/* ==========================================================================
   demo.css — shared shell and instrument-panel components for /demos/*
   Loaded after base.css and components.css.
   ========================================================================== */

body.demo {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-block-size: 100vh;
  min-block-size: 100dvh;
}

/* ---------- Top bar ---------- */
.demo-bar {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "back title theme"
    "badge badge badge";
  align-items: center;
  gap: var(--s-3) var(--s-4);
  padding: var(--s-3) var(--gutter);
  background: color-mix(in srgb, var(--c-bg) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: var(--hair) solid var(--c-line);
}

.demo-bar__back {
  grid-area: back;
}

.demo-bar__title {
  grid-area: title;
  min-inline-size: 0;
}

.demo-bar__title .label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-bar__h1 {
  font-family: var(--f-display);
  font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-bar .theme-toggle {
  grid-area: theme;
}

.demo-badge {
  grid-area: badge;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.25rem 0.6rem;
  font-size: var(--fs-2xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  border: var(--hair) solid var(--c-accent);
  border-radius: var(--radius);
}

.demo-badge::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  background: var(--c-accent-fill);
  animation: blink 1.6s steps(1) infinite;
}

@media (min-width: 760px) {
  .demo-bar {
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    grid-template-areas: "back title badge theme";
  }

  .demo-badge {
    justify-self: end;
  }
}

/* Inside the portfolio modal the outer bar already shows the title */
.is-embedded .demo-bar {
  position: static;
}

/* ---------- Main grid ---------- */
.demo-main {
  display: grid;
  gap: var(--s-4);
  align-content: start;
  padding: var(--s-5) var(--gutter) var(--s-7);
  inline-size: 100%;
  max-inline-size: var(--max-w);
  margin-inline: auto;
}

.demo-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .demo-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .demo-grid--main {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .demo-grid--side {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }

  .span-2 {
    grid-column: span 2;
  }

  .span-all {
    grid-column: 1 / -1;
  }
}

/* ---------- Panel ---------- */
.panel {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  min-inline-size: 0;
  background: var(--c-surface);
  border: var(--hair) solid var(--c-line);
  border-radius: var(--radius);
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2) var(--s-4);
  padding: var(--s-3) var(--s-4);
  border-bottom: var(--hair) solid var(--c-line);
}

.panel__title {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-2);
}

.panel__body {
  display: grid;
  gap: var(--s-4);
  align-content: start;
  padding: var(--s-4);
  min-inline-size: 0;
}

.panel__body--flush {
  padding: 0;
}

.panel--dots .panel__body {
  background: radial-gradient(circle, var(--c-line) 1px, transparent 1.4px) 0 0 / 14px 14px;
}

/* ---------- Readouts ---------- */
.kv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8.5rem), 1fr));
  border-top: var(--hair) solid var(--c-line);
  border-inline-start: var(--hair) solid var(--c-line);
}

.kv__cell {
  display: grid;
  gap: var(--s-1);
  padding: var(--s-3);
  border-bottom: var(--hair) solid var(--c-line);
  border-inline-end: var(--hair) solid var(--c-line);
}

.kv__value {
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.5rem);
  font-weight: 500;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.kv__value small {
  font-size: var(--fs-xs);
  font-weight: 400;
  color: var(--c-muted);
  margin-inline-start: 0.2em;
}

.kv__value--accent {
  color: var(--c-accent);
}

.kv__value--fault {
  color: var(--c-fault);
}

/* Status LED: square pad */
.led {
  display: inline-block;
  inline-size: 8px;
  block-size: 8px;
  flex: none;
  border: var(--hair) solid var(--c-line-strong);
  vertical-align: middle;
  transition: background-color 0.2s var(--ease-soft), border-color 0.2s var(--ease-soft);
}

.led--on {
  background: var(--c-accent-fill);
  border-color: var(--c-accent-fill);
}

.led--ok {
  background: var(--c-ink-2);
  border-color: var(--c-ink-2);
}

.led--fault {
  background: var(--c-fault);
  border-color: var(--c-fault);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Meters ---------- */
.meter {
  display: grid;
  gap: var(--s-1);
}

.meter__row {
  display: flex;
  justify-content: space-between;
  gap: var(--s-3);
  font-size: var(--fs-xs);
}

.meter__track {
  position: relative;
  block-size: 8px;
  background:
    repeating-linear-gradient(90deg, var(--c-line) 0 1px, transparent 1px 10%),
    var(--c-bg-2);
  border: var(--hair) solid var(--c-line);
  overflow: hidden;
}

.meter__fill {
  position: absolute;
  inset: 0;
  background: var(--c-accent-fill);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.25s var(--ease-soft);
}

.meter__fill--ink {
  background: var(--c-ink-2);
}

/* ---------- Charts ---------- */
.chart {
  position: relative;
  inline-size: 100%;
  block-size: 180px;
}

