: 40px;
  font-size: 2.2rem;
}

.points-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.point-card {
  background: var(--color-background);
  padding: 25px;
  border-radius: var(--card-radius);
  text-align: center;
  box-shadow: var(--shadow-tutorial-card);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.point-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(91, 155, 213, 0.15);
}

.point-icon {
  font-size: 2rem;
  margin-bottom: 15px;
  display: block;
}

.point-card h4 {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.point-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* --- 17. FOOTER --- */
.site-footer {
  background: var(--color-primary-dark);
  color: white;
  text-align: center;
  padding: 30px 0;
  margin-top: 80px;
}

/* --- 18. RESPONSIVE DESIGN --- */
@media (max-width: 768px) {
  .tutorial-hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .tutorial-content .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .table-of-contents {
    position: static;
    order: 2;
  }

  .tutorial-article {
    order: 1;
  }

  .prerequisites-grid {
    grid-template-columns: 1fr;
  }

  .pros-cons {
    grid-template-columns: 1fr;
  }

  .troubleshooting-grid {
    grid-template-columns: 1fr;
  }

  .points-grid {
    grid-template-columns: 1fr;
  }

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

  .key-points {
    padding: 30px 20px;
    margin: 40px -20px 0;
    border-radius: 0;
  }
}

@media (max-width: 480px) {
  .tutorial-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .code-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .copy-btn {
    align-self: flex-end;
  }
}

/* --- 19. PRINT STYLES --- */
@media print {
  .site-header,
  .table-of-contents,
  .copy-btn,
  .site-footer {
    display: none;
  }

  .tutorial-content .container {
    grid-template-columns: 1fr;
  }

  .tutorial-section {
    break-inside: avoid;
    margin-bottom: 40px;
  }

  .code-block {
    break-inside: avoid;
  }
}

/* --- 20. ACCESSIBILITY IMPROVEMENTS --- */
.code-block:focus-within {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.copy-btn:focus {
  outline: 2px solid white;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .cloud-group,
  .server-group,
  .warning-icon {
    animation: none;
  }

  .prereq-card:hover,
  .point-card:hover,
  .issue-card:hover {
    transform: none;
  }
}

/* --- 21. SUPABASE TUTORIAL SPECIFIC STYLES --- */

/* Tutorial Header for Supabase */
.tutorial-header {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent-soft) 100%);
  padding: 60px 0;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-breadcrumb {
  margin-bottom: 20px;
}

.tutorial-breadcrumb a {
  color: var(--color-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  transition: color 0.3s ease;
}

.tutorial-breadcrumb a:hover {
  color: var(--color-primary-dark);
}

.tutorial-header h1 {
  font-size: 2.5rem;
  color: var(--color-primary-dark);
  margin-bottom: 15px;
  font-family: var(--font-secondary);
}

.tutorial-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-bottom: 25px;
  max-width: 600px;
}

.tutorial-meta-header {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.tutorial-meta-header span {
  padding: 6px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
}

.difficulty.beginner {
  background: #d4edda;
  color: #155724;
}

.difficulty.intermediate {
  background: #fff3cd;
  color: #856404;
}

.difficulty.advanced {
  background: #f8d7da;
  color: #721c24;
}

.duration {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.last-updated {
  background: var(--color-card-bg);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

/* Tutorial Layout */
.tutorial-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  align-items: start;
}

/* Sidebar Navigation */
.tutorial-sidebar {
  position: sticky;
  top: 100px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 25px;
}

.tutorial-nav h3 {
  color: var(--color-primary-dark);
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

.tutorial-nav ul {
  list-style: none;
}

.tutorial-nav li {
  margin-bottom: 8px;
}

.tutorial-nav a {
  display: block;
  padding: 8px 12px;
  color: var(--color-text-light);
  border-radius: 6px;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.tutorial-nav a:hover,
.tutorial-nav a.active {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateX(4px);
}

/* Main Content */
.tutorial-content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 40px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.tutorial-section {
  margin-bottom: 50px;
}

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

.tutorial-section h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.8rem;
  color: var(--color-primary-dark);
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--color-border);
}

.section-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.tutorial-section h3 {
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  margin: 25px 0 15px 0;
}

.tutorial-section p {
  margin-bottom: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.tutorial-section ul,
.tutorial-section ol {
  margin: 15px 0;
  padding-left: 25px;
}

