.clr-tool {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  gap: 1.25rem;
  align-items: start;
  margin: 1.5rem 0;
}

.clr-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.clr-left-panel,
.clr-right-panel {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
}

/* ─── Input ─────────────────────────────────────────────────── */

.clr-input-row {
  display: flex;
  gap: 0.6rem;
  align-items: stretch;
}

.clr-text-input {
  flex: 1 1 auto;
  min-height: 44px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.95rem;
}

.clr-picker-label {
  position: relative;
  flex: 0 0 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  overflow: hidden;
  transition: var(--transition);
}

.clr-picker-label:hover,
.clr-picker-label:focus-within {
  border-color: rgba(var(--primary-rgb), 0.55);
}

.clr-picker-label input[type="color"] {
  position: absolute;
  inset: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  border: 0;
  padding: 0;
  cursor: pointer;
  opacity: 0;
}

.clr-picker-swatch {
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius) - 3px);
  pointer-events: none;
}

.clr-default-primary-bg {
  background: var(--primary);
}

.clr-input-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.clr-format-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  border-radius: 99px;
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  transition: var(--transition);
}

.clr-status {
  min-height: 1.2rem;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.clr-status.is-danger { color: var(--danger); }
.clr-status.is-success { color: var(--success); }

.clr-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.clr-actions .btn {
  min-height: 44px;
}

/* ─── Formats ───────────────────────────────────────────────── */

.clr-formats {
  display: grid;
  gap: 0.45rem;
}

.clr-format-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 0.6rem;
  align-items: center;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: var(--transition);
}

.clr-format-row:hover {
  border-color: rgba(var(--primary-rgb), 0.35);
}

.clr-format-label {
  color: var(--text-muted);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  user-select: none;
}

.clr-format-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
  color: var(--text);
  overflow-wrap: anywhere;
}

.clr-copy-btn {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
}

/* ─── Swatch ─────────────────────────────────────────────────── */

.clr-swatch {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  min-height: 120px;
  padding: 1rem;
  border-radius: var(--radius);
  overflow: hidden;
  transition: background 0.15s;
}

.clr-swatch::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.28) 0%, transparent 55%);
  pointer-events: none;
}

.clr-swatch-hex {
  position: relative;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.clr-default-primary-text {
  color: var(--on-primary);
}

/* ─── WCAG Contrast ─────────────────────────────────────────── */

.clr-contrast-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.clr-contrast-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.clr-contrast-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  transition: background 0.15s, color 0.15s;
}

.clr-contrast-aa {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.clr-contrast-info {
  display: grid;
  gap: 0.35rem;
  padding: 0.75rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.clr-contrast-label {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.73rem;
  font-weight: 800;
  text-transform: uppercase;
}

.clr-contrast-ratio {
  display: block;
  color: var(--text);
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
}

.clr-contrast-grades {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.clr-grade {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: 99px;
  font-size: 0.73rem;
  font-weight: 800;
}

.clr-grade-pass {
  background: rgba(var(--success-rgb, 16, 185, 129), 0.12);
  color: var(--success);
}

.clr-grade-fail {
  background: rgba(var(--danger-rgb), 0.12);
  color: var(--danger);
}

/* ─── Palette ────────────────────────────────────────────────── */

.clr-palette-strip {
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: 0.35rem;
  border-radius: var(--radius);
  overflow: hidden;
}

.clr-palette-swatch {
  aspect-ratio: 1;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
}

.clr-palette-swatch:hover {
  transform: scaleY(1.15);
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 1;
  position: relative;
}

.clr-palette-swatch.is-base {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* ─── Section headers ────────────────────────────────────────── */

.clr-section-head {
  margin: 0 0 0.5rem;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

/* ─── Responsive ─────────────────────────────────────────────── */

@media (max-width: 900px) {
  .clr-tool {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .clr-left-panel,
  .clr-right-panel {
    padding: 1rem;
  }

  .clr-format-row {
    grid-template-columns: 3.75rem 1fr;
    grid-template-rows: auto auto;
  }

  .clr-copy-btn {
    grid-column: 2;
    grid-row: 2;
    justify-self: start;
  }

  .clr-contrast-grid {
    grid-template-columns: 1fr;
  }

  .clr-palette-strip {
    grid-template-columns: repeat(11, minmax(0, 1fr));
  }

  .clr-actions {
    flex-direction: column;
  }

  .clr-actions .btn {
    width: 100%;
    justify-content: center;
  }
}