/* ============================================================
   Image Color Changer — Tool Styles
   Prefix: .icc-*   Accent: #8B5CF6 (purple)
   ============================================================ */

/* ── CSS Variables ───────────────────────────────────────── */
.icc-section {
    --icc-accent: #8B5CF6;
    --icc-accent-light: rgba(139, 92, 246, 0.10);
    --icc-accent-ring: rgba(139, 92, 246, 0.30);
    --icc-text: #0F172A;
    --icc-label: #1E293B;
    --icc-muted: #475569;
    --icc-border: rgba(139, 92, 246, 0.12);
    --icc-input-border: #C9D6E3;
    --icc-input-bg: #FFFFFF;
    --icc-surface: #FFFFFF;
    --icc-bg: #F8FAFC;
    --icc-stage-bg: #F1F5F9;
    --icc-radius: 14px;
    --icc-radius-sm: 8px;

    padding: 40px 0 60px;
}

/* ── Section Header ──────────────────────────────────────── */
.icc-section-header {
    text-align: center;
    margin-bottom: 32px;
}

.icc-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--icc-accent-light);
    color: var(--icc-accent);
    border: 1px solid var(--icc-accent-ring);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.icc-badge i {
    font-size: 15px;
}

.icc-section-desc {
    font-size: 15px;
    color: var(--icc-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Tool Card ───────────────────────────────────────────── */
.icc-card {
    background: var(--icc-surface);
    border: 1px solid var(--icc-border);
    border-radius: var(--icc-radius);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

/* ── Body Layout ─────────────────────────────────────────── */
.icc-body {
    display: flex;
    flex-direction: column;
}

/* ── Canvas Area (full width, top) ───────────────────────── */
.icc-canvas-area {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--icc-stage-bg);
    background-image:
        linear-gradient(rgba(139, 92, 246, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.04) 1px, transparent 1px);
    background-size: 20px 20px;
    min-height: 380px;
    overflow: auto;
    padding: 24px;
}

/* ── Upload Zone ─────────────────────────────────────────── */
.icc-upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 48px 40px;
    border: 2px dashed var(--icc-input-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.18s ease;
    text-align: center;
    width: 100%;
    max-width: 460px;
}

.icc-upload-zone:hover,
.icc-upload-zone.drag-over {
    border-color: var(--icc-accent);
    background: var(--icc-accent-light);
}

.icc-upload-icon {
    font-size: 36px;
    color: var(--icc-accent);
    margin-bottom: 4px;
}

.icc-upload-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--icc-label);
    margin: 0;
}

.icc-upload-sub {
    font-size: 13px;
    color: var(--icc-muted);
    margin: 0;
}

.icc-upload-formats {
    font-size: 11.5px;
    color: var(--icc-muted);
    margin: 4px 0 0;
    opacity: 0.7;
}

/* ── Controls Bar (horizontal row below canvas) ─────────── */
.icc-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    border-top: 1px solid var(--icc-border);
    background: #F8FBFF;
}

.icc-ctrl-group {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
}

.icc-ctrl-group--tolerance {
    min-width: 200px;
}

.icc-ctrl-group--btn {
    justify-content: flex-end;
}

.icc-ctrl-group-lbl {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--icc-label);
}

.icc-ctrl-divider {
    width: 1px;
    height: 48px;
    background: var(--icc-border);
    flex-shrink: 0;
    align-self: center;
}

.icc-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--icc-accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

.icc-ctrl-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--icc-label);
    font-family: 'Fira Code', monospace;
}

.icc-hint-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 500;
    color: var(--icc-muted);
    background: rgba(71, 85, 105, 0.08);
    border-radius: 4px;
    padding: 1px 6px;
    margin-left: 6px;
    vertical-align: middle;
}

/* ── Source Color Row ────────────────────────────────────── */
.icc-source-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icc-source-swatch {
    width: 44px;
    height: 44px;
    border-radius: var(--icc-radius-sm);
    border: 2px solid var(--icc-input-border);
    background: var(--icc-stage-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color 0.18s;
}

.icc-source-swatch i {
    font-size: 18px;
    color: var(--icc-muted);
    pointer-events: none;
}

.icc-source-swatch.has-color i {
    display: none;
}

.icc-source-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.icc-source-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--icc-label);
    font-family: 'Fira Code', monospace;
}

