/* ============================================================
   timeline.css — Gantt-like project timeline
   Matches dark/gold visual language from tokens.css
   ============================================================ */

/* ── Container ─────────────────────────────────────────────── */
.timeline-guide {
  margin: 20px auto 0;
  padding: 18px 22px;
  background: linear-gradient(135deg, rgba(200,168,78,0.08), rgba(255,255,255,0.025));
  border: 1px solid rgba(200,168,78,0.22);
  border-radius: var(--radius-lg);
}

.timeline-guide__header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.timeline-guide__icon {
  font-size: 1.25rem;
  line-height: 1;
  margin-top: 2px;
}

.timeline-guide h2 {
  font-size: 1rem;
  color: var(--white);
  margin: 0 0 4px;
}

.timeline-guide p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.timeline-guide__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.timeline-guide__item {
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.timeline-guide__item strong {
  display: block;
  color: var(--gold-light);
  font-size: 0.78rem;
  margin-bottom: 5px;
}

.timeline-guide__item span {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.timeline-section {
  background: var(--navy-light);
  border-bottom: 1px solid var(--glass-border);
  padding: 20px 0 0;
  position: relative;
}

.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 24px 14px;
  flex-wrap: wrap;
}

.timeline-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-title-icon {
  font-size: 15px;
}

.timeline-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.timeline-reset-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.timeline-reset-btn:hover {
  background: var(--glass-hover);
  color: var(--text);
  border-color: var(--gold);
}

/* ── Scroll wrapper ─────────────────────────────────────────── */
.timeline-scroll {
  overflow-x: auto;
  overflow-y: visible;
  padding: 0 24px 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}

.timeline-scroll::-webkit-scrollbar {
  height: 4px;
}
.timeline-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 2px;
}

/* ── Track ──────────────────────────────────────────────────── */
.timeline-track {
  display: flex;
  align-items: stretch;
  gap: 3px;
  width: 100%;
  min-width: 760px;
  position: relative;
}

/* ── Individual block ───────────────────────────────────────── */
.timeline-block {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  flex-grow: 0;
  flex-shrink: 0;
  min-width: 92px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 10px 10px 8px;
  cursor: pointer;
  position: relative;
  transition: filter var(--transition), transform var(--transition);
  border: 1px solid transparent;
  border-bottom: none;
  background: var(--glass);
  overflow: hidden;
  user-select: none;
}

.timeline-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--block-color, var(--gold));
  opacity: 0.12;
  transition: opacity var(--transition);
}

.timeline-block:hover::before {
  opacity: 0.2;
}

.timeline-block.tl-active {
  border-color: var(--block-color, var(--gold));
  box-shadow: 0 0 0 1px var(--block-color, var(--gold)), 0 4px 20px rgba(0,0,0,0.3);
}

.timeline-block.tl-active::before {
  opacity: 0.22;
}

.timeline-block:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ── Block inner content ────────────────────────────────────── */
.tl-block-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--block-color, var(--gold));
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
  position: relative;
}

.tl-block-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  position: relative;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.tl-block-days {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 5px;
  position: relative;
  white-space: nowrap;
}

.tl-block-days strong {
  color: var(--white);
  font-weight: 700;
}

.tl-block-level {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--block-color, var(--gold));
  color: var(--navy);
  margin-top: 5px;
  position: relative;
}

.tl-block-provisional {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 9px;
  color: var(--text-dim);
  font-style: italic;
}

/* ── Connector arrow between blocks ────────────────────────── */
.timeline-connector {
  display: flex;
  align-items: center;
  padding-bottom: 8px;
  color: var(--text-dim);
  font-size: 12px;
  flex-shrink: 0;
  width: 12px;
  justify-content: center;
}

/* ── Summary bar ────────────────────────────────────────────── */
.timeline-summary {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 24px 12px;
  border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
  background: rgba(0,0,0,0.15);
}

.tl-summary-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.tl-summary-label {
  font-size: 11px;
  color: var(--text-dim);
}

.tl-summary-value {
  font-weight: 700;
  color: var(--white);
  font-size: 13px;
}

.tl-summary-value.tl-gold {
  color: var(--gold-light);
}

.tl-summary-sep {
  color: var(--glass-border);
  font-size: 16px;
}

.tl-summary-breakdown {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tl-cost-chip {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.tl-cost-chip--labor {
  background: rgba(59,130,246,0.15);
  color: #93C5FD;
}

.tl-cost-chip--tools {
  background: rgba(168,85,247,0.15);
  color: #D8B4FE;
}

.tl-cost-chip--hosting {
  background: rgba(20,184,166,0.15);
  color: #5EEAD4;
}

/* ── Loading / error state ──────────────────────────────────── */
.timeline-loading {
  padding: 16px 24px;
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-error {
  padding: 12px 24px;
  color: var(--red);
  font-size: 12px;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .timeline-header {
    padding: 0 16px 12px;
  }
  .timeline-scroll {
    padding: 0 16px 14px;
  }
  .timeline-summary {
    padding: 10px 16px 12px;
    gap: 12px;
  }
  .tl-block-label {
    font-size: 10px;
  }
}