/* Simulator-specific refinements layered on top of ../styles.css */
.container{
  max-width:1080px;
}

details textarea{
  min-height:160px;
}

#previewSim{
  max-height:320px;
}

.chart-grid{
  margin-top:16px;
  display:grid;
  gap:16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.chart-wrap{
  border:1px solid var(--chart-card-border);
  border-radius:12px;
  background:var(--chart-card-bg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}

.chart-wrap header{
  padding:10px 14px;
  font-weight:600;
  color:var(--chart-header);
  border-bottom:1px solid var(--chart-card-border);
}

.chart-wrap canvas{
  display:block;
  width:100%;
  height:220px;
}

.chart-legend{
  padding:12px 14px;
  border-top:1px solid var(--chart-card-border);
  font-size:11.5px;
  color:var(--chart-legend);
  display:grid;
  gap:6px;
}
.chart-legend .legend-group{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}
.chart-legend .legend-heading{
  font-weight:600;
  color:var(--chart-legend-heading);
}
.chart-legend .legend-title{
  font-weight:600;
  color:var(--chart-header);
}
.chart-legend .legend-item{
  white-space:nowrap;
}
.chart-legend .legend-empty{
  font-style:italic;
  color:var(--chart-legend-heading);
}

.legend-empty{
  font-style:italic;
  color:var(--chart-legend-heading);
}

.month-spread-card{
  margin-top:18px;
  border:1px solid var(--chart-card-border);
  border-radius:12px;
  background:var(--chart-card-bg);
  padding:16px;
  position:relative; /* for axis label alignment */
}
.month-spread-card h3{
  margin:0 0 12px;
  font-size:16px;
  color:var(--chart-header);
}
.calendar-heatmap,
.calendar-heatmap--empty{
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:11px;
  color:var(--chart-legend);
  overflow-x:hidden;
  padding-bottom:8px;
}
.calendar-heatmap--empty{ gap:0; }
:root{
  --calendar-heatmap-empty: rgba(120, 142, 176, 0.18);
  --calendar-heatmap-border: rgba(150, 170, 204, 0.35);
  --calendar-heatmap-active: rgba(250, 255, 173, 0.6);
}
[data-theme="light"]{
  --calendar-heatmap-empty: rgba(48, 63, 84, 0.1);
  --calendar-heatmap-border: rgba(68, 88, 112, 0.25);
  --calendar-heatmap-active: rgba(56, 102, 65, 0.22);
}
.calendar-heatmap__row{
  display:grid;
  gap:var(--calendar-heatmap-cell-gap, 3px);
  grid-template-columns:
    minmax(var(--calendar-heatmap-month-width, 96px), var(--calendar-heatmap-month-width, 96px))
    repeat(var(--calendar-heatmap-day-count, 31), minmax(var(--calendar-heatmap-cell-size, 24px), var(--calendar-heatmap-cell-size, 24px)));
  align-items:stretch;
  grid-auto-rows: var(--calendar-heatmap-cell-height, 26px);
}
.calendar-heatmap__row--header{
  position:sticky;
  top:0;
  background:var(--chart-card-bg);
  z-index:1;
  padding-bottom:4px;
}
.calendar-heatmap__month-header{
  font-weight:600;
  color:var(--chart-legend-heading);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:4px 6px;