.icc-source-hint {
    font-size: 11px;
    color: var(--icc-muted);
}

/* ── Target Color Row ────────────────────────────────────── */
.icc-target-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icc-color-input {
    width: 44px;
    height: 44px;
    border-radius: var(--icc-radius-sm);
    border: 2px solid var(--icc-input-border);
    padding: 2px;
    cursor: pointer;
    background: var(--icc-input-bg);
    flex-shrink: 0;
    transition: border-color 0.18s;
}

.icc-color-input:hover {
    border-color: var(--icc-accent);
}

.icc-target-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--icc-label);
    font-family: 'Fira Code', monospace;
}

/* ── Label Row (tolerance) ───────────────────────────────── */
.icc-label-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.icc-range-hint {
    font-size: 10.5px;
    color: var(--icc-muted);
}

.icc-val-badge {
    font-size: 12px;
    font-weight: 700;
    color: var(--icc-accent);
    background: var(--icc-accent-light);
    border-radius: 4px;
    padding: 2px 8px;
}

.icc-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 5px;
    border-radius: 3px;
    background: linear-gradient(to right,
            var(--icc-accent) 0%,
            var(--icc-accent) calc(var(--pct, 30) * 1%),
            #D1D5DB calc(var(--pct, 30) * 1%),
            #D1D5DB 100%);
    outline: none;
    cursor: pointer;
}

.icc-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--icc-accent);
    border: 2px solid #FFFFFF;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.12s;
}

.icc-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.icc-range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--icc-accent);
    border: 2px solid #FFFFFF;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

/* ── Toggle Switch ───────────────────────────────────────── */
.icc-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.icc-toggle-label-group {
    display: flex;
    align-items: center;
}

.icc-toggle {
    width: 38px;
    height: 22px;
    border-radius: 11px;
    border: none;
    background: #CBD5E1;
    position: relative;
    cursor: pointer;
    transition: background 0.2s ease;
    flex-shrink: 0;
    padding: 0;
}

.icc-toggle.active {
    background: var(--icc-accent);
}

.icc-toggle-knob {
    display: block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #FFFFFF;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: transform 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}

.icc-toggle.active .icc-toggle-knob {
    transform: translateX(16px);
}

/* ── Buttons ─────────────────────────────────────────────── */
.icc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13.5px;
    font-weight: 600;
    border-radius: var(--icc-radius-sm);
    cursor: pointer;
    transition: all 0.18s ease;
    border: 1.5px solid transparent;
    white-space: nowrap;
}

.icc-btn i {
    font-size: 15px;
}

.icc-btn-add {
    padding: 9px 18px;
    background: var(--icc-accent);
    color: #FFFFFF;
    border-color: var(--icc-accent);
    white-space: nowrap;
}

.icc-btn-add:hover:not(:disabled) {
    background: #7C3AED;
    border-color: #7C3AED;
}

.icc-btn-add:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.icc-btn-primary {
    flex: 1;
    padding: 10px 16px;
    background: var(--icc-accent);
    color: #FFFFFF;
    border-color: var(--icc-accent);
}

.icc-btn-primary:hover:not(:disabled) {
    background: #7C3AED;
    border-color: #7C3AED;
}

.icc-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icc-btn-ghost {
    flex: 0 0 auto;
    padding: 10px 14px;
    background: transparent;
    color: var(--icc-muted);
    border-color: var(--icc-input-border);
}

.icc-btn-ghost:hover {
    border-color: #EF4444;
    color: #EF4444;
}

/* ── Queue Section ───────────────────────────────────────── */
.icc-queue-section {
    padding: 12px 20px;
    border-top: 1px solid var(--icc-border);
    background: #F8FBFF;
}

.icc-queue-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.icc-queue-count {
    font-size: 11px;
    font-weight: 600;
    color: var(--icc-accent);
    background: var(--icc-accent-light);
    border-radius: 20px;
    padding: 2px 8px;
}

.icc-rules-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Individual rule card */
.icc-rule-card {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--icc-input-bg);
    border: 1px solid var(--icc-border);
    border-radius: 8px;
    white-space: nowrap;
}

.icc-rule-swatch {
    width: 22px;
    height: 22px;
    border-radius: 5px;
    border: 1.5px solid rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.icc-rule-arrow {
    font-size: 14px;
    color: var(--icc-muted);
    flex-shrink: 0;
}

