:root {
  --bg: #0f0f14;
  --surface: #1a1a24;
  --surface2: #22222f;
  --border: #2e2e42;
  --accent: #7c6af7;
  --accent2: #5b4fcf;
  --accent-glow: rgba(124, 106, 247, 0.25);
  --text: #e8e8f0;
  --text-muted: #8888aa;
  --major: #f7a86a;
  --minor: #6ab4f7;
  --success: #6af7b0;
  --radius: 12px;
}

/* ── Light theme overrides ── */
body.light {
  --bg: #f4f4f8;
  --surface: #ffffff;
  --surface2: #eeeef4;
  --border: #d0d0e0;
  --accent: #6356d6;
  --accent2: #4e43b8;
  --accent-glow: rgba(99, 86, 214, 0.18);
  --text: #1c1c2e;
  --text-muted: #5c5c80;
  --major: #c2660a;
  --minor: #1a72b8;
  --success: #0e8a52;
}

body.light header {
  background: linear-gradient(180deg, rgba(99,86,214,0.07) 0%, transparent 100%);
}

body.light .form-card,
body.light .event-inner,
body.light .skeleton-card,
body.light .modal {
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Header ── */
header {
  text-align: center;
  padding: 3rem 1rem 2rem;
  background: linear-gradient(180deg, rgba(124,106,247,0.08) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  background: linear-gradient(135deg, #c4bcff, #7c6af7, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ── Form ── */
.form-section {
  max-width: 680px;
  margin: 2.5rem auto;
  padding: 0 1rem;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.api-key-row {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

input[type="number"], input[type="text"] {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  padding: 0.65rem 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  width: 100%;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder { color: var(--text-muted); }

.hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

.btn-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex: 1;
  padding: 0.85rem 1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn:hover:not(:disabled) {
  background: var(--accent2);
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn svg { flex-shrink: 0; }

.btn-build {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex: 1;
  padding: 0.85rem 1rem;
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.btn-build:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-build svg { flex-shrink: 0; }

.btn-load {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex: 0 0 auto;
  padding: 0.85rem 1.1rem;
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--text-muted);
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.btn-load:hover {
  border-color: var(--text);
  color: var(--text);
  transform: translateY(-1px);
}

.btn-load svg { flex-shrink: 0; }

/* ── Status / Loading ── */
.status-bar {
  max-width: 680px;
  margin: 0 auto 1rem;
  padding: 0 1rem;
}

.status-msg {
  display: none;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.status-msg.show { display: flex; }

.status-msg.loading {
  background: rgba(124, 106, 247, 0.1);
  border: 1px solid rgba(124, 106, 247, 0.3);
  color: #a78bfa;
}

.status-msg.error {
  background: rgba(247, 90, 90, 0.1);
  border: 1px solid rgba(247, 90, 90, 0.3);
  color: #f87171;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(167, 139, 250, 0.3);
  border-top-color: #a78bfa;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* ── Timeline ── */
#timeline-output {
  max-width: 820px;
  margin: 0 auto 4rem;
  padding: 0 1rem;
  display: none;
}

#timeline-output.show { display: block; }

.timeline-header {
  margin-bottom: 2.5rem;
}

.timeline-header h2 {
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.timeline-header p {
  color: var(--text-muted);
  font-size: 0.97rem;
  max-width: 640px;
}

.timeline-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-theme {
  background: rgba(124, 106, 247, 0.15);
  border: 1px solid rgba(124, 106, 247, 0.3);
  color: #a78bfa;
}

.badge-period {
  background: rgba(106, 247, 176, 0.1);
  border: 1px solid rgba(106, 247, 176, 0.25);
  color: var(--success);
}

/* ── Legend ── */
.legend {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

/* ── Timeline track ── */
.timeline-track {
  position: relative;
  padding-left: 2.5rem;
}

.timeline-track::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--border) 100%);
  border-radius: 2px;
}

/* ── Event card ── */
.event-card {
  position: relative;
  margin-bottom: 1.75rem;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.event-card.visible {
  opacity: 1;
  transform: translateX(0);
}

.event-dot {
  position: absolute;
  left: -1.85rem;
  top: 0.9rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--bg);
  z-index: 1;
}

.event-card.major .event-dot {
  background: var(--major);
  box-shadow: 0 0 10px rgba(247, 168, 106, 0.5);
}

.event-card.minor .event-dot {
  background: var(--minor);
  box-shadow: 0 0 8px rgba(106, 180, 247, 0.35);
}

.event-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.event-inner:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(124, 106, 247, 0.12);
}

.event-card.major .event-inner { border-left: 3px solid var(--major); }
.event-card.minor .event-inner { border-left: 3px solid var(--minor); }

.event-year {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.event-card.major .event-year { color: var(--major); }
.event-card.minor .event-year { color: var(--minor); }

.event-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.event-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.sig-pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.event-card.major .sig-pill {
  background: rgba(247, 168, 106, 0.12);
  color: var(--major);
}

