/* ═══════════════════════════════════════════
   PDOOM Interactive Timeline Styles
   ═══════════════════════════════════════════ */

/* ── Page header ── */
.tl-page { max-width: 1200px; margin: 0 auto; padding: 0 24px 80px; }
.tl-page-header { text-align: center; padding: 48px 20px 32px; }
.tl-page-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px; font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}
.tl-page-subtitle {
  font-family: 'Crimson Pro', serif;
  font-size: 19px; font-style: italic;
  color: var(--text-secondary);
  max-width: 640px; margin: 0 auto;
  line-height: 1.5;
}

/* ── Controls bar ── */
.tl-controls {
  position: sticky; top: 48px; z-index: 90;
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  margin-bottom: 8px;
}
.tl-controls-inner {
  display: flex; flex-wrap: wrap;
  align-items: center; gap: 12px;
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px;
}
.tl-search-wrap { flex: 0 0 220px; }
.tl-search {
  width: 100%;
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: 6px; padding: 7px 12px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  outline: none; transition: border-color 0.2s;
}
.tl-search:focus { border-color: var(--accent-red); }
.tl-search::placeholder { color: var(--text-muted); }

.tl-filters {
  display: flex; flex-wrap: wrap; gap: 6px;
  flex: 1;
}
.tl-filter-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.3px; text-transform: uppercase;
  padding: 4px 10px; border-radius: 12px;
  border: 1px solid var(--border-light);
  background: transparent; color: var(--text-muted);
  cursor: pointer; transition: all 0.2s;
  white-space: nowrap;
}
.tl-filter-pill:hover { border-color: var(--text-secondary); color: var(--text-secondary); }
.tl-filter-pill.active { border-color: currentColor; }

/* ── Era nav (jump bar) ── */
.tl-era-nav {
  padding: 16px 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tl-era-nav-inner {
  display: flex; gap: 4px;
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px;
}
.tl-era-jump {
  display: flex; flex-direction: column;
  padding: 8px 14px; border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-decoration: none; transition: all 0.2s;
  white-space: nowrap; flex-shrink: 0;
}
.tl-era-jump:hover { border-color: var(--accent-red); background: var(--bg-card-hover); }
.tl-era-jump.active {
  border-color: var(--accent-red);
  background: rgba(230,57,70,0.08);
}
.tl-era-jump-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; font-weight: 600; color: var(--text-primary);
}
.tl-era-jump-years {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; color: var(--text-muted);
  margin-top: 2px;
}

/* ── Sticky era indicator ── */
.tl-era-sticky {
  position: fixed; top: 108px; left: 50%;
  transform: translateX(-50%) translateY(-10px);
  z-index: 80;
  background: rgba(10,10,15,0.95);
  border: 1px solid var(--accent-red);
  border-radius: 20px;
  padding: 6px 18px;
  display: flex; align-items: center; gap: 10px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.tl-era-sticky.visible {
  opacity: 1; pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.tl-era-sticky-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; font-weight: 600;
  color: var(--accent-red);
}
.tl-era-sticky-years {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--text-muted);
}

/* ── Timeline track ── */
.tl-track {
  position: relative;
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px;
}

/* Central vertical line */
.tl-track::before {
  content: '';
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom,
    transparent,
    var(--border-light) 80px,
    var(--border-light) calc(100% - 80px),
    transparent
  );
  transform: translateX(-50%);
}

/* ── Era sections ── */
.tl-era-section { position: relative; padding: 20px 0; }

.tl-era-header {
  display: flex; align-items: center; gap: 20px;
  margin: 40px 0 32px;
  position: relative; z-index: 2;
}
.tl-era-section:first-child .tl-era-header { margin-top: 16px; }

.tl-era-line {
  flex: 1; height: 1px;
  background: linear-gradient(to right, transparent, var(--accent-red), transparent);
  opacity: 0.3;
}
.tl-era-header-content {
  text-align: center;
  flex-shrink: 0;
  max-width: 480px;
  padding: 0 8px;
}
.tl-era-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px; font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}
.tl-era-years {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--accent-red);
  letter-spacing: 1px;
  display: block; margin-bottom: 10px;
}
.tl-era-desc {
  font-family: 'Crimson Pro', serif;
  font-size: 15px; line-height: 1.55;
  color: var(--text-secondary);
}

.tl-empty-era {
  text-align: center;
  padding: 30px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--text-muted);
  font-style: italic;
}

/* ── Entry positioning (alternating sides) ── */
.tl-entry {
  position: relative;
  display: flex;
  margin-bottom: 24px;
  min-height: 60px;
}
.tl-entry--left {
  justify-content: flex-start;
  padding-right: calc(50% + 24px);
}
.tl-entry--right {
  justify-content: flex-end;
  padding-left: calc(50% + 24px);
}

/* ── Node on the center line ── */
.tl-node {
  position: absolute;
  left: 50%; top: 24px;
  width: 14px; height: 14px;
  border: 2px solid var(--accent-red);
  border-radius: 50%;
  background: var(--bg-primary);
  transform: translateX(-50%);
  z-index: 3;
  transition: all 0.2s;
}
.tl-entry:hover .tl-node {
  background: var(--accent-red);
  box-shadow: 0 0 12px rgba(230,57,70,0.5);
}

/* ── Date label ── */
.tl-date-label {
  position: absolute;
  top: 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}
.tl-entry--left .tl-date-label {
  left: calc(50% + 20px);
}
.tl-entry--right .tl-date-label {
  right: calc(50% + 20px);
  text-align: right;
}

/* ── Cards (base) ── */
.tl-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.25s;
  width: 100%;
  position: relative;
}
.tl-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.tl-card-inner { padding: 20px; }

/* Impact sizing */
.tl-card--foundational .tl-card-inner { padding: 24px; }
.tl-card--foundational .tl-card-title { font-size: 20px; }
.tl-card--foundational .tl-card-desc { font-size: 15px; }

.tl-card--major .tl-card-inner { padding: 20px; }
.tl-card--major .tl-card-title { font-size: 18px; }

.tl-card--notable .tl-card-inner { padding: 14px 16px; }
.tl-card--notable .tl-card-title { font-size: 15px; }
.tl-card--notable .tl-card-desc { font-size: 13px; }

/* ── Card meta ── */
.tl-card-meta {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 10px; flex-wrap: wrap;
}
.tl-card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; font-weight: 600;
  letter-spacing: 0.8px; text-transform: uppercase;
  padding: 2px 8px; border-radius: 3px;
}
.tl-card-impact {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; font-weight: 600;
  letter-spacing: 0.8px; text-transform: uppercase;
  color: var(--accent-red);
  background: rgba(230,57,70,0.1);
  border: 1px solid rgba(230,57,70,0.2);
  padding: 2px 8px; border-radius: 3px;
}

/* ── Card content ── */
.tl-card-title {
  font-family: 'Space Grotesk', 'JetBrains Mono', sans-serif;
  font-size: 17px; font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3; margin-bottom: 8px;
}
.tl-card-desc {
  font-family: 'Crimson Pro', serif;
  font-size: 14px; line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.tl-card-source {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  display: inline-block;
}
.tl-card-source:hover { color: var(--accent-red); }
.tl-card-source--nolink { cursor: default; }
.tl-card-source--nolink:hover { color: var(--text-muted); }

/* ── EVENT card accent ── */
.tl-card--event { border-top: 2px solid transparent; }
.tl-card--event:hover { border-top-color: var(--accent-red); }
.tl-card--foundational .tl-card--event,
.tl-entry.tl-card--foundational .tl-card--event {
  border-top: 2px solid var(--accent-red);
}

/* ── VOICE card ── */
.tl-card--voice {
  border-left: 3px solid var(--accent-purple);
  background: rgba(124,92,191,0.04);
}
.tl-card--voice:hover {
  background: rgba(124,92,191,0.08);
  border-left-color: var(--accent-purple);
}

.tl-voice-quote { position: relative; margin-bottom: 12px; }
.tl-quote-mark {
  font-family: 'Crimson Pro', serif;
  font-size: 48px; font-weight: 700;
  color: var(--accent-purple);
  opacity: 0.3;
  position: absolute; top: -14px; left: -4px;
  line-height: 1;
}
.tl-quote-text {
  font-family: 'Crimson Pro', serif;
  font-size: 16px; font-style: italic;
  line-height: 1.55;
  color: var(--text-primary);
  padding-left: 20px;
  border: none; margin: 0;
}
.tl-card--foundational .tl-quote-text { font-size: 18px; }

.tl-voice-attribution {
  display: flex; flex-direction: column; gap: 2px;
  margin-bottom: 8px; padding-left: 20px;
}
.tl-voice-person {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px; font-weight: 600;
  color: var(--text-primary);
}
.tl-voice-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--text-muted);
}
.tl-voice-context {
  font-family: 'Crimson Pro', serif;
  font-size: 13px; color: var(--text-muted);
  line-height: 1.5; margin-bottom: 8px;
  padding-left: 20px;
  font-style: italic;
}
.tl-voice-related {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--accent-blue);
  padding-left: 20px;
}
.tl-related-icon { font-size: 12px; }

/* ── DATA card ── */
.tl-card--data {
  border-left: 3px solid #5cc8c8;
  background: rgba(80,200,200,0.03);
}
.tl-card--data:hover {
  background: rgba(80,200,200,0.06);
}
.tl-data-icon {
  font-size: 14px;
  filter: grayscale(0.3);
}
.tl-data-chart-placeholder {
  background: rgba(80,200,200,0.05);
  border: 1px dashed rgba(80,200,200,0.2);
  border-radius: 6px;
  padding: 14px;
  margin: 10px 0;
  text-align: center;
}
.tl-chart-icon {
  font-size: 24px; margin-bottom: 6px;
  filter: grayscale(0.3);
}
.tl-chart-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--text-muted);
  line-height: 1.5;
}

/* ═══════════════════════════════════════════
   MOBILE RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
  .tl-page-title { font-size: 28px; }
  .tl-page-subtitle { font-size: 16px; }

  /* Single column */
  .tl-track::before { left: 20px; }

  .tl-entry--left,
  .tl-entry--right {
    padding-left: 48px;
    padding-right: 0;
    justify-content: flex-start;
  }

  .tl-node {
    left: 20px;
    transform: translateX(-50%);
  }

  .tl-date-label {
    position: relative;
    top: auto; left: auto !important; right: auto !important;
    text-align: left !important;
    margin-bottom: 6px;
    display: block;
  }

  .tl-entry {
    flex-direction: column;
  }

  .tl-era-header { flex-direction: column; gap: 8px; }
  .tl-era-header-content { max-width: 100%; }
  .tl-era-line { display: none; }
  .tl-era-title { font-size: 18px; }

  /* Controls */
  .tl-controls { top: 48px; }
  .tl-controls-inner { flex-direction: column; align-items: stretch; }
  .tl-search-wrap { flex: 1 1 100%; }
  .tl-filters { justify-content: flex-start; }

  /* Era nav horizontal scroll */
  .tl-era-nav-inner { padding: 0 16px; }
  .tl-era-jump { padding: 6px 10px; }
  .tl-era-jump-label { font-size: 10px; }

  /* Sticky indicator */
  .tl-era-sticky { top: 140px; }
}

@media (max-width: 600px) {
  .tl-page { padding: 0 12px 60px; }
  .tl-page-header { padding: 32px 12px 20px; }
  .tl-page-title { font-size: 22px; }

  .tl-entry--left,
  .tl-entry--right {
    padding-left: 36px;
  }
  .tl-track::before { left: 14px; }
  .tl-node { left: 14px; width: 10px; height: 10px; }

  .tl-card-inner { padding: 14px; }
  .tl-card--foundational .tl-card-inner { padding: 16px; }
  .tl-card-title { font-size: 15px; }
  .tl-card--foundational .tl-card-title { font-size: 17px; }
  .tl-card-desc { font-size: 13px; }
  .tl-quote-text { font-size: 14px; }

  .tl-era-sticky { font-size: 11px; padding: 5px 14px; }
  .tl-controls { top: 44px; }
}