.icc-rule-meta {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.icc-rule-hex {
    font-size: 11px;
    font-weight: 600;
    color: var(--icc-label);
    font-family: 'Fira Code', monospace;
    white-space: nowrap;
}

.icc-rule-info {
    font-size: 10px;
    color: var(--icc-muted);
}

.icc-rule-del {
    width: 24px;
    height: 24px;
    border-radius: 5px;
    border: none;
    background: transparent;
    color: var(--icc-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.15s;
    flex-shrink: 0;
    padding: 0;
}

.icc-rule-del:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}

/* ── Bottom Row (actions + download side by side) ────────── */
.icc-bottom-row {
    display: flex;
    align-items: center;
    gap: 0;
    border-top: 1px solid var(--icc-border);
    flex-wrap: wrap;
}

.icc-actions {
    display: flex;
    gap: 8px;
    padding: 12px 20px;
}

.icc-download-section {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-left: 1px solid var(--icc-border);
}

.icc-download-label {
    font-size: 11.5px;
    color: var(--icc-muted);
    margin: 0;
    font-weight: 500;
    white-space: nowrap;
}

.icc-download-btns {
    display: flex;
    gap: 8px;
}

.icc-btn-dl {
    flex: 1;
    padding: 9px 12px;
    background: var(--icc-input-bg);
    color: var(--icc-label);
    border-color: var(--icc-input-border);
}

.icc-btn-dl:hover {
    border-color: var(--icc-accent);
    color: var(--icc-accent);
    background: var(--icc-accent-light);
}

/* ── Canvas ──────────────────────────────────────────────── */
/* Enforce hidden attribute — explicit display overrides must not win */
.icc-upload-zone[hidden],
.icc-canvas[hidden] {
    display: none !important;
}

.icc-canvas {
    display: block;
    width: 100%;
    max-height: 620px;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.10);
    cursor: crosshair;
}

/* ── Canvas Toolbar ──────────────────────────────────────── */
.icc-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 20px;
    border-top: 1px solid var(--icc-border);
    background: var(--icc-surface);
    gap: 12px;
    flex-wrap: wrap;
}

.icc-canvas-hint {
    font-size: 13px;
    color: var(--icc-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.icc-canvas-hint i {
    font-size: 15px;
    color: var(--icc-accent);
}

.icc-canvas-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 7px;
    border: 1.5px solid var(--icc-input-border);
    background: transparent;
    color: var(--icc-muted);
    font-size: 12.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.16s;
    white-space: nowrap;
}

.icc-canvas-btn:hover {
    border-color: var(--icc-accent);
    color: var(--icc-accent);
    background: var(--icc-accent-light);
}

/* ── Toast ───────────────────────────────────────────────── */
.icc-toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: #1E293B;
    color: #FFFFFF;
    font-size: 13.5px;
    font-weight: 500;
    padding: 10px 22px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease;
    z-index: 200;
    white-space: nowrap;
}

.icc-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 680px) {
    .icc-canvas-area {
        min-height: 260px;
        padding: 16px;
    }

    .icc-ctrl-divider {
        display: none;
    }

    .icc-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .icc-ctrl-group {
        border-bottom: 1px solid var(--icc-border);
    }

    .icc-ctrl-group--tolerance {
        min-width: 0;
    }

    .icc-download-section {
        border-left: none;
        border-top: 1px solid var(--icc-border);
    }
}

/* ── Accessibility — focus-visible ───────────────────────── */
.icc-upload-zone:focus-visible,
.icc-btn-add:focus-visible,
.icc-btn-primary:focus-visible,
.icc-btn-ghost:focus-visible,
.icc-btn-dl:focus-visible,
.icc-canvas-btn:focus-visible {
    outline: 3px solid var(--icc-accent);
    outline-offset: 2px;
}

.icc-toggle:focus-visible {
    outline: 3px solid var(--icc-accent);
    outline-offset: 3px;
}

.icc-color-input:focus-visible {
    outline: 3px solid var(--icc-accent);
    outline-offset: 2px;
    border-color: var(--icc-accent);
}

.icc-range:focus-visible {
    outline: none;
}

.icc-range:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 4px var(--icc-accent-ring);
}

.icc-rule-del:focus-visible {
    outline: 2px solid #EF4444;
    outline-offset: 2px;
}