/* Playground (Widget B) styles. Lays out a controls strip, a large plot
 * surface, and a metrics row. */

@import url("./main.css");

body { background: var(--color-bg); }

.demo-shell { padding: 28px 0 180px; }

.demo-shell .col { max-width: 1080px; }

.demo-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-rule);
  margin-bottom: 22px;
  font-family: var(--font-sans);
  font-size: 14px;
}

.demo-toolbar .breadcrumbs a { color: var(--color-text-muted); }
.demo-toolbar .breadcrumbs a:hover { color: var(--color-accent); }

.demo-toolbar .right-actions { display: flex; gap: 10px; align-items: center; }

.backend-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  border: 1px solid var(--color-rule);
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
}
.backend-badge::before {
  content: "GPU:";
  color: var(--color-text-faint);
  font-weight: 600;
}
.backend-badge.ok { background: #e5f4ec; border-color: #b9dfca; color: #1f7a4c; }
.backend-badge.ok-mid { background: #f5f0db; border-color: #ddca8a; color: #7a5b1f; }
.backend-badge.warn { background: #fbeae0; border-color: #e7c4ad; color: #8e3a1a; }

/* --- auto-tune toggle bar ------------------------------------------------- */

.autotune-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(135deg, #F4F2EB, #ECEAE0);
  border: 1px solid var(--color-rule);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 22px;
  font-family: var(--font-sans);
}

.autotune-toggle {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
  flex: 1;
}
.autotune-toggle input { display: none; }
.autotune-toggle .switch {
  position: relative;
  width: 46px;
  height: 26px;
  background: #c5cccc;
  border-radius: 999px;
  transition: background 0.15s;
  flex-shrink: 0;
}
.autotune-toggle .switch .thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform 0.15s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.autotune-toggle input:checked + .switch {
  background: var(--color-accent);
}
.autotune-toggle input:checked + .switch .thumb {
  transform: translateX(20px);
}
.autotune-label strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 1px;
}
.autotune-label small {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
}

.auto-btn-secondary {
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--color-rule);
  background: white;
  color: var(--color-text);
  cursor: pointer;
}
.auto-btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.auto-btn-secondary[disabled] { opacity: 0.6; cursor: progress; }

/* --- top row: dataset / series / horizon / mode --------------------------- */

.demo-topbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr auto auto;
  gap: 14px 18px;
  align-items: end;
  margin-bottom: 18px;
}

.demo-topbar .field { display: flex; flex-direction: column; gap: 4px; }

.demo-topbar label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.demo-topbar select, .demo-topbar .file-btn, .demo-topbar .auto-btn {
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 5px;
  border: 1px solid var(--color-rule);
  background: white;
  color: var(--color-text);
  cursor: pointer;
}

.demo-topbar .auto-btn {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  font-weight: 500;
}
.demo-topbar .auto-btn:hover { background: var(--color-accent-hover); }
.demo-topbar .auto-btn[disabled] { opacity: 0.65; cursor: progress; }

.demo-topbar .file-btn {
  background: var(--color-bg-card);
  border-color: var(--color-rule);
}
.demo-topbar .file-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.demo-topbar input[type=file] { display: none; }

.demo-topbar .horizon-control { display: flex; align-items: center; gap: 10px; }
.demo-topbar .horizon-control input[type=range] { flex: 1; }
.demo-topbar .horizon-readout {
  font-family: var(--font-mono);
  font-size: 13.5px;
  width: 48px;
  text-align: right;
}

/* --- HP chips -------------------------------------------------------------- */

.hp-chip-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}
.hp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  flex: 1;
  min-width: 0;
}
.hp-chip {
  padding: 5px 10px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-rule);
  border-radius: 999px;
  color: var(--color-text-muted);
}
.hp-chip strong { color: var(--color-accent); font-weight: 600; }

.autotune-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--color-rule);
  border-radius: 999px;
  background: white;
  color: var(--color-text);
  cursor: pointer;
  flex-shrink: 0;
  white-space: nowrap;
}
.autotune-btn:hover { border-color: var(--color-accent); }
.autotune-btn .autotune-state {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}
.autotune-btn.on .autotune-state {
  background: var(--color-accent);
  color: white;
}
.autotune-btn.off .autotune-state {
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
}

/* --- plot ----------------------------------------------------------------- */

#demo-plot {
  width: 100%;
  height: 360px;
  background: white;
  border: 1px solid var(--color-rule);
  border-radius: 6px;
}

/* --- controls grid -------------------------------------------------------- */

.demo-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
  margin: 18px 0 22px;
  font-family: var(--font-sans);
  font-size: 14px;
}

.control { display: flex; flex-direction: column; gap: 6px; }
.control .row { display: flex; align-items: center; gap: 10px; }
.control label.title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--color-text-muted);
}
.control input[type=range] { flex: 1; }
.control .value { font-family: var(--font-mono); font-size: 13px; min-width: 80px; text-align: right; }

.control .radio-row { display: flex; gap: 14px; }
.control .radio-row label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13.5px;
  cursor: pointer;
}
.control .hint {
  font-size: 11.5px;
  color: var(--color-text-faint);
  margin-top: 2px;
}

/* --- metrics hero row ----------------------------------------------------- */

.demo-header { margin-bottom: 22px; }
.demo-header h2 { margin: 0 0 6px; font-size: 26px; }
.demo-header p {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.metrics-hero {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
  font-family: var(--font-sans);
}
.metric-card {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-rule);
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.metric-card.primary {
  background: white;
  border: 1px solid var(--color-accent);
  box-shadow: 0 1px 3px rgba(45, 143, 111, 0.10);
}
.metric-card.highlight {
  background: linear-gradient(180deg, #F4F1E8, #ECE9DF);
  border-color: var(--color-rule);
}
.metric-card .key {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--color-text-muted);
}
.metric-card .val {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.15;
}
.metric-card.primary .val {
  font-size: 26px;
  color: var(--color-accent);
}
.metric-card .val.delta-good { color: #1f7a4c; font-weight: 600; }
.metric-card .val.delta-bad { color: #b53a1a; font-weight: 600; }
.metric-card .sub {
  font-size: 11.5px;
  color: var(--color-text-faint);
  font-family: var(--font-sans);
}

@media (max-width: 980px) {
  .metrics-hero { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .metrics-hero { grid-template-columns: repeat(2, 1fr); }
  .metric-card .val, .metric-card.primary .val { font-size: 18px; }
}

/* --- status pill ---------------------------------------------------------- */

.status {
  position: fixed;
  bottom: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 6px 12px;
  background: var(--color-text);
  color: white;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.status.visible { opacity: 0.9; }

@media (max-width: 860px) {
  .demo-topbar { grid-template-columns: 1fr 1fr; }
  .demo-controls { grid-template-columns: 1fr; }
}