/* ===================================================================
   Float — cath-lab hemodynamic monitor aesthetic
   (sibling of the Tidal ventilator sim; light-pink accent)
   =================================================================== */
:root {
  --bg:        #0a0e14;
  --bg-panel:  #121822;
  --bg-panel2: #0d121b;
  --bg-scope:  #05070b;
  --border:    #232c3a;
  --border-lt: #2f3a4d;
  --text:      #c9d4e3;
  --text-dim:  #6f7e93;
  --text-bright:#eef3fa;

  /* light-pink brand accent */
  --accent:    #ff9ec7;
  --accent-dim:#d2779b;
  --on-accent: #2a0a16;   /* text on a pink fill */

  /* pressure-trace colors (clinical monitor convention) */
  --c-ra:   #45c8ff;   /* RA / CVP  – blue   */
  --c-rv:   #46d38a;   /* RV        – green  */
  --c-pa:   #ffce4a;   /* PA        – yellow */
  --c-pcwp: #b79bff;   /* PCWP      – violet */
  --c-ecg:  #59e08a;   /* ECG       – green  */

  --warn:   #ff9f1c;
  --crit:   #ff4d4d;
  --good:   #35d07f;

  --mono: "SF Mono", "JetBrains Mono", "Roboto Mono", ui-monospace, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ---------------- Header ---------------- */
#topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 10px 18px;
  background: linear-gradient(180deg, #1a1320, #0c121b);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.logo { color: var(--accent); font-size: 20px; line-height: 1; transform: translateY(2px); }
.brand-name { font-size: 19px; font-weight: 700; letter-spacing: .5px; color: var(--text-bright); }
.brand-sub { font-size: 11px; color: var(--text-dim); letter-spacing: .3px; white-space: nowrap; }
.topbar-status { display: flex; gap: 10px; margin-left: 6px; }
.status-chip {
  display: flex; flex-direction: column; padding: 4px 12px;
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 6px;
}
.status-chip label { font-size: 9px; color: var(--text-dim); letter-spacing: 1px; }
.status-chip span { font-size: 14px; font-weight: 600; color: var(--text-bright); font-family: var(--mono); white-space: nowrap; }

/* header link chip (LEARN ↔ simulator navigation) */
.chip-link { text-decoration: none; cursor: pointer; justify-content: center; transition: border-color .12s; }
.chip-link:hover { border-color: var(--accent-dim); }
.chip-link span { color: var(--accent); font-size: 13px; }

/* clickable CASE dropdown */
.case-select { position: relative; display: flex; }
.case-chip { flex: 1; cursor: pointer; user-select: none; }
.case-chip:hover { border-color: var(--accent-dim); }
.case-select.open .case-chip { border-color: var(--accent); }
.chip-row { display: flex; align-items: center; gap: 7px; }
#caseChipVal { display: inline-block; max-width: 210px; overflow: hidden; text-overflow: ellipsis; }
.chip-caret { font-size: 9px; color: var(--text-dim); transition: transform .12s; }
.case-select.open .chip-caret { transform: rotate(180deg); color: var(--accent); }
.case-menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 60;
  width: 290px; max-height: 72vh; overflow-y: auto;
  background: var(--bg-panel); border: 1px solid var(--border-lt);
  border-radius: 9px; padding: 6px; box-shadow: 0 14px 36px rgba(0,0,0,.5);
}
.case-menu[hidden] { display: none; }
.cm-group { font-size: 9px; letter-spacing: 1.1px; text-transform: uppercase; color: var(--text-dim); padding: 9px 8px 3px; }
.cm-item {
  display: flex; align-items: center; gap: 9px; width: 100%; text-align: left;
  background: transparent; border: none; color: var(--text);
  padding: 7px 8px; border-radius: 6px; cursor: pointer; font-size: 12.5px; font-family: var(--sans);
}
.cm-item:hover { background: var(--bg-panel2); color: var(--text-bright); }
.cm-item.active { background: var(--bg-panel2); color: var(--text-bright); box-shadow: inset 0 0 0 1px var(--accent-dim); }
.cm-dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; }
.cm-dot.baseline { background: var(--accent); }
.cm-dot.pulm-htn { background: #7fb6ff; }
.cm-dot.right-heart { background: #5fe0b0; }
.cm-dot.pericardial { background: #d79bff; }
.cm-dot.shock { background: #ffb259; }
.cm-dot.valve { background: #ff9ec7; }
.cm-name { flex: 1; }