.event-card.minor .sig-pill {
  background: rgba(106, 180, 247, 0.1);
  color: var(--minor);
}

/* ── Skeleton loading ── */
.skeleton-track {
  padding-left: 2.5rem;
  position: relative;
}

.skeleton-track::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.skeleton-item {
  position: relative;
  margin-bottom: 1.75rem;
}

.skeleton-dot {
  position: absolute;
  left: -1.85rem;
  top: 0.9rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--border);
  animation: pulse 1.4s ease-in-out infinite;
}

.skeleton-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
}

.skeleton-line {
  height: 10px;
  border-radius: 5px;
  background: var(--border);
  margin-bottom: 0.6rem;
  animation: pulse 1.4s ease-in-out infinite;
}

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

/* ── Create Timeline button ── */
.btn-create {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

.btn-create:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}

/* ── Add Event bar ── */
.add-event-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.add-event-bar.show { display: flex; }

.add-event-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Layout toggle (vertical / horizontal) ── */
.layout-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.3rem 0.7rem;
}

/* ── Horizontal timeline layout ── */
.timeline-track.horizontal {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  overflow-y: visible;
  padding: 0 1rem;
  align-items: stretch;
  min-height: 420px;
  scroll-behavior: smooth;
}

/* Line runs through the vertical centre */
.timeline-track.horizontal::before {
  top: 50%;
  transform: translateY(-50%);
  left: 0;
  right: 0;
  bottom: auto;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--border) 100%);
}

.timeline-track.horizontal .event-card {
  flex: 0 0 210px;
  margin-bottom: 0;
  padding: 0 0.5rem;
  opacity: 0;
}

/* Odd cards drop in from above, even from below */
.timeline-track.horizontal .event-card:nth-child(odd)  { transform: translateY(-15px); }
.timeline-track.horizontal .event-card:nth-child(even) { transform: translateY(15px);  }
.timeline-track.horizontal .event-card.visible         { opacity: 1; transform: translateY(0); }

/* Dot sits on the centre line */
.timeline-track.horizontal .event-dot {
  left: calc(50% - 7px);
  top: calc(50% - 7px);
}

/* Connecting stem */
.timeline-track.horizontal .event-card::after {
  content: '';
  position: absolute;
  left: calc(50% - 1px);
  width: 2px;
  height: 1rem;
  background: var(--border);
}
/* Even: stem goes DOWN from the dot */
.timeline-track.horizontal .event-card:nth-child(even)::after { top: calc(50% + 7px); }
/* Odd: stem goes UP from the dot */
.timeline-track.horizontal .event-card:nth-child(odd)::after  { bottom: calc(50% + 7px); top: auto; }

/* Card content — absolutely positioned within the card */
.timeline-track.horizontal .event-inner {
  position: absolute;
  left: 0.5rem;
  right: 0.5rem;
  border-left: none;
}

/* Even cards sit BELOW the line — top-border accent */
.timeline-track.horizontal .event-card:nth-child(even) .event-inner {
  top: calc(50% + 1.5rem);
  border-top: 3px solid transparent;
}
.timeline-track.horizontal .event-card.major:nth-child(even) .event-inner  { border-top-color: var(--major);   }
.timeline-track.horizontal .event-card.minor:nth-child(even) .event-inner  { border-top-color: var(--minor);   }
.timeline-track.horizontal .event-card.custom:nth-child(even) .event-inner { border-top-color: var(--success); }

/* Odd cards sit ABOVE the line — bottom-border accent */
.timeline-track.horizontal .event-card:nth-child(odd) .event-inner {
  bottom: calc(50% + 1.5rem);
  border-bottom: 3px solid transparent;
}
.timeline-track.horizontal .event-card.major:nth-child(odd) .event-inner  { border-bottom-color: var(--major);   }
.timeline-track.horizontal .event-card.minor:nth-child(odd) .event-inner  { border-bottom-color: var(--minor);   }
.timeline-track.horizontal .event-card.custom:nth-child(odd) .event-inner { border-bottom-color: var(--success); }

.btn-add-event {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: transparent;
  border: 1.5px dashed var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}

.btn-add-event:hover {
  background: var(--accent-glow);
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-save-timeline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-save-timeline:hover {
  border-color: var(--success);
  color: var(--success);
  background: rgba(106, 247, 176, 0.08);
  box-shadow: 0 2px 12px rgba(106, 247, 176, 0.15);
}

.btn-print-timeline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn-print-timeline:hover {
  border-color: var(--text-muted);
  color: var(--text);
  background: var(--surface2);
}

/* ── Empty state ── */
.empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 3rem 1rem;
  color: var(--text-muted);
  text-align: center;
}

.empty-state.show { display: flex; }
.empty-state strong { color: var(--text); }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 480px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem 0;
  margin-bottom: 1.25rem;
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 0.15s;
  display: flex;
}

