/* Light colour viewer — page-specific styles.
 * Relies on global tokens (--ink, --ink-soft, --muted, --accent, --bg,
 * --bg-alt, --sans, --mono) and shared classes (.btn-primary, .btn-ghost,
 * .kicker, .mono, .section-head). */

/* ---------- Stage ---------- */
.kv-stage {
  position: relative;
  display: flex;
  min-height: clamp(360px, 52vh, 580px);
  border: 1px solid rgba(10, 25, 41, 0.14);
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-alt);
}
.kv-pane {
  position: relative;
  flex: 1 1 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.25s ease;
}
.kv-readout {
  text-align: center;
  color: #fff;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.22);
  pointer-events: none;
}
.kv-pane.kv-ink .kv-readout { color: var(--ink); text-shadow: none; }
.kv-k {
  display: block;
  font-family: var(--mono);
  font-size: clamp(34px, 6vw, 62px);
  font-weight: 600;
  line-height: 1.05;
}
.kv-name {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.85;
}
.kv-pin-tag {
  position: absolute;
  top: 14px;
  left: 16px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border-radius: 99px;
  padding: 5px 12px;
}
.kv-unpin {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.kv-unpin:hover { background: #fff; }
.kv-noscript { margin: auto; padding: 24px; color: var(--muted); }

@media (max-width: 700px) {
  .kv-stage.kv-split { flex-direction: column; }
  .kv-stage { min-height: 420px; }
}

/* ---------- Fill screen (CSS overlay, not the Fullscreen API) ---------- */
.kv-stage.kv-full {
  position: fixed;
  inset: 0;
  z-index: 1200;
  min-height: 0;
  border: none;
  border-radius: 0;
  cursor: pointer;
}
body.kv-lock { overflow: hidden; }
.kv-full-hint { display: none; }
.kv-stage.kv-full .kv-full-hint {
  display: block;
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border-radius: 99px;
  padding: 8px 16px;
}

/* ---------- Controls ---------- */
.kv-controls { margin-top: 24px; }

.kv-slider {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 36px;
  margin: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  /* JS replaces this with the precise computed blackbody gradient. */
  --kv-track: linear-gradient(to right,
    rgb(255,71,0), rgb(255,109,0) 4.5%, rgb(255,138,18) 9%,
    rgb(255,169,87) 15.5%, rgb(255,196,137) 22.7%, rgb(255,219,186) 31.8%,
    rgb(255,228,206) 36.4%, rgb(255,254,250) 50%, rgb(221,230,255) 63.6%,
    rgb(202,218,255) 81.8%, rgb(191,212,255) 100%);
}
.kv-slider::-webkit-slider-runnable-track {
  height: 14px;
  border-radius: 99px;
  border: 1px solid rgba(10, 25, 41, 0.22);
  background: var(--kv-track);
}
.kv-slider::-moz-range-track {
  height: 14px;
  border-radius: 99px;
  border: 1px solid rgba(10, 25, 41, 0.22);
  background: var(--kv-track);
}
.kv-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px;
  height: 28px;
  margin-top: -8px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--ink);
  box-shadow: 0 1px 5px rgba(10, 25, 41, 0.3);
  cursor: grab;
}
.kv-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--ink);
  box-shadow: 0 1px 5px rgba(10, 25, 41, 0.3);
  cursor: grab;
}
.kv-slider:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 99px; }

.kv-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.kv-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.kv-chip {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px solid rgba(10, 25, 41, 0.2);
  border-radius: 99px;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.kv-chip:hover { border-color: var(--ink); }
.kv-chip-star { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.kv-chip.is-on {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.kv-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.kv-screen-note {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--muted);
  max-width: 72ch;
}

/* ---------- Guidance: label cards ---------- */
.kv-labels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(14px, 2vw, 22px);
}
.kv-label-card {
  background: var(--bg);
  border: 1px solid rgba(10, 25, 41, 0.12);
  border-radius: 14px;
  padding: clamp(18px, 2vw, 24px);
}
.kv-label-swatch {
  display: block;
  height: 14px;
  border-radius: 99px;
  border: 1px solid rgba(10, 25, 41, 0.12);
  margin-bottom: 16px;
}
.kv-sw-2700 { background: rgb(255, 169, 87); }
.kv-sw-4000 { background: rgb(255, 209, 163); }
.kv-sw-6500 { background: rgb(255, 254, 250); }
.kv-label-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.kv-label-card h3 .mono {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}
.kv-label-card p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--ink-soft); }

.kv-note {
  margin-top: clamp(18px, 2.5vw, 28px);
  border-left: 3px solid var(--accent);
  background: var(--bg-alt);
  border-radius: 0 12px 12px 0;
  padding: 16px 20px;
  max-width: 78ch;
}
.section.alt .kv-note { background: var(--bg); }
.kv-note p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--ink-soft); }

/* ---------- Guidance: rooms table ---------- */
.kv-rooms-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}
.kv-rooms {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  min-width: 560px;
  font-size: 14.5px;
}
.kv-rooms th {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  text-align: left;
  padding: 0 14px 10px;
  border-bottom: 1px solid rgba(10, 25, 41, 0.18);
}
.kv-rooms td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(10, 25, 41, 0.08);
  vertical-align: top;
  color: var(--ink-soft);
}
.kv-rooms td:first-child { color: var(--ink); font-weight: 600; white-space: nowrap; }
.kv-rooms td.mono { font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.kv-see {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  white-space: nowrap;
}
.kv-see:hover { color: var(--accent-h); text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  .kv-pane, .kv-chip { transition: none; }
}