/* =====================================================
   PREGNANCY CLINICAL TIMELINE - Multi-Lane Layout
   Aesthetic: Clinical atlas / wall chart with parallel
   color-coded vertical lanes, one per domain
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&family=IBM+Plex+Mono:wght@300;400;500&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --paper:   #f5f0e8;
  --paper2:  #ede8dc;
  --ink:     #1a1710;
  --ink2:    #4a4535;
  --ink3:    #8a7f68;
  --rule:    rgba(26,23,16,0.10);
  --rule-hv: rgba(26,23,16,0.22);

  --labs:    #1a6fa8;
  --appt:    #2e7d46;
  --infect:  #c0392b;
  --fetal:   #7b3fa0;
  --tx:      #c97d10;
  --screen:  #1a7a7a;

  --labs-bg:    rgba(26,111,168,0.08);
  --appt-bg:    rgba(46,125,70,0.08);
  --infect-bg:  rgba(192,57,43,0.08);
  --fetal-bg:   rgba(123,63,160,0.08);
  --tx-bg:      rgba(201,125,16,0.08);
  --screen-bg:  rgba(26,122,122,0.08);

  --t1-band: rgba(167,139,250,0.045);
  --t2-band: rgba(52,211,153,0.045);
  --t3-band: rgba(96,165,250,0.045);
  --tm-band: rgba(248,113,113,0.05);

  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-sans:  'IBM Plex Sans', system-ui, sans-serif;
  --font-mono:  'IBM Plex Mono', 'Courier New', monospace;

  --row-h: 80px;
  --axis-w: 52px;
  --lane-w: 180px;
  --lane-gap: 2px;
  --header-h: 48px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  overflow-x: auto;
}

/* ========== HEADER ========== */
.site-header {
  background: var(--paper2);
  border-bottom: 2px solid var(--rule-hv);
  padding: 28px 32px 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  position: relative;
  z-index: 100;
}

.header-inner { flex: 1; min-width: 0; }

.site-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.1;
}

.site-sub {
  margin-top: 6px;
  font-size: 12px;
  color: var(--ink2);
  font-style: italic;
  font-family: var(--font-serif);
}

.legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
}

.leg-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink2);
  cursor: pointer;
  transition: opacity 0.2s;
  user-select: none;
}

.leg-item:hover { opacity: 0.7; }
.leg-item.dimmed { opacity: 0.25; }

.leg-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.header-ref {
  flex-shrink: 0;
  width: 200px;
  font-size: 10px;
}

.ref-title {
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink3);
  margin-bottom: 6px;
  font-weight: 500;
}

.qref {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 2px 0;
  border-bottom: 1px dotted var(--rule);
  gap: 6px;
}
.qref:last-child { border-bottom: none; }
.qref span { font-size: 9px; color: var(--ink3); font-family: var(--font-mono); }
.qref b { font-size: 9px; font-weight: 600; color: var(--ink); font-family: var(--font-mono); text-align: right; }

/* ========== CHART WRAPPER ========== */
.chart-wrap {
  position: relative;
  display: grid;
  grid-template-columns: var(--axis-w) 1fr;
  grid-template-rows: var(--header-h) 1fr;
  min-width: fit-content;
}

/* ========== WEEK AXIS ========== */
.week-axis {
  grid-column: 1;
  grid-row: 2;
  width: var(--axis-w);
  position: relative;
  z-index: 20;
  background: var(--paper2);
  border-right: 1px solid var(--rule-hv);
}

.wk-tick {
  position: absolute;
  left: 0;
  right: 0;
  height: var(--row-h);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink3);
  font-weight: 400;
}

.wk-tick.era-start {
  font-weight: 600;
  color: var(--ink2);
}

.wk-tick .era-tag {
  position: absolute;
  left: 4px;
  top: 18px;
  font-size: 7px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink3);
  writing-mode: vertical-lr;
  text-orientation: mixed;
  white-space: nowrap;
}

/* ========== ERA BANDS ========== */
.era-bands {
  grid-column: 2;
  grid-row: 2;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  pointer-events: none;
  z-index: 0;
}

.era-band {
  position: absolute;
  left: 0;
  right: 0;
}

.era-band.t1   { background: var(--t1-band); }
.era-band.t2   { background: var(--t2-band); }
.era-band.t3   { background: var(--t3-band); }
.era-band.term { background: var(--tm-band); }

.era-label-overlay {
  position: absolute;
  right: 8px;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(26,23,16,0.12);
  font-weight: 600;
  writing-mode: vertical-lr;
  text-orientation: mixed;
  z-index: 1;
}

/* ========== LANE HEADERS ========== */
.lane-headers {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  gap: var(--lane-gap);
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper2);
  border-bottom: 2px solid var(--rule-hv);
  padding-left: 0;
}

.lane-hdr {
  width: var(--lane-w);
  flex-shrink: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 8.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: #fff;
  text-align: center;
  padding: 0 6px;
}

/* ========== LANES ========== */
.lanes {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  gap: var(--lane-gap);
  position: relative;
  z-index: 10;
}

.lane {
  width: var(--lane-w);
  flex-shrink: 0;
  position: relative;
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}

/* Week gridlines */
.week-gridline {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid var(--rule);
  z-index: 0;
  pointer-events: none;
}

/* ========== EVENT BLOCKS ========== */
.evt {
  position: absolute;
  left: 6px;
  right: 6px;
  border-radius: 4px;
  padding: 6px 8px;
  cursor: pointer;
  z-index: 5;
  transition: transform 0.12s, box-shadow 0.12s;
  overflow: hidden;
  border-left: 3px solid transparent;
}

