:root{
  --bg: #0b0e14;
  --card: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.66);
  --border: rgba(255,255,255,0.14);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --primary: #6ee7ff;
  --primary-2: #9b8cff;
  --btn: rgba(255,255,255,0.10);
  --btn-hover: rgba(255,255,255,0.16);
  --focus: rgba(110,231,255,0.35);

  --chart-bar: rgba(110,231,255,0.55);
  --chart-crit: rgba(155,140,255,0.70);

  --radius: 16px;
  --radius-sm: 12px;
  --pad: 16px;
  --gap: 16px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

@media (prefers-color-scheme: light){
  :root{
    --bg: #f6f7fb;
    --card: rgba(255,255,255,0.92);
    --text: rgba(15, 23, 42, 0.92);
    --muted: rgba(15, 23, 42, 0.66);
    --border: rgba(15, 23, 42, 0.12);
    --shadow: 0 10px 30px rgba(17, 24, 39, 0.10);
    --btn: rgba(15, 23, 42, 0.06);
    --btn-hover: rgba(15, 23, 42, 0.10);
    --focus: rgba(59, 130, 246, 0.25);

    --chart-bar: rgba(59, 130, 246, 0.55);
    --chart-crit: rgba(168, 85, 247, 0.55);
  }
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 5%, rgba(155,140,255,0.22), transparent 60%),
              radial-gradient(1000px 700px at 90% 10%, rgba(110,231,255,0.18), transparent 55%),
              radial-gradient(900px 700px at 60% 95%, rgba(110,231,255,0.10), transparent 55%),
              var(--bg);
}

code{ font-family: var(--mono); }

.app-header{
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo{
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: color-mix(in oklab, var(--bg) 16%, white);
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: var(--shadow);
}

.brand-text h1{
  font-size: 16px;
  line-height: 1.2;
  margin: 0;
}

.subtitle{
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--muted);
}

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

.container{
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--gap);
}

@media (max-width: 960px){
  .container{ grid-template-columns: 1fr; }
  .app-header{ position: relative; }
}

.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: var(--pad);
  overflow: hidden;
}

.card h2{
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: 0.2px;
}

.grid{
  display: grid;
  gap: 14px;
}

.field{
  display: grid;
  gap: 8px;
}

.label{
  font-size: 12px;
  color: var(--muted);
}

.help{
  font-size: 12px;
  color: var(--muted);
}

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

.sep{
  font-size: 12px;
  color: var(--muted);
}

input[type="number"], select{
  width: 100%;
  padding: 10px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--card) 88%, transparent);
  color: var(--text);
  outline: none;
}

input[type="range"]{
  width: 100%;
}

input:focus, select:focus, button:focus{
  box-shadow: 0 0 0 3px var(--focus);
}

.pill{
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
  font-size: 12px;
  color: var(--muted);
}

.actions{
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.btn{
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--btn);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.btn:hover{ background: var(--btn-hover); }
.btn.secondary{ background: transparent; }

.details{
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.details summary{
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
}

.details-body{
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.details-body ul{
  padding-left: 18px;
  margin: 8px 0 0;
}

.summary{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

@media (max-width: 540px){
  .summary{ grid-template-columns: 1fr; }
}

.stat{
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: color-mix(in oklab, var(--card) 90%, transparent);
}

.stat .label{
  font-size: 11px;
  color: var(--muted);
}

.stat .value{
  font-size: 16px;
  margin-top: 6px;
  font-weight: 800;
  font-family: var(--mono);
}

.chart-wrap{
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

.chart-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.muted{ color: var(--muted); font-size: 12px; }

.toggle{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  user-select: none;
}

.canvas-shell{
  position: relative;
}

#chart{
  width: 100%;
  height: 260px;
  display: block;
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  border: 1px solid var(--border);
}

.tooltip{
  position: absolute;
  pointer-events: none;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--card) 92%, transparent);
  box-shadow: var(--shadow);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  transform: translate(10px, -10px);
  max-width: 260px;
}

.chart-legend{
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.legend-item{
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.swatch{
  width: 14px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.swatch.crit{ background: var(--chart-crit); }
.swatch.normal{ background: var(--chart-bar); }

.table-wrap{
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 480px;
}

#critTable{
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

#critTable th, #critTable td{
  padding: 10px 10px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  white-space: nowrap;
}

#critTable th{
  position: sticky;
  top: 0;
  z-index: 1;
  background: color-mix(in oklab, var(--card) 94%, transparent);
  backdrop-filter: blur(8px);
  font-size: 12px;
  color: var(--muted);
}

#critTable th .alpha-head{
  display: grid;
  gap: 2px;
}

#critTable th .alpha-head .top{
  color: var(--text);
  font-weight: 800;
}

#critTable tr.is-active td{
  background: color-mix(in oklab, var(--primary) 18%, transparent);
}

#critTable td{
  font-family: var(--mono);
}

.footnote{
  margin: 14px 2px 0;
  color: var(--muted);
  font-size: 12px;
}

.app-footer{
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 18px 22px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}