.chart--tall {
  block-size: 240px;
}

.chart canvas {
  inline-size: 100%;
  block-size: 100%;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-1) var(--s-4);
  font-size: var(--fs-xs);
  color: var(--c-muted);
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.legend__swatch {
  inline-size: 14px;
  block-size: 2px;
  background: var(--c-ink-2);
}

.legend__swatch--accent {
  background: var(--c-accent-fill);
}

.legend__swatch--muted {
  background: repeating-linear-gradient(90deg, var(--c-muted) 0 4px, transparent 4px 7px);
}

/* ---------- Controls ---------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2);
}

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  border: var(--hair) solid var(--c-line-strong);
  border-radius: var(--radius);
}

.seg__btn {
  min-block-size: 2.5rem;
  padding: var(--s-1) var(--s-3);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}

.seg__btn + .seg__btn {
  border-inline-start: var(--hair) solid var(--c-line-strong);
}

.seg__btn[aria-pressed="true"] {
  background: var(--c-ink);
  color: var(--c-bg);
}

.seg__btn:not([aria-pressed="true"]):hover {
  background: var(--c-surface-2);
}

/* Switch (button role="switch") */
.switch {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  min-block-size: 2.5rem;
  font-size: var(--fs-sm);
  text-align: start;
}

.switch__track {
  position: relative;
  inline-size: 2.5rem;
  block-size: 1.25rem;
  flex: none;
  border: var(--hair) solid var(--c-line-strong);
  border-radius: 999px;
  transition: background-color var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}

.switch__track::after {
  content: "";
  position: absolute;
  inset-block-start: 2px;
  inset-inline-start: 2px;
  inline-size: calc(1.25rem - 6px);
  block-size: calc(1.25rem - 6px);
  border-radius: 50%;
  background: var(--c-ink-2);
  transition: transform 0.4s var(--ease-out), background-color var(--dur-fast) var(--ease-soft);
}

.switch[aria-checked="true"] .switch__track {
  background: var(--c-accent-fill);
  border-color: var(--c-accent-fill);
}

.switch[aria-checked="true"] .switch__track::after {
  transform: translateX(1.25rem);
  background: var(--c-accent-ink);
}

/* Range input */
.range {
  display: grid;
  gap: var(--s-2);
}

.range__head {
  display: flex;
  justify-content: space-between;
  gap: var(--s-3);
  font-size: var(--fs-xs);
}

.range input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  inline-size: 100%;
  block-size: 1.5rem;
  background: transparent;
  cursor: pointer;
}

.range input[type="range"]::-webkit-slider-runnable-track {
  block-size: 2px;
  background: var(--c-line-strong);
}

.range input[type="range"]::-moz-range-track {
  block-size: 2px;
  background: var(--c-line-strong);
}

.range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  inline-size: 14px;
  block-size: 14px;
  margin-block-start: -6px;
  background: var(--c-accent-fill);
  border: 0;
  border-radius: 0;
}

.range input[type="range"]::-moz-range-thumb {
  inline-size: 14px;
  block-size: 14px;
  background: var(--c-accent-fill);
  border: 0;
  border-radius: 0;
}

.range input[type="range"]:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* ---------- Event log ---------- */
.log {
  display: grid;
  align-content: start;
  max-block-size: 260px;
  overflow-y: auto;
  font-size: var(--fs-xs);
  line-height: 1.5;
  overscroll-behavior: contain;
}

.log li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--s-3);
  padding: var(--s-1) var(--s-4);
  border-bottom: var(--hair) solid var(--c-line);
  animation: log-in 0.5s var(--ease-out);
}

.log time {
  color: var(--c-muted);
  font-variant-numeric: tabular-nums;
}

.log .is-accent {
  color: var(--c-accent);
}

.log .is-fault {
  color: var(--c-fault);
}

@keyframes log-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* ---------- Data table ---------- */
.table-wrap {
  overflow-x: auto;
}

.dtable {
  inline-size: 100%;
  font-size: var(--fs-xs);
  font-variant-numeric: tabular-nums;
}

.dtable th,
.dtable td {
  padding: var(--s-2) var(--s-3);
  text-align: start;
  white-space: nowrap;
  border-bottom: var(--hair) solid var(--c-line);
}

.dtable th {
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.dtable tbody tr {
  transition: background-color 0.6s var(--ease-soft);
}

.dtable tbody tr.is-flash {
  background: var(--c-accent-soft);
}

/* ---------- Footer ---------- */
.demo-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-4) var(--gutter);
  border-top: var(--hair) solid var(--c-line);
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .demo-badge::before,
  .log li {
    animation: none;
  }

  .meter__fill {
    transition: none;
  }
}