.transport { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.t-btn {
  background: var(--bg-panel); color: var(--text); border: 1px solid var(--border-lt);
  padding: 7px 14px; border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: 600;
}
.t-btn:hover { border-color: var(--accent-dim); }
.t-btn.frozen { background: var(--warn); color: #1a1205; border-color: var(--warn); }
.t-btn.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.speed-wrap { display: flex; align-items: center; gap: 6px; }
.speed-wrap label { font-size: 11px; color: var(--text-dim); }
.speed-wrap select {
  background: var(--bg-panel2); color: var(--text); border: 1px solid var(--border-lt);
  border-radius: 5px; padding: 5px 7px; font-family: var(--mono); font-size: 12px;
}

/* ---------------- Layout ---------------- */
#layout {
  display: grid;
  grid-template-columns: 290px 1fr 250px;
  gap: 12px;
  padding: 12px;
  align-items: start;
}
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 13px;
  margin-bottom: 12px;
}
.panel-title {
  margin: 0 0 10px; font-size: 11px; font-weight: 700; letter-spacing: 1.2px;
  color: var(--accent); text-transform: uppercase;
}
.truth-tag {
  font-size: 8px; background: #3a1726; color: var(--accent); padding: 2px 5px;
  border-radius: 4px; letter-spacing: .5px; margin-left: 4px; vertical-align: middle;
}

/* ---------------- Catheter controls ---------------- */
.seg { display: flex; gap: 0; border: 1px solid var(--border-lt); border-radius: 6px; overflow: hidden; }
.seg button {
  flex: 1; background: var(--bg-panel2); color: var(--text-dim); border: none;
  padding: 8px 4px; cursor: pointer; font-size: 12px; font-weight: 700; font-family: var(--mono);
}
.seg button:hover { color: var(--text); }
.seg button.active { background: var(--accent); color: var(--on-accent); }
.seg.seg-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; }
.seg.seg-grid button { border-right: 1px solid var(--border-lt); }
.seg.seg-grid button:last-child { border-right: none; }
.seg.seg-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; }
.seg.seg-2 button { border-right: 1px solid var(--border-lt); }
.seg.seg-2 button:last-child { border-right: none; }

.cath-steppers { display: flex; gap: 8px; margin-top: 9px; }
.m-btn {
  flex: 1; background: var(--bg-panel2); border: 1px solid var(--border-lt); color: var(--text);
  padding: 9px 6px; border-radius: 6px; cursor: pointer; font-size: 11px; font-weight: 600;
}
.m-btn:hover { border-color: var(--accent-dim); }
.m-btn.armed, .m-btn.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.auto-btn { width: 100%; margin-top: 9px; }
.maneuver-hint { font-size: 10px; color: var(--text-dim); margin: 9px 0 0; }
.maneuver-hint b { color: var(--text); }

/* ---------------- Depth gauge ---------------- */
.depth-gauge { margin-top: 12px; }
.dg-labels { position: relative; height: 12px; margin-bottom: 3px; }
.dg-lbl { position: absolute; transform: translateX(-50%); font-size: 8.5px; font-family: var(--mono); color: var(--text-dim); }
.dg-track {
  position: relative; height: 12px; border-radius: 6px;
  background: var(--bg-panel2); border: 1px solid var(--border);
  overflow: hidden; cursor: ew-resize; touch-action: none;
}
.dg-zone { position: absolute; top: 0; bottom: 0; opacity: 0.5; }
.dg-marker { position: absolute; top: 0; bottom: 0; width: 3px; margin-left: -1.5px; background: var(--text-bright); box-shadow: 0 0 0 1px rgba(0,0,0,.55); }
.dg-status { margin-top: 7px; font-size: 11px; font-family: var(--mono); color: var(--text-dim); min-height: 14px; }
.dg-status.good { color: var(--good); }
.dg-status.warn { color: var(--warn); }
.dg-status.crit { color: var(--crit); }

