/* ─── Color Studio ─────────────────────────────────────── */
.color-workspace {
    display: grid;
    grid-template-columns: minmax(320px, 400px) minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 0 0 32px;
}
.color-stage { min-width: 0; }
.color-picker-card {
    position: sticky;
    top: calc(var(--nav-height, 64px) + 12px);
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 20px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background:
        radial-gradient(120% 90% at 0% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 52%),
        var(--bg-elevated, var(--bg-secondary));
    box-shadow: var(--shadow-sm);
}
.color-wheel-area {
    position: relative;
    width: min(280px, 100%);
    aspect-ratio: 1;
    margin: 4px auto 0;
}
.color-wheel-area canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
    border-radius: 50%;
    touch-action: none;
    filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.22));
}
.color-swatch {
    position: absolute;
    inset: 32%;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.72);
    box-shadow:
        inset 0 0 0 1px rgba(0, 0, 0, 0.14),
        0 10px 24px rgba(0, 0, 0, 0.28);
    transition: background 0.12s ease;
}
.color-preview-strip { width: 100%; }
.color-preview-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 68px;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}
.color-preview-block.is-light {
    color: #0f172a;
    text-shadow: none;
}
.color-preview-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.color-preview-text strong {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.04em;
    font-variant-numeric: tabular-nums;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.color-preview-text span {
    font-size: 12px;
    opacity: 0.88;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.color-icon-btn,
.color-copy-mini {
    appearance: none;
    border: 0;
    background: rgba(15, 23, 42, 0.2);
    color: inherit;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s ease, transform 0.15s ease;
}
.color-preview-block.is-light .color-icon-btn {
    background: rgba(15, 23, 42, 0.08);
}
.color-icon-btn:hover,
.color-copy-mini:hover {
    transform: translateY(-1px);
    background: rgba(15, 23, 42, 0.32);
}
.color-sliders {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.color-slider-row {
    display: grid;
    grid-template-columns: 52px 1fr 44px;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}
.color-slider-row em {
    font-style: normal;
    text-align: right;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
    font-weight: 700;
}
.color-slider-row input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}
.color-value-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.color-value-card {
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary, var(--bg-input));
}
.color-value-card--wide { grid-column: 1 / -1; }
.color-value-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
}
.color-copy-mini {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 11px;
}
.color-copy-mini:hover {
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    color: var(--accent);
}
.color-value-input {
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 650;
    font-variant-numeric: tabular-nums;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    outline: none;
    padding: 0;
}

.color-library {
    min-width: 0;
    min-height: 640px;
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-elevated, var(--bg-secondary));
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.color-tabs {
    display: flex;
    gap: 4px;
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-tertiary) 85%, transparent);
    overflow-x: auto;
    scrollbar-width: thin;
    flex-wrap: nowrap;
}
.color-tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 750;
    padding: 10px 14px;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
    white-space: nowrap;
    flex-shrink: 0;
}
.color-tab:hover { color: var(--text-primary); }
.color-tab.is-active {
    background: var(--bg-elevated, #fff);
    color: var(--text-primary);
    box-shadow: var(--shadow-xs);
}
[data-theme="dark"] .color-tab.is-active {
    background: color-mix(in srgb, var(--bg-primary) 40%, var(--bg-elevated, #1e293b));
}
.color-tab-panels {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 16px;
}
.color-tab-panel[hidden] { display: none !important; }
.color-panel-hint {
    margin: 0 0 14px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.color-palettes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}
.color-palette-card {
    appearance: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-tertiary, var(--bg-input));
    padding: 12px;
    cursor: pointer;
    text-align: left;
    transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.color-palette-card:hover,
.color-palette-card.is-active {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border-color));
    box-shadow: var(--shadow-md);
}
.color-palette-meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}
.color-palette-name {
    appearance: none;
    border: 0;
    background: transparent;
    padding: 0;
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    font-weight: 800;
    color: var(--text-primary);
}
.color-palette-name:hover { color: var(--accent); }
.color-palette-tag {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}
.color-palette-swatches {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 3px;
    border-radius: 10px;
    overflow: hidden;
    min-height: 52px;
    border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
}
.color-palette-swatch {
    appearance: none;
    border: 0;
    margin: 0;
    min-height: 52px;
    width: 100%;
    cursor: pointer;
    position: relative;
}
.color-palette-swatch:hover { filter: brightness(1.06); }
.color-palette-swatch:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
    z-index: 1;
}
.color-palette-hexes {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 3px;
}
.color-palette-hexes span {
    font-size: 9px;
    font-weight: 650;
    text-align: center;
    color: var(--text-secondary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
}

