:root {
  --bg: #0f141a;
  --panel: #151c24;
  --panel-2: #1b242e;
  --line: #263140;
  --text: #dbe4ee;
  --muted: #8b9bad;
  --accent: #3cdc96;
  --subject: #408bff;
  --clip: #ff9f40;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

#app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

header h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: 0.2px;
}

.headline {
  display: flex;
  align-items: center;
  gap: 14px;
}

.subtitle {
  margin: 8px 0 14px;
  color: var(--muted);
  max-width: 78ch;
}

button.lang {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 13px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px 18px;
  margin: 0 0 18px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--muted);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
}

.row.badges { margin-bottom: 6px; }

label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

label.check { gap: 6px; }
label input[type="range"] { width: 170px; }

select, input[type="checkbox"] {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 8px;
  font: inherit;
}

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 13px;
  font: inherit;
  cursor: pointer;
}

button:hover { border-color: #37506b; }
button.primary { background: #16372a; border-color: #1f6b4a; color: #b9f4d8; }
button.op.active { background: #1b3b56; border-color: #2f7fbf; color: #cfe9ff; }
button:disabled { opacity: 0.55; cursor: default; }

.badge {
  display: inline-block;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 12px;
  color: var(--muted);
}

a.badge.link { text-decoration: none; }
a.badge.link:hover { color: var(--text); border-color: #37506b; }

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 10px 0 0;
}

.canvas {
  width: 100%;
  aspect-ratio: 1000 / 640;
  display: block;
  background: #0c1116;
  border: 1px solid var(--line);
  border-radius: 12px;
  touch-action: none;
  cursor: grab;
}

.canvas .handle {
  fill: var(--subject);
  stroke: #0c1116;
  stroke-width: 2;
  cursor: crosshair;
}

.canvas .vertex {
  fill: var(--accent);
  stroke: #08110c;
  stroke-width: 1.5;
}

.progress {
  height: 4px;
  margin: 12px 0 2px;
  background: var(--panel-2);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
}

.row.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(124px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.metric {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric b {
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

svg.chart {
  width: 100%;
  display: block;
  aspect-ratio: 720 / 300;
  background: #0c1116;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 6px 0 14px;
}

svg.chart .axis { fill: var(--muted); font-size: 13px; }
svg.chart .value { fill: var(--accent); font-size: 13px; }

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
  margin-top: 26px;
}

footer a { color: var(--muted); }

.loading-progress {
  position: relative;
  display: block;
  width: 8rem;
  height: 8rem;
  margin: 20vh auto 1rem auto;
}

.loading-progress circle {
  fill: none;
  stroke: var(--line);
  stroke-width: 0.6rem;
  transform-origin: 50% 50%;
  transform: rotate(-90deg);
}

.loading-progress circle:last-child {
  stroke: var(--accent);
  stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
  transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
  position: absolute;
  text-align: center;
  font-weight: bold;
  inset: calc(20vh + 3.25rem) 0 auto 0;
  color: var(--muted);
}

.loading-progress-text:after {
  content: var(--blazor-load-percentage-text, "Loading");
}

#blazor-error-ui {
  background: #3a1d22;
  color: #ffd9df;
  bottom: 0;
  display: none;
  left: 0;
  padding: 0.6rem 1.25rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
}

#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }