/* ============================================
   TIMELINE PAGE STYLES
   ============================================ */

/* Timeline Hero */
.timeline-hero {
  padding: 180px 0 80px;
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
  text-align: center;
}

.timeline-hero .section-title {
  color: var(--color-text-main);
  font-size: 4rem;
  margin-bottom: 16px;
}

.timeline-hero .section-desc {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
  text-align: center;
}

.timeline-stats {
  display: flex;
  justify-content: center;
  gap: 64px;
  margin-top: 48px;
}

.timeline-stat .stat-number {
  color: var(--color-accent);
  font-size: 3rem;
}

.timeline-stat .stat-label {
  color: var(--color-text-muted);
}

/* Timeline Container */
.timeline-section {
  padding: 80px 0;
  background-color: var(--color-bg-light);
}

.timeline {
  position: relative;
  padding: 40px 0;
}

/* Vertical center line */
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--color-accent) 5%,
    var(--color-accent) 95%,
    transparent
  );
}

/* ---- Year Marker ---- */
.timeline-year {
  position: relative;
  text-align: center;
  margin: 60px 0 40px;
  z-index: 2;
}

.timeline-year:first-child {
  margin-top: 0;
}

.timeline-year-label {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-bg-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  padding: 12px 32px;
  letter-spacing: 0.05em;
}

/* ---- Timeline Item (Project) ---- */
.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 60px 60px;
}

/* Left-aligned items */
.timeline-item.left {
  left: 0;
  text-align: right;
}

/* Right-aligned items */
.timeline-item.right {
  left: 50%;
  text-align: left;
}

/* Dot on the line */
.timeline-item::before {
  content: "";
  position: absolute;
  top: 8px;
  width: 14px;
  height: 14px;
  background-color: var(--color-accent);
  border: 3px solid var(--color-bg-light);
  border-radius: 50%;
  z-index: 2;
}

.timeline-item.left::before {
  right: -7px;
}

.timeline-item.right::before {
  left: -7px;
}

/* Connector line from dot to card */
.timeline-item::after {
  content: "";
  position: absolute;
  top: 14px;
  width: 40px;
  height: 2px;
  background-color: var(--color-accent);
  opacity: 0.3;
}

.timeline-item.left::after {
  right: 7px;
}

.timeline-item.right::after {
  left: 7px;
}

/* ---- Timeline Card Link ---- */
.timeline-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

/* ---- Timeline Card ---- */
.timeline-card {
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.timeline-card:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  border-color: var(--color-accent);
}

.timeline-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.timeline-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.timeline-card:hover .timeline-card-image img {
  transform: scale(1.05);
}

.timeline-card-body {
  padding: 24px;
}

.timeline-card-category {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 8px;
  line-height: 1.3;
}

.timeline-card-location {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Align location to the right for left-side cards */
.timeline-item.left .timeline-card-location {
  justify-content: flex-end;
}

.timeline-card-location::before {
  font-size: 0.8rem;
}

.timeline-card-desc {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

.timeline-card-meta {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
  flex-wrap: wrap;
}

.timeline-item.left .timeline-card-meta {
  justify-content: flex-end;
}

.timeline-meta-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #999;
  font-weight: 600;
  background: #f8f8f8;
  padding: 4px 10px;
}

.timeline-see-more {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.timeline-see-more:hover {
  opacity: 0.7;
}

.timeline-item.left .timeline-see-more {
  margin-left: 0;
  margin-right: auto;
  order: -1;
}
/* ---- Timeline Card Client Badge ---- */
.timeline-card-client-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background-color: rgba(255, 193, 7, 0.85);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #333;
  z-index: 1;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.timeline-card:hover .timeline-card-client-badge {
  opacity: 1;
}

.timeline-client-name {
  display: inline;
}
/* ---- Timeline Card Client ---- */
.timeline-card-client {
  display: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #f0f0f0;
  font-size: 0.85rem;
  color: #666;
}

.timeline-card:hover .timeline-card-client {
  display: block;
}

.timeline-client-label {
  font-weight: 600;
  color: var(--color-accent);
  margin-right: 4px;
}

.timeline-client-name {
  color: #333;
  font-weight: 500;
}

/* ---- Timeline End Cap ---- */
.timeline-end {
  text-align: center;
  padding: 40px 0;
  position: relative;
  z-index: 2;
}

.timeline-end-dot {
  display: inline-block;
  width: 20px;
  height: 20px;
  background-color: var(--color-accent);
  border-radius: 50%;
  border: 4px solid var(--color-bg-light);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-end-text {
  display: block;
  margin-top: 16px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* ---- Year filter nav ---- */
.timeline-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
}

.timeline-filter-btn {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 20px;
  border: 1px solid #ddd;
  background: transparent;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
}

.timeline-filter-btn:hover,
.timeline-filter-btn.active {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-color: var(--color-accent);
}

/* ---- Year group toggle ---- */
.timeline-group {
  transition:
    opacity 0.4s ease,
    max-height 0.5s ease;
  overflow: hidden;
}

.timeline-group-hidden {
  opacity: 0;
  max-height: 0 !important;
  overflow: hidden;
  pointer-events: none;
  margin: 0;
  padding: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .timeline-hero .section-title {
    font-size: 3rem;
  }

  .timeline-item {
    padding: 0 40px 40px;
  }

  .timeline-card-title {
    font-size: 1.1rem;
  }

  .timeline-stats {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .timeline-hero {
    padding: 140px 0 60px;
  }

  .timeline-hero .section-title {
    font-size: 2.2rem;
  }

  .timeline-stats {
    flex-direction: column;
    gap: 24px;
    align-items: center;
  }

  .timeline-stat .stat-number {
    font-size: 2.2rem;
  }

  /* Switch to single-column left-aligned timeline */
  .timeline::before {
    left: 20px;
  }

  .timeline-year {
    text-align: left;
    margin: 40px 0 24px;
    padding-left: 50px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding: 0 0 40px 50px;
  }

  .timeline-item::before {
    left: 13px !important;
    right: auto !important;
  }

  .timeline-item::after {
    left: 27px !important;
    right: auto !important;
    width: 16px;
  }

  .timeline-item.left .timeline-card-location,
  .timeline-item.left .timeline-card-meta {
    justify-content: flex-start;
  }

  .timeline-card-body {
    padding: 16px;
  }

  .timeline-card-title {
    font-size: 1.05rem;
  }

  .timeline-card-desc {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .timeline-hero .section-title {
    font-size: 1.8rem;
  }

  .timeline::before {
    left: 12px;
  }

  .timeline-year {
    padding-left: 36px;
  }

  .timeline-year-label {
    font-size: 1.2rem;
    padding: 8px 20px;
  }

  .timeline-item {
    padding: 0 0 32px 36px;
  }

  .timeline-item::before {
    left: 5px !important;
    width: 12px;
    height: 12px;
  }

  .timeline-item::after {
    left: 17px !important;
    width: 12px;
  }

  .timeline-card-image {
    aspect-ratio: 16/9;
  }
}

.timeline-loader {
  display: flex;
  justify-content: center;
  padding: 40px 0 20px;
  position: relative;
  z-index: 2;
}

.timeline-loader-hidden {
  display: none;
}

.timeline-loader-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: timeline-spin 0.7s linear infinite;
}

@keyframes timeline-spin {
  to {
    transform: rotate(360deg);
  }
}