/* ---------------- Heart schematic ---------------- */
.heart-wrap { display: flex; justify-content: center; }
#heartSvg { width: 100%; max-width: 250px; height: auto; }
.chamber { fill: var(--bg-panel2); stroke: var(--border-lt); stroke-width: 1.6; transition: fill .15s, stroke .15s; }
.vessel  { fill: none; stroke: var(--border-lt); stroke-width: 11; stroke-linecap: round; transition: stroke .15s; }
#ch-ra.active   { stroke: var(--c-ra);   fill: rgba(69,200,255,0.16); }
#ch-rv.active   { stroke: var(--c-rv);   fill: rgba(70,211,138,0.16); }
#ch-pa.active   { stroke: var(--c-pa); }
#ch-pcwp.active { stroke: var(--c-pcwp); fill: rgba(183,155,255,0.20); }
.ch-label { fill: var(--text-dim); font: 700 11px var(--mono); text-anchor: middle; pointer-events: none; }
.wedge-label { font-size: 8.5px; letter-spacing: .3px; }
.cath { fill: none; stroke: #3a4456; stroke-width: 2.2; stroke-linecap: round; stroke-dasharray: 1 5; }
.cath.on { stroke: var(--accent); stroke-width: 2.6; stroke-dasharray: none; }
.balloon { fill: rgba(255,158,199,0.45); stroke: var(--accent); stroke-width: 1; }
.tipdot { fill: var(--accent); }

/* ---------------- Patient controls (sliders) ---------------- */
.ctrl { margin-bottom: 11px; }
.ctrl-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.ctrl-label { font-size: 11px; color: var(--text-dim); letter-spacing: .3px; }
.ctrl-value { font-family: var(--mono); font-size: 14px; font-weight: 600; color: var(--text-bright); }
.ctrl-value small { font-size: 10px; color: var(--text-dim); font-weight: 400; margin-left: 2px; }
.ctrl input[type=range] {
  width: 100%; -webkit-appearance: none; appearance: none; height: 4px;
  background: var(--border-lt); border-radius: 3px; outline: none; margin: 4px 0 0;
}
.ctrl input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 15px; height: 15px; border-radius: 50%;
  background: var(--accent); cursor: pointer; border: 2px solid #0a0e14;
}
.ctrl input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; background: var(--accent); cursor: pointer; border: 2px solid #0a0e14;
}

/* ---------------- Banner / scope ---------------- */
#centercol { min-width: 0; }
.alarm-bar {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 14px; margin-bottom: 10px; font-family: var(--mono); font-size: 12px;
  color: var(--text-dim); letter-spacing: .3px;
}
.alarm-bar.warn { background: #2a1f08; border-color: var(--warn); color: var(--warn); }
.alarm-bar.crit { background: #2c0d0d; border-color: var(--crit); color: #ff8a8a; }

.scope {
  background: var(--bg-scope); border: 1px solid var(--border); border-radius: 10px;
  padding: 6px 8px 6px 0; overflow: hidden;
}
.scope.measuring { cursor: crosshair; }
.wave-row { display: flex; align-items: stretch; position: relative; }
.wave-row.ecg-row { height: 78px; }
.wave-row.press-row { height: 262px; }
.wave-row + .wave-row { border-top: 1px solid #11161f; }
.wave-label {
  width: 60px; flex: 0 0 60px; display: flex; flex-direction: column; justify-content: center;
  align-items: flex-end; padding-right: 8px; gap: 1px;
}
.wl-title { font-size: 14px; font-weight: 700; font-family: var(--mono); }
.wl-unit { font-size: 9px; color: #6f7e93; }
.wl-scale {
  font-size: 11px; font-weight: 700; font-family: var(--mono); color: #c9d4e3;
  border: 1px solid #2f3a4d; border-radius: 4px; padding: 0 4px; margin-top: 3px;
}
.wave-canvas { flex: 1; height: 100%; width: 100%; display: block; }

/* ---------------- Pullback composite ---------------- */
.loops {
  margin-top: 12px; background: var(--bg-scope); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 10px;
}
.loop-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.loop-head > span { font-size: 11px; letter-spacing: .8px; color: #8493a8; text-transform: uppercase; }
.loop-head .loop-sub { font-size: 10px; letter-spacing: .3px; color: #6f7e93; text-transform: none; }
.loop-canvas { width: 100%; height: 200px; display: block; }

