/* Color system — spec cards, formats, WCAG chips, scales, export.
   Depends on tokens.css + base.css. */

/* Export actions — copy the whole palette as code, docked in the section head. */
.section-head.has-actions { align-items: center; flex-wrap: wrap; }
.export-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-left: auto;
}
.export-label {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  color: var(--ink-3);
  margin-right: var(--s-1);
}
.export-btn {
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  color: var(--ink-2);
  cursor: copy;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  padding: var(--s-1) var(--s-3);
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease),
    transform var(--dur-1) var(--ease);
}
.export-btn:hover {
  color: var(--ink);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.swatch-group + .swatch-group,
.swatch-group + .scale { margin-top: var(--s-8); }
.swatch-group > .eyebrow { margin-bottom: var(--s-3); }

.swatch-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--s-3);
}

/* Spec card: a color band + its full spec. */
.swatch {
  position: relative;
  display: grid;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  transition: transform var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease),
    box-shadow var(--dur-1) var(--ease);
}
.swatch:hover {
  transform: translateY(-2px);
  border-color: var(--border);
  box-shadow: var(--shadow-2);
}
.swatch.is-empty {
  padding: var(--s-4);
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: var(--t-label);
}

/* The color itself — click to copy, carries a live legibility sample. */
.swatch-band {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 84px;
  padding: var(--s-3);
  appearance: none;
  border: 0;
  cursor: copy;
  text-align: left;
}
.swatch-band::after { /* hairline so light colors keep an edge */
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
  pointer-events: none;
}
.swatch-aa {
  font-family: var(--font-ui);
  font-size: 22px;
  font-weight: var(--w-semi);
  letter-spacing: -0.02em;
  line-height: 1;
  opacity: 0.9;
}
.wcag-chip {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  font-weight: var(--w-med);
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: var(--r-pill);
  background: rgba(0, 0, 0, 0.16);
  color: currentColor;
  white-space: nowrap;
}
.wcag-chip.fail { background: rgba(239, 68, 68, 0.22); }

.swatch-spec {
  display: grid;
  gap: var(--s-2);
  padding: var(--s-3);
}
.swatch-hex {
  justify-self: start;
  appearance: none;
  border: 0;
  background: none;
  color: var(--ink);
  cursor: copy;
  font-family: var(--font-mono);
  font-size: var(--t-data);
  font-weight: var(--w-med);
  padding: 0;
}
.swatch-hex:hover { color: var(--accent); }

.fmt-row { display: flex; flex-wrap: wrap; gap: var(--s-1); }
.fmt-chip {
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--ink-3);
  cursor: copy;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.04em;
  padding: 2px 6px;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.fmt-chip:hover { color: var(--ink); border-color: var(--accent); }

/* Poetic name — the headline of every color card ("Meteor Shower"). */
.swatch-name {
  font-family: var(--font-ui);
  font-size: var(--t-sm);
  font-weight: var(--w-semi);
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.2;
}
.swatch-apca { color: var(--ink-3); font-family: var(--font-mono); font-size: var(--t-micro); letter-spacing: 0.02em; }
.swatch-pms { color: var(--ink-2); font-family: var(--font-mono); font-size: var(--t-label); overflow-wrap: anywhere; }
.swatch-meta { color: var(--ink-3); font-family: var(--font-mono); font-size: var(--t-label); overflow-wrap: anywhere; }

/* Primary showcase — the brand color as a wide feature card. */
.color-hero {
  display: grid;
  grid-template-columns: minmax(240px, 360px) minmax(280px, 1fr) minmax(220px, 320px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-2), 0 0 0 1px var(--accent-wash);
  transition: box-shadow var(--dur-1) var(--ease);
}
.color-hero:hover { box-shadow: var(--shadow-3), 0 0 0 1px var(--accent-line); }
.color-hero-band {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 240px;
  padding: var(--s-5);
  appearance: none;
  border: 0;
  cursor: copy;
  text-align: left;
}
.color-hero-band::after {
  content: ''; position: absolute; inset: 0;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
  pointer-events: none;
}
.color-hero-aa {
  font-family: var(--font-ui);
  font-size: 56px;
  font-weight: var(--w-semi);
  letter-spacing: -0.03em;
  line-height: 0.9;
  opacity: 0.92;
}
.color-hero-spec {
  display: grid;
  align-content: center;
  gap: var(--s-2);
  padding: var(--s-6);
}
.color-hero-spec .swatch-name { font-size: var(--t-title); letter-spacing: -0.02em; }
.color-hero-spec .swatch-hex { font-size: var(--t-body); }
.color-hero-spec .fmt-row { margin-top: var(--s-1); }