.evt:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  z-index: 15;
}

.evt .evt-wk {
  font-family: var(--font-mono);
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.7;
  margin-bottom: 2px;
}

.evt .evt-title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 3px;
}

.evt .evt-preview {
  font-size: 9.5px;
  line-height: 1.35;
  opacity: 0.75;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Lane-specific colors */
.lane[data-type="labs"]    { background: var(--labs-bg); }
.lane[data-type="appt"]    { background: var(--appt-bg); }
.lane[data-type="infect"]  { background: var(--infect-bg); }
.lane[data-type="fetal"]   { background: var(--fetal-bg); }
.lane[data-type="tx"]      { background: var(--tx-bg); }
.lane[data-type="screen"]  { background: var(--screen-bg); }

.lane[data-type="labs"] .evt    { background: rgba(26,111,168,0.13); border-left-color: var(--labs); color: #0d3a5c; }
.lane[data-type="appt"] .evt    { background: rgba(46,125,70,0.13); border-left-color: var(--appt); color: #1a4a28; }
.lane[data-type="infect"] .evt  { background: rgba(192,57,43,0.13); border-left-color: var(--infect); color: #6b1f15; }
.lane[data-type="fetal"] .evt   { background: rgba(123,63,160,0.13); border-left-color: var(--fetal); color: #3d1f52; }
.lane[data-type="tx"] .evt      { background: rgba(201,125,16,0.13); border-left-color: var(--tx); color: #5c3800; }
.lane[data-type="screen"] .evt  { background: rgba(26,122,122,0.13); border-left-color: var(--screen); color: #0d3e3e; }

.lane[data-type="labs"] .evt:hover    { background: rgba(26,111,168,0.22); }
.lane[data-type="appt"] .evt:hover    { background: rgba(46,125,70,0.22); }
.lane[data-type="infect"] .evt:hover  { background: rgba(192,57,43,0.22); }
.lane[data-type="fetal"] .evt:hover   { background: rgba(123,63,160,0.22); }
.lane[data-type="tx"] .evt:hover      { background: rgba(201,125,16,0.22); }
.lane[data-type="screen"] .evt:hover  { background: rgba(26,122,122,0.22); }

.lane.filtered-out { opacity: 0.08; pointer-events: none; }

/* ========== POSTPARTUM ========== */
.pp-section {
  padding: 32px;
  border-top: 3px solid var(--rule-hv);
}

.pp-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--ink);
}

.pp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.pp-card {
  border-radius: 5px;
  padding: 12px 14px;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  border-left: 3px solid transparent;
}

.pp-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.pp-card .evt-tag {
  font-family: var(--font-mono);
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
}

.pp-card .evt-title {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 4px;
}

.pp-card .evt-preview {
  font-size: 10px;
  line-height: 1.4;
  opacity: 0.7;
}

.pp-card[data-type="labs"]    { background: rgba(26,111,168,0.1); border-left-color: var(--labs); color: #0d3a5c; }
.pp-card[data-type="appt"]    { background: rgba(46,125,70,0.1); border-left-color: var(--appt); color: #1a4a28; }
.pp-card[data-type="infect"]  { background: rgba(192,57,43,0.1); border-left-color: var(--infect); color: #6b1f15; }
.pp-card[data-type="fetal"]   { background: rgba(123,63,160,0.1); border-left-color: var(--fetal); color: #3d1f52; }
.pp-card[data-type="tx"]      { background: rgba(201,125,16,0.1); border-left-color: var(--tx); color: #5c3800; }
.pp-card[data-type="screen"]  { background: rgba(26,122,122,0.1); border-left-color: var(--screen); color: #0d3e3e; }

/* ========== FOOTER ========== */
.site-footer {
  padding: 20px 32px;
  border-top: 1px solid var(--rule);
  text-align: center;
  font-size: 10px;
  color: var(--ink3);
  font-family: var(--font-mono);
}

/* ========== MODAL ========== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,23,16,0.55);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  backdrop-filter: blur(3px);
}

.overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: #fff;
  border-radius: 6px;
  max-width: 560px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 32px 36px;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  scrollbar-width: thin;
}

.modal-x {
  position: absolute;
  top: 16px; right: 16px;
  background: none; border: none;
  font-size: 18px; cursor: pointer;
  color: var(--ink3); line-height: 1;
  padding: 4px 8px;
}
.modal-x:hover { color: var(--ink); }

.modal-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 4px;
  font-weight: 500;
}

.modal-wk {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink3);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule-hv);
}

.modal-body { font-size: 13px; color: var(--ink2); line-height: 1.7; }
.modal-body strong { color: var(--ink); }
.modal-body ul { list-style: none; padding: 0; margin: 10px 0; display: flex; flex-direction: column; gap: 6px; }
.modal-body ul li { padding-left: 16px; position: relative; line-height: 1.5; }
.modal-body ul li::before { content: '\00B7'; position: absolute; left: 0; color: var(--ink3); font-weight: 700; }
.modal-body p { margin-bottom: 10px; }
.modal-body p:last-child { margin-bottom: 0; }

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--paper2); }
::-webkit-scrollbar-thumb { background: rgba(26,23,16,0.2); border-radius: 3px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
  .header-ref { display: none; }
  :root { --lane-w: 150px; }
}

@media (max-width: 640px) {
  :root { --lane-w: 120px; --row-h: 70px; --axis-w: 40px; }
  .site-header { padding: 16px; flex-direction: column; }
  .evt .evt-preview { -webkit-line-clamp: 2; }
}