/* ========================================
   TIMELINE STYLES - MY JOURNEY PAGE
   ======================================== */

/* Journey Hero Section */
.journey-main {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
  min-height: 100vh;
}

.journey-hero {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  color: var(--color-text-primary);
  animation: fadeInUp 0.8s ease-out;
}

.journey-hero h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.journey-hero p {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  font-weight: 300;
}

/* Timeline Container */
.timeline-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-xl);
  position: relative;
}

.timeline {
  position: relative;
  padding: var(--spacing-xl) 0;
}

/* Timeline Central Line */
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, 
    rgba(255, 255, 255, 0.1) 0%, 
    rgba(255, 255, 255, 0.5) 50%, 
    rgba(255, 255, 255, 0.1) 100%);
  border-radius: var(--radius-full);
}

/* Timeline Item */
.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-3xl);
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s ease-out;
}

.timeline-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Alternate Layout */
.timeline-item:nth-child(odd) .timeline-content {
  margin-left: auto;
  margin-right: calc(50% + 50px);
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: calc(50% + 50px);
  margin-right: auto;
  text-align: left;
}

/* Timeline Marker (Center Circle) */
.timeline-marker {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: 0 0 0 8px var(--color-primary),
              0 0 20px rgba(74, 144, 226, 0.5);
  transition: all var(--transition-base);
}

.timeline-item:hover .timeline-marker {
  transform: translateX(-50%) scale(1.2);
  box-shadow: 0 0 0 8px var(--color-primary),
              0 0 30px rgba(74, 144, 226, 0.8);
}

.timeline-icon {
  font-size: var(--font-size-2xl);
  animation: pulse-icon 2s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Timeline Event */
.timeline-event {
  position: relative;
  background: linear-gradient(135deg, rgba(26, 61, 99, 0.95) 0%, rgba(45, 90, 138, 0.95) 100%);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2xl);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  animation: slideInLeft 0.6s ease-out;
}

/* Light mode timeline events */
[data-theme="light"] .timeline-event {
  background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
  border-left: 4px solid #4a90e2;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .timeline-event h3 {
  color: #1a3d63;
}

[data-theme="light"] .timeline-event .event-date {
  color: #666;
}

[data-theme="light"] .timeline-event .event-description {
  color: #444;
}

[data-theme="light"] .timeline-event .event-tags span {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

/* Timeline Content Card */
.timeline-content {
  background: linear-gradient(135deg, rgba(11, 26, 48, 0.9) 0%, rgba(19, 42, 74, 0.9) 100%);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  max-width: 400px;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(74, 144, 226, 0.5);
}

/* Content Arrow Pointing to Center */
.timeline-item:nth-child(odd) .timeline-content::before {
  content: '';
  position: absolute;
  right: -15px;
  top: 20px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 0 15px 15px;
  border-color: transparent transparent transparent rgba(11, 26, 48, 0.9);
}

.timeline-item:nth-child(even) .timeline-content::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 20px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 15px 15px 0;
  border-color: transparent rgba(11, 26, 48, 0.9) transparent transparent;
}

/* Timeline Date */
.timeline-date {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Timeline Heading */
.timeline-content h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  line-height: 1.3;
}

/* Timeline Badge */
.timeline-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(74, 144, 226, 0.2);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-accent);
}

.timeline-badge.education {
  background: rgba(76, 175, 80, 0.2);
  color: #4caf50;
  border-color: #4caf50;
}

.timeline-badge.career {
  background: rgba(156, 39, 176, 0.2);
  color: #9c27b0;
  border-color: #9c27b0;
}

.timeline-badge.project {
  background: rgba(255, 152, 0, 0.2);
  color: #ff9800;
  border-color: #ff9800;
}

.timeline-badge.achievement {
  background: rgba(244, 67, 54, 0.2);
  color: #f44336;
  border-color: #f44336;
}

/* Timeline Content Text */
.timeline-content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Project Links */
.project-link {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  transition: color var(--transition-base);
  position: relative;
}

.project-link:hover {
  color: var(--color-accent-hover);
  text-decoration: none;
}

.project-link::after {
  content: ' →';
  display: inline-block;
  transition: transform var(--transition-fast);
}

.project-link:hover::after {
  transform: translateX(5px);
}

/* Timeline Media Elements */
.timeline-media {
  margin-top: var(--spacing-lg);
  width: 100%;
  overflow: hidden;
}

.timeline-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: block;
  transition: transform var(--transition-base);
}

.timeline-media img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* Responsive YouTube/Video Embed Container */
.timeline-media-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: rgba(0, 0, 0, 0.2);
}

.timeline-media-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius-lg);
}

/* Journey CTA Section */
.journey-cta {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  color: var(--color-text-primary);
  margin-top: var(--spacing-3xl);
}

.journey-cta h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.journey-cta p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* ========================================
   RESPONSIVE - MOBILE TIMELINE
   ======================================== */

/* Tablets and below */
@media (max-width: 768px) {
  .journey-hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  .journey-hero p {
    font-size: var(--font-size-base);
  }
  
  .timeline-container {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  /* Single column layout */
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 80px;
    margin-right: 0;
    text-align: left;
    max-width: 100%;
  }
  
  .timeline-marker {
    left: 30px;
  }
  
  .timeline-item:hover .timeline-marker {
    transform: translateX(0) scale(1.2);
  }
  
  /* Adjust arrows for mobile */
  .timeline-item:nth-child(odd) .timeline-content::before,
  .timeline-item:nth-child(even) .timeline-content::before {
    left: -15px;
    right: auto;
    border-width: 15px 15px 15px 0;
    border-color: transparent rgba(11, 26, 48, 0.9) transparent transparent;
  }
  
  .timeline-content {
    padding: var(--spacing-lg);
  }
  
  .timeline-marker {
    width: 50px;
    height: 50px;
  }
  
  .timeline-icon {
    font-size: var(--font-size-xl);
  }
}

/* Mobile phones */
@media (max-width: 576px) {
  .timeline::before {
    left: 20px;
  }
  
  .timeline-marker {
    left: 20px;
    width: 40px;
    height: 40px;
  }
  
  .timeline-icon {
    font-size: var(--font-size-lg);
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
  }
  
  .timeline-content h3 {
    font-size: var(--font-size-lg);
  }
  
  .timeline-content p {
    font-size: var(--font-size-sm);
  }
  
  .journey-cta h2 {
    font-size: var(--font-size-2xl);
  }
}