/* ================================================
   THEME SYSTEM - Dark/Light Mode Support
   ================================================ */

/* Dark Theme Variables */
[data-theme="dark"] {
  /* Base Colors */
  --color-background: #0a0a0a;
  --color-surface: #1a1a1a;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-border: #27272a;
  --color-border-light: #3f3f46;
  
  /* Glass Effects - Dark Mode */
  --glass-bg: rgba(0, 0, 0, 0.4);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  
  /* Web3 Colors - Dark Mode Variants */
  --color-primary: #60a5fa;
  --color-primary-hover: #3b82f6;
  --color-secondary: #c084fc;
  --color-secondary-hover: #a855f7;
  --color-accent: #34d399;
  --color-accent-hover: #10b981;
  
  /* Gradient Orbs - Dark Mode */
  --orb-gradient-1: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(192, 132, 252, 0.2));
  --orb-gradient-2: linear-gradient(135deg, rgba(192, 132, 252, 0.15), rgba(52, 211, 153, 0.15));
  --orb-gradient-3: linear-gradient(135deg, rgba(52, 211, 153, 0.2), rgba(96, 165, 250, 0.2));
}

/* Light Theme Variables (Default) */
:root {
  /* Light theme variables are already defined in main.css */
  --orb-gradient-1: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
  --orb-gradient-2: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(16, 185, 129, 0.1));
  --orb-gradient-3: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(59, 130, 246, 0.15));
}

/* ================================================
   THEME TRANSITION EFFECTS
   ================================================ */
body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

.glass-card {
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.nav-container {
  transition: background 0.3s ease, border-color 0.3s ease;
}

.theme-toggle {
  transition: all 0.3s ease;
}

/* ================================================
   DARK MODE SPECIFIC ADJUSTMENTS
   ================================================ */
[data-theme="dark"] .gradient-orb.orb-1 {
  background: var(--orb-gradient-1);
}

[data-theme="dark"] .gradient-orb.orb-2 {
  background: var(--orb-gradient-2);
}

[data-theme="dark"] .gradient-orb.orb-3 {
  background: var(--orb-gradient-3);
}

/* Dark mode button styles */
[data-theme="dark"] .btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .btn-tertiary {
  border-color: var(--color-border);
}

[data-theme="dark"] .btn-tertiary:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

/* Dark mode navigation */
[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
  background: rgba(96, 165, 250, 0.15);
}

/* ================================================
   PROJECT PAGE SPECIFIC STYLES
   ================================================ */

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  padding: 0 var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: 0 auto var(--spacing-4xl);
}

.project-card {
  position: relative;
  transition: all var(--transition-normal);
  border-radius: var(--radius-xl);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.project-card.featured {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--glass-bg), rgba(59, 130, 246, 0.05));
}

.project-header {
  margin-bottom: var(--spacing-lg);
}

.project-title {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.tag {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.project-content p {
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.project-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.project-highlights span {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-sm);
}

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.project-status {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.status-completed {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-accent);
}

.status-in-progress {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-primary);
}

.status-ongoing {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-secondary);
}

.project-link {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.project-link:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

/* ================================================
   ABOUT PAGE SPECIFIC STYLES
   ================================================ */

.about-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg) var(--spacing-4xl);
  display: grid;
  gap: var(--spacing-2xl);
}

.about-bio {
  grid-column: 1 / -1;
}

.bio-text p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.quick-facts {
  grid-column: 1 / -1;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.fact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
}

.fact-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.fact-content h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.skills-section {
  display: grid;
  gap: var(--spacing-xl);
}

.skill-category {
  padding: var(--spacing-lg);
  background: rgba(59, 130, 246, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

.skill-category h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  background: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.skill-note {
  margin-top: var(--spacing-lg);
  font-style: italic;
  color: var(--color-text-muted);
}

/* Timeline */
.timeline-section {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg) var(--spacing-4xl);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: var(--spacing-lg);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
}

.timeline-marker {
  position: absolute;
  left: -24px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-background);
}

.timeline-content h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

/* ================================================
   CONTACT PAGE SPECIFIC STYLES
   ================================================ */

.contact-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg) var(--spacing-4xl);
  display: grid;
  gap: var(--spacing-2xl);
}

.contact-intro {
  grid-column: 1 / -1;
}

.contact-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
}

.highlight-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.highlight-text h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.contact-card {
  text-align: center;
  transition: transform var(--transition-normal);
}

.contact-card:hover {
  transform: translateY(-5px);
}

.contact-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
}

.contact-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.contact-card p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
}

.contact-link {
  display: block;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  word-break: break-all;
}

.contact-info {
  grid-column: 1 / -1;
}

.contact-times {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.time-zone h3,
.response-time h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.interests-section {
  grid-column: 1 / -1;
}

.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.interest-item {
  padding: var(--spacing-lg);
  background: rgba(59, 130, 246, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(59, 130, 246, 0.1);
  transition: all var(--transition-normal);
}

.interest-item:hover {
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-3px);
}

.interest-icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  display: block;
}

.interest-item h3 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

/* ================================================
   CTA SECTIONS
   ================================================ */

.cta-section {
  max-width: var(--container-max-width);
  margin: var(--spacing-4xl) auto;
  padding: 0 var(--spacing-lg);
}

.cta-card {
  text-align: center;
  background: linear-gradient(135deg, var(--glass-bg), rgba(59, 130, 246, 0.05));
  border: 2px solid rgba(59, 130, 246, 0.2);
}

.cta-card h2 {
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-card p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ================================================
   RESPONSIVE DESIGN ADDITIONS
   ================================================ */

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .project-card.featured {
    grid-column: span 1;
  }
  
  .facts-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-methods {
    grid-template-columns: 1fr;
  }
  
  .contact-times {
    grid-template-columns: 1fr;
  }
  
  .interests-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .timeline {
    padding-left: var(--spacing-lg);
  }
  
  .timeline::before {
    left: var(--spacing-sm);
  }
  
  .timeline-marker {
    left: -18px;
  }
}

/* ================================================
   UTILITY CLASSES
   ================================================ */

.copy-email {
  cursor: pointer;
}

.copy-email:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* Dark mode specific utility adjustments */
[data-theme="dark"] .skill-category {
  background: rgba(96, 165, 250, 0.05);
  border-color: rgba(96, 165, 250, 0.1);
}

[data-theme="dark"] .interest-item {
  background: rgba(96, 165, 250, 0.05);
  border-color: rgba(96, 165, 250, 0.1);
}

[data-theme="dark"] .interest-item:hover {
  background: rgba(96, 165, 250, 0.1);
}