/* ============================================================================
   BASE RESET (same as main site)
   ============================================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: #0a0a0a;
  color: #ffffff;
  line-height: 1.5;
}

/* Hide video controls */
video {
  pointer-events: none !important;
  -webkit-user-select: none !important;
  user-select: none !important;
}
video::-webkit-media-controls,
video::-webkit-media-controls-enclosure,
video::-webkit-media-controls-panel,
video::-webkit-media-controls-play-button,
video::-webkit-media-controls-start-playback-button,
video::-webkit-media-controls-overlay-play-button,
video::-webkit-media-controls-picture-in-picture-button,
video::-webkit-media-controls-overlay-enclosure {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  -webkit-appearance: none !important;
  width: 0 !important;
  height: 0 !important;
}
video::-moz-media-controls { display: none !important; }
video::-ms-media-controls { display: none !important; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #0a0a0a; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #444; }
::selection { background: rgba(139, 92, 246, 0.4); color: white; }

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

.timeline-page {
  min-height: 100vh;
  background: #0a0a0a;
  color: #fff;
  overflow-x: hidden;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.timeline-header {
  padding: 24px 32px;
  text-align: center;
  position: relative;
}

.timeline-back {
  position: absolute;
  left: 32px;
  top: 50%;
  transform: translateY(-50%);
  color: #888;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

.timeline-back:hover {
  color: #fff;
}

.timeline-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin: 0;
  background: linear-gradient(135deg, #fff 0%, #888 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.timeline-subtitle {
  color: #666;
  font-size: 14px;
  margin-top: 8px;
}

/* ============================================================================
   LEGEND
   ============================================================================ */

.timeline-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 16px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #888;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ============================================================================
   HORIZONTAL TIMELINE CONTAINER (Desktop)
   ============================================================================ */

.timeline-container {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  cursor: grab;
  padding: 40px 0;
  -webkit-overflow-scrolling: touch;
}

.timeline-container::-webkit-scrollbar { height: 8px; }
.timeline-container::-webkit-scrollbar-track { background: #1a1a1a; }
.timeline-container::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
.timeline-container::-webkit-scrollbar-thumb:hover { background: #444; }

/* ============================================================================
   TIMELINE TRACK
   ============================================================================ */

.timeline-track {
  display: flex;
  align-items: center;
  position: relative;
  padding: 150px 100px;
  min-width: fit-content;
  gap: 20px;
}

.timeline-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    transparent 0%,
    #ef4444 5%,
    #ef4444 15%,
    #f59e0b 25%,
    #f59e0b 35%,
    #ffffff 45%,
    #ffffff 55%,
    #478cbf 65%,
    #478cbf 85%,
    #10b981 95%,
    transparent 100%
  );
  transform: translateY(-50%);
  border-radius: 2px;
}

/* ============================================================================
   TIMELINE ITEMS
   ============================================================================ */

.timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 160px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.timeline-item:hover {
  transform: scale(1.05);
}

.timeline-item--selected {
  transform: scale(1.05);
}

/* Dot */
.timeline-item__dot {
  width: 20px;
  height: 20px;
  background: var(--item-color);
  border-radius: 50%;
  border: 4px solid #0a0a0a;
  box-shadow: 0 0 0 2px var(--item-color), 0 0 20px var(--item-color);
  z-index: 2;
  transition: transform 0.3s, box-shadow 0.3s;
}

.timeline-item:hover .timeline-item__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 3px var(--item-color), 0 0 30px var(--item-color);
}

/* Year Badge */
.timeline-item__year {
  position: absolute;
  font-size: 11px;
  font-weight: 600;
  color: var(--item-color);
  white-space: nowrap;
  padding: 4px 8px;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 4px;
  border: 1px solid var(--item-color);
}

/* Card */
.timeline-item__card {
  position: absolute;
  width: 160px;
  padding: 12px;
  background: #151515;
  border-radius: 8px;
  border: 1px solid #2a2a2a;
  transition: all 0.3s ease;
  user-select: none;
}

.timeline-item:hover .timeline-item__card {
  border-color: var(--item-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.timeline-item--selected .timeline-item__card {
  border-color: var(--item-color);
  background: #1a1a1a;
}

.timeline-item__card h3 {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 6px 0;
  color: #fff;
  line-height: 1.3;
}

.timeline-item__card p {
  font-size: 11px;
  color: #888;
  margin: 0;
  line-height: 1.4;
}

/* Card positioning - alternating top/bottom */
.timeline-item__card--top {
  bottom: calc(50% + 40px);
}

.timeline-item__card--bottom {
  top: calc(50% + 40px);
}

/* Year positioning based on card position */
.timeline-item:has(.timeline-item__card--top) .timeline-item__year {
  top: calc(50% + 20px);
}

.timeline-item:has(.timeline-item__card--bottom) .timeline-item__year {
  bottom: calc(50% + 20px);
}

/* Type-specific styles */
.timeline-item--era .timeline-item__dot {
  width: 28px;
  height: 28px;
}

.timeline-item--era .timeline-item__card {
  width: 180px;
}

.timeline-item--era .timeline-item__card h3 {
  font-size: 14px;
}

.timeline-item--milestone .timeline-item__dot {
  border-radius: 4px;
  transform: rotate(45deg);
}

.timeline-item--milestone:hover .timeline-item__dot {
  transform: rotate(45deg) scale(1.3);
}

/* ============================================================================
   DETAIL PANEL
   ============================================================================ */