.color-china,
.color-chip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
}
.color-chip {
    appearance: none;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-tertiary, var(--bg-input));
    text-align: left;
    display: flex;
    flex-direction: column;
    min-height: 96px;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.color-chip:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border-color));
}
.color-chip-swatch {
    display: block;
    height: 56px;
    width: 100%;
}
.color-chip-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 9px 11px 11px;
    min-width: 0;
}
.color-chip-name {
    font-size: 13px;
    font-weight: 750;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.color-chip-hex {
    font-size: 11px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Harmony modes on wheel */
.color-harmony-modes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
}
.color-harmony-mode {
    appearance: none;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary, var(--bg-input));
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.color-harmony-mode:hover { color: var(--text-primary); }
.color-harmony-mode.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.color-harmony-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    gap: 4px;
    align-items: stretch;
}
.color-harmony-swatch {
    appearance: none;
    border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
    border-radius: 10px;
    min-height: 44px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.color-harmony-swatch span {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 3px 4px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.02em;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,.55);
    background: linear-gradient(transparent, rgba(0,0,0,.45));
}
.color-harmony-swatch.is-base {
    box-shadow: inset 0 0 0 2px #fff, 0 0 0 1px rgba(15,23,42,.25);
}
.color-harmony-copy {
    appearance: none;
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    min-height: 44px;
}
.color-harmony-copy:hover { color: var(--accent); border-color: var(--accent); }

.color-palette-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 0 0 12px;
}
.color-palette-filter {
    appearance: none;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary, var(--bg-input));
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 700;
    padding: 7px 11px;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.color-palette-filter em {
    font-style: normal;
    font-size: 10px;
    opacity: 0.75;
    font-variant-numeric: tabular-nums;
}
.color-palette-filter.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.color-harmony {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.color-harmony-group {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-tertiary, var(--bg-input));
    padding: 12px;
}
.color-harmony-group.is-current {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border-color));
    box-shadow: var(--shadow-sm);
}
.color-harmony-group-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.color-harmony-group-head strong {
    font-size: 13px;
    font-weight: 800;
    margin-right: auto;
}
.color-harmony-use,
.color-harmony-copy-group {
    appearance: none;
    border: 1px solid var(--border-color);
    background: var(--bg-elevated, var(--bg-secondary));
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 700;
    padding: 5px 9px;
    border-radius: 999px;
    cursor: pointer;
}
.color-harmony-use:hover,
.color-harmony-copy-group:hover {
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border-color));
}
.color-harmony-group-chips {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

@media (max-width: 980px) {
    .color-workspace { grid-template-columns: 1fr; }
    .color-picker-card { position: static; }
    .color-library { min-height: 460px; }
}
@media (max-width: 560px) {
    .color-value-grid { grid-template-columns: 1fr; }
    .color-value-card--wide { grid-column: auto; }
    .color-tabs { overflow-x: auto; }
    .color-china,
    .color-chip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .color-palettes { grid-template-columns: 1fr; }
    .color-harmony-modes { justify-content: flex-start; }
}

/* Pantone match + image picker */
.color-pantone-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.color-pantone-swatch {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,.2);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,.12);
    background: #888;
}
#colorPantoneCard .color-value-input { flex: 1; min-width: 0; }
#colorPantoneCard.is-flash {
    animation: colorPantoneFlash .45s ease;
}
@keyframes colorPantoneFlash {
    0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); }
    100% { box-shadow: 0 0 0 8px transparent; }
}
.color-pantone-alts {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
}
.color-pantone-alt {
    appearance: none;
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 40%, transparent);
    color: var(--text-primary);
    border-radius: 10px;
    padding: 6px 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    text-align: left;
}
.color-pantone-alt.is-best {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border-color));
}
.color-pantone-alt:hover { border-color: var(--accent); }
.color-pantone-alt-swatch {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,.18);
}
.color-pantone-alt-meta {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}
.color-pantone-alt-meta strong {
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.color-pantone-alt-meta em {
    font-style: normal;
    font-size: 11px;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}
.color-pantone-note {
    margin: 8px 0 0;
    font-size: 11px;
    color: var(--text-secondary);
    opacity: .85;
}
.color-image-picker {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 4px;
    border-top: 1px solid var(--border-color);
}
.color-image-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    font-weight: 750;
}
.color-image-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}
.color-image-upload-btn,
.color-image-clear {
    appearance: none;
    border: 1px solid var(--border-color);
    background: var(--bg-elevated, var(--bg-secondary));
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: 999px;
    cursor: pointer;
}
.color-image-upload-btn:hover,
.color-image-clear:hover {
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border-color));
}
.color-image-drop {
    position: relative;
    min-height: 120px;
    border-radius: 14px;
    border: 1px dashed var(--border-color);
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 35%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: border-color .15s ease, background .15s ease;
}
.color-image-drop.is-drag,
.color-image-drop:hover {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border-color));
}
.color-image-drop.has-image {
    border-style: solid;
    min-height: 0;
}
.color-image-drop canvas {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: crosshair;
}
.color-image-hint {
    margin: 0;
    padding: 24px 16px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}
.color-image-extracts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
}
.color-extract-swatch {
    appearance: none;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 10px;
    min-height: 36px;
    cursor: pointer;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,.45);
    font-size: 10px;
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    padding: 4px;
}
.color-extract-swatch span {
    display: block;
    background: rgba(15,23,42,.35);
    border-radius: 6px;
    padding: 2px 0;
}