/* "In use" preview — the primary color wearing real UI. */
.color-hero-demo {
  display: grid;
  align-content: center;
  justify-items: start;
  gap: var(--s-3);
  padding: var(--s-6);
  border-left: 1px solid var(--border-soft);
}
.demo-btn {
  font-family: var(--font-ui);
  font-size: var(--t-sm);
  font-weight: var(--w-semi);
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-pill);
  line-height: 1;
}
.demo-solid { box-shadow: var(--shadow-1); }
.demo-ghost { background: transparent; border: 1px solid currentColor; }
.demo-link {
  font-family: var(--font-ui);
  font-size: var(--t-sm);
  font-weight: var(--w-med);
}

@media (max-width: 900px) {
  .color-hero { grid-template-columns: minmax(240px, 360px) 1fr; }
  .color-hero-demo { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--border-soft); grid-auto-flow: column; justify-content: start; align-items: center; }
}
@media (max-width: 640px) {
  .color-hero { grid-template-columns: minmax(0, 1fr); }
  .color-hero-band { min-height: 180px; }
  .color-hero-demo { grid-auto-flow: row; }
}

/* Harmonies generated from the primary. */
.harmony-box { margin-top: var(--s-8); }
.harmony-set { display: grid; gap: var(--s-3); }
.harmony-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: var(--s-3);
}
.harmony-label {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  color: var(--ink-2);
}
.harmony-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 2px;
  border-radius: var(--r-sm);
  overflow: hidden;
}
.harmony-cell {
  display: flex;
  align-items: flex-end;
  min-height: 52px;
  padding: var(--s-1) var(--s-2);
  appearance: none;
  border: 0;
  cursor: copy;
  text-align: left;
  transition: transform var(--dur-1) var(--ease);
}
.harmony-cell:hover { transform: translateY(-2px); z-index: 1; }
.harmony-hex {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  opacity: 0;
  transition: opacity var(--dur-1) var(--ease);
}
.harmony-cell:hover .harmony-hex { opacity: 0.9; }
@media (max-width: 560px) {
  .harmony-row { grid-template-columns: minmax(0, 1fr); gap: var(--s-1); }
}

/* Scales */
.scale + .scale { margin-top: var(--s-5); }
.scale-label {
  display: flex;
  gap: var(--s-2);
  align-items: baseline;
  margin-bottom: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t-label);
}
.scale-name { color: var(--ink-2); }
.scale-base { color: var(--ink-3); }

.scale-strip {
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: 2px;
  border-radius: var(--r-sm);
  overflow: hidden;
}
.scale-cell {
  position: relative;
  display: grid;
  align-content: space-between;
  min-height: 72px;
  gap: var(--s-1);
  padding: var(--s-2) var(--s-1);
  appearance: none;
  border: 0;
  cursor: copy;
  text-align: left;
  transition: transform var(--dur-1) var(--ease);
}
.scale-cell:hover { transform: scale(1.06); z-index: 1; border-radius: var(--r-sm); }
.scale-level { font-family: var(--font-mono); font-size: var(--t-micro); font-weight: var(--w-med); opacity: 0.9; }
.scale-hex {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  opacity: 0;
  transition: opacity var(--dur-1) var(--ease);
  overflow-wrap: anywhere;
}
.scale-cell:hover .scale-hex { opacity: 0.85; }
.scale-cell.is-empty { background: var(--surface-3); cursor: default; }

@media (max-width: 720px) {
  .scale-strip { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}
@media (max-width: 460px) {
  .swatch-row { grid-template-columns: minmax(0, 1fr); }
  .scale-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}