.timeline-detail {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.timeline-detail__content {
  background: #151515;
  border-radius: 16px;
  padding: 32px;
  width: fit-content;
  min-width: 500px;
  max-width: min(95vw, 1200px);
  height: 541px;
  max-height: 541px;
  overflow-y: auto;
  position: relative;
  border: 1px solid #2a2a2a;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.timeline-detail__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: #2a2a2a;
  color: #888;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  z-index: 10;
}

.timeline-detail__close:hover {
  background: #3a3a3a;
  color: #fff;
}

.timeline-detail__year {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-detail__content h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 8px 0 12px 0;
  color: #fff;
}

.timeline-detail__desc {
  color: #888;
  font-size: 14px;
  margin: 0 0 16px 0;
  padding-bottom: 16px;
  border-bottom: 1px solid #2a2a2a;
}

.timeline-detail__story {
  color: #ccc;
  font-size: 15px;
  line-height: 1.7;
}

.timeline-detail__video {
  width: 500px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 16px;
  background: #000;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.timeline-detail__embed {
  margin-bottom: 20px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #2a2a2a;
}

.timeline-detail__embed iframe {
  display: block;
  border: none;
}

/* ============================================================================
   MOBILE VERTICAL TIMELINE
   ============================================================================ */

.timeline-vertical {
  display: none;
  padding: 20px 16px 40px 16px;
}

@media (max-width: 768px) {
  .timeline-vertical {
    display: block;
  }

  .timeline-container {
    display: none;
  }
}

.timeline-vertical__item {
  position: relative;
  padding-left: 32px;
  padding-bottom: 24px;
  cursor: pointer;
}

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

.timeline-vertical__line {
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--item-color) 0%, var(--item-color) 100%);
}

.timeline-vertical__item:last-child .timeline-vertical__line {
  height: 16px;
}

.timeline-vertical__dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--item-color);
  border-radius: 50%;
  border: 3px solid #0a0a0a;
  box-shadow: 0 0 0 2px var(--item-color);
  z-index: 2;
}

.timeline-vertical__item--era .timeline-vertical__dot {
  width: 20px;
  height: 20px;
  left: -2px;
}

.timeline-vertical__item--milestone .timeline-vertical__dot {
  border-radius: 3px;
  transform: rotate(45deg);
}

.timeline-vertical__content {
  background: #151515;
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid #2a2a2a;
  transition: all 0.2s ease;
}

.timeline-vertical__item:active .timeline-vertical__content {
  background: #1a1a1a;
  border-color: var(--item-color);
}

.timeline-vertical__year {
  font-size: 11px;
  font-weight: 600;
  color: var(--item-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.timeline-vertical__content h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 4px 0 6px 0;
  color: #fff;
}

.timeline-vertical__content p {
  font-size: 13px;
  color: #888;
  margin: 0;
  line-height: 1.4;
}

/* ============================================================================
   MOBILE DETAIL PANEL (YouTube-style full screen)
   ============================================================================ */

.timeline-detail--mobile {
  padding: 0;
  align-items: flex-start;
  background: #0a0a0a;
}

.timeline-detail--mobile .timeline-detail__content {
  width: 100%;
  max-width: 100%;
  min-width: 100%;
  height: 100vh;
  max-height: 100vh;
  border-radius: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  animation: slideIn 0.25s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

.timeline-detail--mobile .timeline-detail__close {
  position: absolute;
  top: 12px;
  left: 12px;
  right: auto;
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-detail--mobile .timeline-detail__close svg {
  width: 20px;
  height: 20px;
}

.timeline-detail--mobile .timeline-detail__video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border-radius: 0;
  margin: 0;
  flex-shrink: 0;
}

.timeline-detail--mobile .timeline-detail__embed {
  margin: 0;
  border-radius: 0;
  border: none;
  flex-shrink: 0;
}

.timeline-detail--mobile .timeline-detail__embed iframe {
  aspect-ratio: 16 / 9;
  height: auto;
}

.timeline-detail--mobile .timeline-detail__info {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  background: #0a0a0a;
}

.timeline-detail--mobile .timeline-detail__info--no-media {
  padding-top: 56px;
}

.timeline-detail--mobile .timeline-detail__year {
  font-size: 12px;
}

.timeline-detail--mobile .timeline-detail__content h2 {
  font-size: 18px;
  margin: 6px 0 10px 0;
  padding-right: 0;
}

.timeline-detail--mobile .timeline-detail__desc {
  font-size: 13px;
  margin-bottom: 12px;
  padding-bottom: 12px;
}

.timeline-detail--mobile .timeline-detail__story {
  font-size: 14px;
  line-height: 1.6;
}

/* ============================================================================
   MOBILE HEADER & LEGEND
   ============================================================================ */

@media (max-width: 768px) {
  .timeline-header {
    padding: 16px;
  }

  .timeline-back {
    position: relative;
    left: 0;
    transform: none;
    display: block;
    margin-bottom: 12px;
    text-align: left;
  }

  .timeline-header h1 {
    font-size: 24px;
  }

  .timeline-legend {
    gap: 8px 16px;
    padding: 12px 16px;
  }

  .legend-item {
    font-size: 10px;
  }
}

/* ============================================================================
   SCROLL HINT (Desktop only)
   ============================================================================ */

.timeline-container::after {
  content: '\2190 Drag to scroll \2192';
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #444;
  font-size: 12px;
  pointer-events: none;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@media (max-width: 768px) {
  .timeline-container::after {
    display: none;
  }
}