/* ---------------- Monitors (pressures + derived) ---------------- */
.mon-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.mon {
  background: var(--bg-panel2); border: 1px solid var(--border); border-radius: 7px;
  padding: 7px 9px; min-width: 0;
}
.mon.full { grid-column: 1 / -1; }
.mon-label { font-size: 9px; color: var(--text-dim); letter-spacing: .6px; text-transform: uppercase; }
.mon-value { font-family: var(--mono); font-size: 19px; font-weight: 700; color: var(--text-bright); line-height: 1.15; }
.mon-value small { font-size: 10px; color: var(--text-dim); font-weight: 400; margin-left: 3px; }
.mon-value.warn { color: var(--warn); }
.mon-value.crit { color: var(--crit); }
.mon-value.good { color: var(--good); }
.mon-dot { display:inline-block; width:7px; height:7px; border-radius:50%; margin-right:5px; vertical-align: middle; }

/* ---------------- Teaching ---------------- */
.teaching { margin: 16px 12px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; }
.teaching-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.teaching-head h2 { margin: 0; font-size: 18px; color: var(--text-bright); }
.teach-cat { font-size: 10px; letter-spacing: 1px; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent-dim); padding: 2px 9px; border-radius: 10px; }
.teach-desc { font-size: 13px; color: var(--text); margin: 0 0 14px; max-width: 900px; }
.teach-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.teach-cols h3 { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-dim); margin: 0 0 7px; }
.teach-cols ul { margin: 0; padding-left: 18px; }
.teach-cols li { font-size: 12.5px; margin-bottom: 6px; color: var(--text); }
.teach-cols li b { color: var(--text-bright); }
.quiz-veil {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: #2d1422; border: 1px dashed var(--accent-dim); border-radius: 8px;
  padding: 14px 16px; font-size: 13px; color: var(--accent);
}
.quiz-veil[hidden] { display: none; }
.quiz-veil .m-btn { flex: 0 0 auto; }

/* ---------------- Footer ---------------- */
#footer { padding: 14px 18px 26px; color: var(--text-dim); font-size: 11px; text-align: center; }
#footer strong { color: var(--warn); }

/* ---------------- Responsive ---------------- */
@media (max-width: 1180px) {
  #layout { grid-template-columns: 280px 1fr; }
  #rightcol { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
  #rightcol .panel { margin-bottom: 0; }
}
@media (max-width: 1200px) { .brand-sub { display: none; } }
@media (max-width: 1000px) { #topbar { flex-wrap: wrap; row-gap: 8px; } }
@media (max-width: 760px) {
  #layout { grid-template-columns: 1fr; }
  #centercol { order: -1; }
  #rightcol { grid-template-columns: 1fr 1fr; }
  .teach-cols { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 460px) {
  #rightcol { grid-template-columns: 1fr; }
  .topbar-status { flex-wrap: wrap; }
}

/* =================================================================
   LIGHT THEME — chrome goes light; the scope stays dark
   ================================================================= */
:root[data-theme="light"] {
  --bg:        #f3eef1;
  --bg-panel:  #ffffff;
  --bg-panel2: #f7f2f5;
  --border:    #e6dde3;
  --border-lt: #d8cbd4;
  --text:      #2e2630;
  --text-dim:  #746974;
  --text-bright:#1a1119;
  --accent-dim:#c25c84;
  --on-accent: #2a0a16;
}
:root[data-theme="light"] body { -webkit-font-smoothing: auto; }
:root[data-theme="light"] #topbar {
  background: linear-gradient(180deg, #ffffff, #f6eef3);
  border-bottom-color: var(--border);
}
:root[data-theme="light"] .panel,
:root[data-theme="light"] .case-card,
:root[data-theme="light"] .status-chip,
:root[data-theme="light"] .teaching { box-shadow: 0 1px 2px rgba(41, 16, 31, .05); }
:root[data-theme="light"] .alarm-bar.warn { background: #fff3de; border-color: var(--warn); color: #8a5600; }
:root[data-theme="light"] .alarm-bar.crit { background: #ffe1e1; border-color: var(--crit); color: #b3261e; }
:root[data-theme="light"] .chamber { fill: #f7f2f5; }
:root[data-theme="light"] input[type=range] { background: #e0d4dc; }
:root[data-theme="light"] input[type=range]::-webkit-slider-thumb { border-color: #ffffff; }
:root[data-theme="light"] input[type=range]::-moz-range-thumb { border-color: #ffffff; }