  min-width:var(--calendar-heatmap-month-width, 96px);
  height:var(--calendar-heatmap-cell-height, 26px);
}
.calendar-heatmap__day-label{
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:clamp(8px, 0.55vw, 10px);
  color:var(--chart-legend-heading);
  padding:0;
  white-space:nowrap;
  width:var(--calendar-heatmap-cell-size, 24px);
  height:var(--calendar-heatmap-cell-height, 26px);
}
.calendar-heatmap__month{
  display:flex;
  flex-direction:row;
  align-items:center;
  justify-content:space-between;
  gap:6px;
  padding:4px 8px;
  border:1px solid var(--calendar-heatmap-border);
  border-radius:8px;
  background:var(--surface-alt);
  color:var(--chart-header);
  cursor:pointer;
  transition:background 0.15s ease, transform 0.1s ease, border-color 0.15s ease;
  font:inherit;
  min-width:var(--calendar-heatmap-month-width, 96px);
  height:var(--calendar-heatmap-cell-height, 26px);
}
.calendar-heatmap__month:hover,
.calendar-heatmap__month:focus{
  background:var(--surface);
  transform:translateY(-1px);
}
.calendar-heatmap__month:focus{ outline:2px solid var(--accent); outline-offset:2px; }
.calendar-heatmap__month-label{ font-weight:700; }
.calendar-heatmap__month-label{ font-weight:700; white-space:nowrap; }
.calendar-heatmap__month-average{
  font-size:0.72rem;
  color:var(--chart-legend-heading);
  white-space:nowrap;
}
.calendar-heatmap__month--active{
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(0,0,0,0.1);
}
.calendar-heatmap__cell{
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:6px;
  border:1px solid transparent;
  font-weight:600;
  font-size:clamp(8px, 0.55vw, 11px);
  line-height:1;
  color:var(--calendar-heatmap-text-strong);
  transition:transform 0.1s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  width:var(--calendar-heatmap-cell-size, 24px);
  height:var(--calendar-heatmap-cell-height, 26px);
}
.calendar-heatmap__cell--value{
  cursor:pointer;
}
.calendar-heatmap__cell--value:hover,
.calendar-heatmap__cell--value:focus{
  transform:scale(1.03);
  border-color:var(--calendar-heatmap-border);
}
.calendar-heatmap__cell--empty{
  background:var(--calendar-heatmap-empty);
  border-color:transparent;
}
.calendar-heatmap__cell--active{
  border-color:var(--accent);
  box-shadow:0 0 0 2px var(--calendar-heatmap-active);
}
.calendar-heatmap__cell--tone-bright{
  color:var(--calendar-heatmap-text-strong);
}
.calendar-heatmap__cell--tone-dim{
  color:var(--calendar-heatmap-text-contrast);
  text-shadow:0 1px 1px rgba(0,0,0,0.35);
}
.calendar-heatmap__legend{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:10.5px;
  color:var(--chart-legend-heading);
  padding:4px 2px 0;
}
.calendar-heatmap__legend-scale{
  display:flex;
  gap:6px;
}
.calendar-heatmap__legend-swatch{
  width:24px;
  height:10px;
  border-radius:999px;
  border:1px solid rgba(0,0,0,0.1);
}
.calendar-heatmap__cell--nodata{ opacity:0.7; }

