/**
 * Timeline/Experience Section Styles
 * Using CSS custom properties for maintainability
 */

/* Timeline Container */
.timeline-container {
  position: relative;
  padding: var(--spacing-xl) 0;
}

/* Vertical line */
.timeline-container::before {
  content: '';
  position: absolute;
  left: var(--timeline-line-left);
  top: 0;
  bottom: 0;
  width: var(--timeline-line-width);
  background: var(--gradient-line);
}

/* Timeline Item */
.timeline-item {
  position: relative;
  padding-left: var(--timeline-item-padding-left);
  padding-bottom: var(--timeline-item-padding-bottom);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

/* Timeline Marker */
.timeline-marker {
  position: absolute;
  left: 0;
  top: 0;
}

.timeline-icon {
  width: var(--icon-size-lg);
  height: var(--icon-size-lg);
  border-radius: var(--radius-circle);
  background: var(--color-bg-white);
  border: var(--timeline-icon-border-width) solid var(--color-primary-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--timeline-icon-font-size);
  color: var(--color-primary-gold);
  box-shadow: var(--shadow-xs);
  transition: var(--transition-base);
  z-index: var(--z-index-overlay);
}

.timeline-item:hover .timeline-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

/* Timeline Date Badge */
.timeline-date {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-lg);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  letter-spacing: var(--timeline-letter-spacing);
}

/* Timeline Card */
.timeline-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  padding: var(--card-padding);
  transition: var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.timeline-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(var(--timeline-hover-translate));
}

/* Timeline Header */
.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: var(--timeline-border-width) solid var(--color-border-lightest);
}

.timeline-company-info {
  flex: 1;
}

.timeline-position {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

/* Timeline Company */
.timeline-company {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.timeline-company a {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-gold-dark);
  text-decoration: none;
  transition: var(--transition-fast);
}

.timeline-company a:hover {
  color: var(--color-primary-gold-darker);
  text-decoration: underline;
}

/* Timeline Location */
.timeline-location {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.timeline-location i {
  font-size: var(--font-size-base);
}

/* Timeline Icons (Technology logos) */
.timeline-icons {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.timeline-icons img {
  transition: var(--transition-base);
}

.timeline-icons img:hover {
  transform: scale(1.1);
}

/* Timeline Body */
.timeline-body {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

/* Project Items within Timeline */
.project-item {
  margin-bottom: var(--spacing-xl);
}

.project-item:last-child {
  margin-bottom: 0;
}

.project-name {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
  padding-bottom: var(--timeline-project-padding-bottom);
  border-bottom: var(--timeline-project-border-width) solid var(--color-primary-gold);
}

.project-description {
  margin-bottom: 0;
  text-align: justify;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .timeline-container::before {
    left: var(--timeline-line-left-mobile);
  }

  .timeline-item {
    padding-left: var(--timeline-item-padding-left-mobile);
  }

  .timeline-icon {
    width: var(--icon-size-sm);
    height: var(--icon-size-sm);
    font-size: var(--timeline-icon-font-size-mobile);
    border-width: var(--timeline-icon-border-width-mobile);
  }

  .timeline-date {
    font-size: var(--font-size-sm);
    padding: var(--timeline-date-padding-mobile) var(--spacing-md);
  }

  .timeline-card {
    padding: var(--card-padding-sm);
  }

  .timeline-header {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .timeline-position {
    font-size: var(--font-size-3xl);
  }

  .timeline-icons {
    align-self: flex-start;
  }

  .timeline-icons img {
    width: var(--timeline-img-size-mobile);
    height: var(--timeline-img-size-mobile);
  }

  .project-name {
    font-size: var(--font-size-xl);
  }

  .timeline-body {
    font-size: var(--font-size-md);
  }

  .company-logo-wrapper {
    margin-right: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
  }

  .company-logo {
    width: 48px;
    height: 48px;
  }
}

/* Print styles */
@media print {
  .timeline-container::before {
    background: #cccccc;
  }

  .timeline-card {
    box-shadow: none;
    border: 1px solid var(--color-border-dark);
    page-break-inside: avoid;
  }

  .timeline-item {
    page-break-inside: avoid;
  }
}

/* Company Logo */
.company-logo-wrapper {
  margin-right: var(--spacing-lg);
  flex-shrink: 0;
}

.company-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  background: var(--color-bg-white);
  padding: var(--spacing-xs);
  transition: var(--transition-base);
  box-shadow: var(--shadow-xs);
}

.company-logo:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

/* Accessibility: Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  .timeline-icon,
  .timeline-card,
  .timeline-icons img,
  .timeline-company a,
  .company-logo {
    transition: none;
  }

  .timeline-item:hover .timeline-icon,
  .timeline-card:hover,
  .company-logo:hover {
    transform: none;
  }
}