.modal-close:hover { color: var(--text); }

.modal-field {
  padding: 0 1.5rem;
  margin-bottom: 1.1rem;
}

textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  padding: 0.65rem 0.9rem;
  width: 100%;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  line-height: 1.55;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea::placeholder { color: var(--text-muted); }

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
}

.btn-cancel {
  padding: 0.6rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.btn-cancel:hover { border-color: var(--text-muted); color: var(--text); }

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.2rem;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}

.btn-submit:hover {
  background: var(--accent2);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* ── Resize handle on custom cards ── */
.resize-handle {
  position: absolute;
  bottom: 5px;
  right: 5px;
  width: 18px;
  height: 18px;
  cursor: se-resize;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
}

.event-inner:hover .resize-handle { opacity: 1; }
.event-inner.resizing .resize-handle { opacity: 1; color: var(--accent); }

/* ── Edit button on custom cards ── */
.btn-edit-event {
  margin-top: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.btn-edit-event:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ── Manual event card (no year/significance) ── */
.event-card.custom .event-dot {
  background: var(--success);
  box-shadow: 0 0 8px rgba(106, 247, 176, 0.4);
}

.event-card.custom .event-inner {
  border-left: 3px solid var(--success);
}

/* ── Theme switcher ── */
.theme-switcher {
  position: fixed;
  top: 1.1rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
}

.theme-switcher-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  display: none;
}

.theme-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.3rem 0.7rem;
}

.toggle-side {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.25s;
  user-select: none;
}

.toggle-side.active { color: var(--accent); }

/* Range slider reset + custom style */
.theme-range {
  -webkit-appearance: none;
  appearance: none;
  width: 44px;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  cursor: pointer;
  transition: background 0.25s;
}

.theme-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  cursor: pointer;
  transition: background 0.25s, box-shadow 0.25s;
}

.theme-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  cursor: pointer;
  transition: background 0.25s;
}

/* ── Responsive ── */
@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 1.25rem; }
}

/* ── Print ── */
@media print {
  /* Hide UI chrome */
  .theme-switcher,
  header,
  .form-section,
  .status-bar,
  .modal-overlay { display: none !important; }
  #timeline-output { display: block !important; }
  .timeline-header *:not(#timelineTitle) { display: none !important; }
  .timeline-header { margin-bottom: 1.5rem; }
  .legend,
  .add-event-bar,
  .empty-state,
  .btn-edit-event,
  .resize-handle,
  .sig-pill { display: none !important; }

  /* Colours */
  body { background: #fff !important; color: #000 !important; }
  #timelineTitle { color: #000 !important; font-size: 1.4rem; -webkit-text-fill-color: #000 !important; }

  /* All cards: force visible regardless of animation state */
  .event-card {
    opacity: 1 !important;
    transform: none !important;
  }
  .event-dot { display: none !important; }
  .event-inner {
    background: #fff !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
    padding: 0.6rem 0.8rem !important;
  }
  .event-year  { color: #555 !important; }
  .event-title { color: #000 !important; }
  .event-desc  { color: #333 !important; }

  /* ── Vertical layout ── */
  .timeline-track:not(.horizontal) {
    overflow: visible !important;
    padding: 0 !important;
  }
  /* Hide the vertical connecting line — border-left on each card serves instead */
  .timeline-track:not(.horizontal)::before { display: none !important; }
  .timeline-track:not(.horizontal) .event-card {
    break-inside: avoid;
    margin-bottom: 1rem;
    padding-left: 1.25rem;
    border-left: 3px solid #999;
  }
  .timeline-track:not(.horizontal) .event-card.major  { border-left-color: #c2660a; }
  .timeline-track:not(.horizontal) .event-card.minor  { border-left-color: #1a72b8; }
  .timeline-track:not(.horizontal) .event-card.custom { border-left-color: #0e8a52; }
  .timeline-track:not(.horizontal) .event-inner       { border-left: none !important; }

  /* ── Horizontal layout: preserve the screen layout ── */
  /* Only fix overflow and colours — keep flex, absolute positioning, and the centre line intact */
  .timeline-track.horizontal {
    overflow: visible !important;
  }
  /* Render the centre line in a print-safe grey */
  .timeline-track.horizontal::before {
    background: #aaa !important;
  }
  /* Connecting stems: keep visible, use print-safe grey */
  .timeline-track.horizontal .event-card::after { background: #aaa !important; }
  /* Restore card accent borders (screen CSS removes border-left on horizontal inners) */
  .timeline-track.horizontal .event-inner              { border: 1px solid #ccc !important; }
  .timeline-track.horizontal .event-card.major  .event-inner { border-left: 3px solid #c2660a !important; }
  .timeline-track.horizontal .event-card.minor  .event-inner { border-left: 3px solid #1a72b8 !important; }
  .timeline-track.horizontal .event-card.custom .event-inner { border-left: 3px solid #0e8a52 !important; }
}