.tutorial-section li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Step Counter */
.step-counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 600;
  font-size: 0.9rem;
  margin-right: 15px;
  margin-bottom: 15px;
}

/* Info Boxes */
.info-box,
.warning-box,
.success-box,
.help-box {
  display: flex;
  gap: 15px;
  padding: 20px;
  border-radius: var(--border-radius);
  margin: 25px 0;
  border-left: 4px solid;
}

.info-box {
  background: #e7f3ff;
  border-left-color: var(--color-primary);
}

.warning-box {
  background: #fff3e0;
  border-left-color: #ff9800;
}

.success-box {
  background: #e8f5e8;
  border-left-color: #4caf50;
}

.help-box {
  background: #f3e5f5;
  border-left-color: #9c27b0;
}

.info-icon,
.warning-icon,
.success-icon,
.help-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-content,
.warning-content,
.success-content,
.help-content {
  flex: 1;
}

.info-content h4,
.warning-content h4,
.success-content h4,
.help-content h4 {
  color: var(--color-primary-dark);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.info-content p,
.warning-content p,
.success-content p,
.help-content p {
  margin: 0;
  line-height: 1.6;
}

.info-content ul,
.warning-content ul,
.success-content ul,
.help-content ul {
  margin: 10px 0 0 0;
  padding-left: 20px;
}

/* Checklist */
.checklist {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  margin: 20px 0;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
}

.checklist-item:last-child {
  border-bottom: none;
}

.checklist-item input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-primary);
  border-radius: 4px;
  position: relative;
  flex-shrink: 0;
}

.checklist-item input[type="checkbox"]:checked + .checkmark {
  background: var(--color-primary);
}

.checklist-item input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  color: white;
  font-size: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Settings Table */
.settings-table {
  margin: 20px 0;
  overflow-x: auto;
}

.settings-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.settings-table th,
.settings-table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.settings-table th {
  background: var(--color-card-bg);
  font-weight: 600;
  color: var(--color-primary-dark);
  font-size: 0.95rem;
}

.settings-table td {
  font-size: 0.9rem;
}

.settings-table code {
  background: var(--color-card-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
}

/* Troubleshooting */
.troubleshoot-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  margin: 20px 0;
}

.troubleshoot-item h3 {
  color: var(--color-primary-dark);
  margin-bottom: 15px;
}

.problem {
  background: #fff3e0;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  border-left: 4px solid #ff9800;
}

.solution {
  background: #e8f5e8;
  padding: 12px;
  border-radius: 6px;
  border-left: 4px solid #4caf50;
}

.problem strong,
.solution strong {
  color: var(--color-primary-dark);
}

/* Conclusion */
.tutorial-conclusion {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent-soft) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 40px;
  margin-top: 40px;
  text-align: center;
}

.tutorial-conclusion h2 {
  color: var(--color-primary-dark);
  font-size: 2rem;
  margin-bottom: 20px;
  border: none;
  padding: 0;
}

.next-steps {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 25px;
  margin: 25px 0;
  text-align: left;
}

.next-steps h3 {
  color: var(--color-primary-dark);
  margin-bottom: 15px;
}

.tutorial-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

/* External Links */
.external-link {
  color: var(--color-primary);
  border-bottom: 1px dotted var(--color-primary);
}

.external-link:hover {
  border-bottom-style: solid;
}

/* Responsive Design for Supabase Tutorial */
@media (max-width: 1024px) {
  .tutorial-container {
    grid-template-columns: 250px 1fr;
    gap: 30px;
  }

  .tutorial-content {
    padding: 30px;
  }
}

@media (max-width: 768px) {
  .tutorial-container {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }

  .tutorial-sidebar {
    position: static;
    order: -1;
  }

  .tutorial-nav {
    display: block; /* Show on mobile but could be made collapsible */
  }

  .tutorial-content {
    padding: 20px;
  }

  .tutorial-header h1 {
    font-size: 2rem;
  }

  .tutorial-meta-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .tutorial-actions {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .tutorial-header {
    padding: 40px 0;
  }

  .tutorial-header h1 {
    font-size: 1.7rem;
  }

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

  .tutorial-content {
    padding: 15px;
  }

  .tutorial-section h2 {
    font-size: 1.5rem;
  }

  .tutorial-section h3 {
    font-size: 1.2rem;
  }
}