.month-spread-grid{
  display:grid;
  gap:10px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  font-size:12px;
  color:var(--chart-legend);
}
.month-spread-grid .month-item{
  border:1px solid var(--chart-card-border);
  border-radius:10px;
  padding:10px;
  background:var(--surface-alt);
  cursor:pointer;
  transition:background 0.15s ease, transform 0.1s ease;
  border-width:1px;
  border-style:solid;
  text-align:left;
  appearance:none;
  color:var(--chart-legend);
  font:inherit;
}
.month-spread-grid .month-item:hover,
.month-spread-grid .month-item:focus{
  background:var(--surface);
  transform:translateY(-1px);
}
.month-spread-grid .month-item:focus{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.month-spread-grid .month-item strong{
  display:block;
  font-weight:700;
  color:var(--chart-header);
  margin-bottom:4px;
}
.month-spread-detail{
  margin-top:16px;
  border:1px solid var(--chart-card-border);
  border-radius:12px;
  padding:14px;
  background:var(--surface-alt);
  display:flex;
  flex-direction:column;
  gap:10px;
  position:relative;
}
.month-spread-detail.hidden{ display:none; }
.month-spread-detail.empty .month-spread-bars{ opacity:0.3; }
.month-spread-detail__header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12px;
  color:var(--chart-legend);
}
.month-spread-title{
  font-weight:600;
  color:var(--chart-header);
}
.month-spread-meta{
  display:flex;
  gap:12px;
  align-items:center;
}
.month-spread-count{
  font-size:11px;
  color:var(--chart-legend-heading);
}
.month-spread-selected{
  font-size:11px;
  color:var(--accent);
  font-weight:600;
}
.month-spread-sorting{
  display:flex;
  gap:8px;
  font-size:11px;
}
.sort-toggle{
  border:1px solid var(--preview-border);
  border-radius:999px;
  padding:4px 12px;
  background:var(--chart-canvas-bg);
  color:var(--chart-legend);
  font-weight:600;
  cursor:pointer;
  transition:background 0.15s ease, color 0.15s ease, transform 0.1s ease;
}
.sort-toggle:hover,
.sort-toggle:focus{
  background:var(--surface);
  transform:translateY(-1px);
}
.sort-toggle:focus{ outline:2px solid var(--accent); outline-offset:2px; }
.sort-toggle--active{
  background:var(--accent);
  color:#081018;
  border-color:transparent;
}
.month-spread-bars{
  position:relative;
  --spread-axis-gutter: 52px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(6px, 1fr));
  gap:2px;
  height:220px;
  background:var(--chart-canvas-bg);
  border-radius:8px;
  border:1px solid var(--chart-card-border);
  padding:8px 10px 28px calc(var(--spread-axis-gutter) + 6px);
  align-items:end;
}
.month-spread-bars .bar{
  background:linear-gradient(180deg,#3865d8,#2449a6);
  border-radius:4px 4px 2px 2px;
  min-width:4px;
}
.month-spread-bars .bar.low{
  background:linear-gradient(180deg,#12b886,#0b8f65);
}
.month-spread-bars .bar.high{
  background:linear-gradient(180deg,#f48c06,#c26a00);
}
.month-spread-bars .bar--active{
  outline:2px solid var(--accent);
  outline-offset:1px;
  box-shadow:0 0 0 2px rgba(15,18,24,0.6);
}
.month-spread-bars .axis-line{
  position:absolute;
  left:var(--spread-axis-gutter);
  right:10px;
  border-top:1px dashed var(--chart-grid);
}
.month-spread-bars .axis-line span{
  position:absolute;
  left:-32px;
  top:-8px;
  font-size:10px;
  color:var(--chart-legend);
  background:var(--chart-canvas-bg);
  padding:0 3px;
}
.month-spread-bars .axis-line span.unit{
  left:-36px;
  top:-24px;
  font-weight:600;
  color:var(--chart-legend-heading);
}
.month-spread-profile{
  margin-top:16px;
  border:1px solid var(--chart-card-border);
  border-radius:12px;
  background:var(--chart-card-bg);
  padding:12px;
}
.month-spread-canvas{
  display:block;
  width:100%;
  height:240px;
}
.month-spread-price-tooltip{
  pointer-events:none;
  min-width:160px;
}

.cycle-card{
  margin-top:18px;
  border:1px solid var(--chart-card-border);
  border-radius:12px;
  background:var(--chart-card-bg);
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:12px;
  position:relative;
}
.cycle-nav{
  display:flex;
  align-items:center;
  gap:10px;
}
.cycle-nav span{
  flex:1;
  text-align:center;
  color:var(--chart-legend);
  font-size:12.5px;
}
.cycle-panel canvas{
  width:100%;
  height:200px;
  display:block;
}
.cycle-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.cycle-panel{
  display:flex;
  flex-direction:column;
}
.cycle-panel header{
  margin-bottom:8px;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:0.04em;
  color:var(--chart-legend-heading);
}
.cycle-tooltip{
  position:absolute;
  min-width:160px;
  padding:10px 12px;
  border-radius:10px;
  background:var(--tooltip-bg);
  color:var(--tooltip-fg);
  font-size:11px;
  line-height:1.4;
  pointer-events:none;
  box-shadow:var(--tooltip-shadow);
}
.hidden{ display:none !important; }
.month-spread-tooltip{
  position:absolute;
  pointer-events:none;
  min-width:120px;
  padding:8px 10px;
  border-radius:10px;
  font-size:11px;
  line-height:1.4;
}