/* ============================================================
   Image Pixelate Tool — Tool Styles
   Prefix: .ipx-*   Accent: #8B5CF6 (purple)
   ============================================================ */

/* ── CSS Variables ───────────────────────────────────────── */
.ipx-section {
    --ipx-accent: #8B5CF6;
    --ipx-accent-light: rgba(139, 92, 246, 0.10);
    --ipx-accent-ring: rgba(139, 92, 246, 0.30);
    --ipx-muted: #475569;
    --ipx-border: rgba(139, 92, 246, 0.12);
    --ipx-surface: #FFFFFF;
    --ipx-stage-bg: #F1F5F9;
    --ipx-radius: 14px;
    --ipx-radius-sm: 8px;

    padding: 40px 0 60px;
}

/* ── Upload Zone ─────────────────────────────────────────── */
.ipx-upload-zone {
    border: 2px dashed rgba(139, 92, 246, 0.35);
    border-radius: 16px;
    background: rgba(139, 92, 246, 0.04);
    padding: 56px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    outline: none;
}

.ipx-upload-zone:hover,
.ipx-upload-zone:focus,
.ipx-upload-zone.ipx-drag-over {
    border-color: var(--ipx-accent);
    background: rgba(139, 92, 246, 0.08);
}

.ipx-upload-icon {
    font-size: 3rem;
    color: var(--ipx-accent);
    opacity: 0.7;
    margin-bottom: 14px;
    display: block;
}

.ipx-upload-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.ipx-upload-sub {
    font-size: 0.9375rem;
    color: var(--ipx-muted);
    margin: 0;
}

/* ── 2-col Workspace ─────────────────────────────────────── */
.ipx-workspace {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 28px;
}

/* ── Left Panel ──────────────────────────────────────────── */
.ipx-left {
    background: var(--ipx-surface);
    border: 1px solid var(--ipx-border);
    border-radius: var(--ipx-radius);
    overflow: hidden;
    overflow-y: auto;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.ipx-ctrl-group {
    padding: 14px 18px;
    border-bottom: 1px solid var(--ipx-border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ipx-ctrl-group:last-child {
    border-bottom: none;
}

.ipx-ctrl-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ipx-muted);
    margin: 0;
}

/* ── Slider ──────────────────────────────────────────────── */
.ipx-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(139, 92, 246, 0.18);
    outline: none;
    cursor: pointer;
}

.ipx-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ipx-accent);
    border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
    cursor: pointer;
}

.ipx-marks {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--ipx-muted);
}

.ipx-val-badge {
    display: inline-block;
    background: rgba(139, 92, 246, 0.12);
    color: var(--ipx-accent);
    border-radius: 4px;
    padding: 1px 7px;
    font-size: 0.8125rem;
    font-family: monospace;
    font-weight: 700;
}

/* ── Coverage tabs (pill chips) ──────────────────────────── */
.ipx-coverage-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.ipx-tab {
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.3);
    background: transparent;
    color: var(--ipx-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
}

.ipx-tab:hover {
    border-color: var(--ipx-accent);
    color: var(--ipx-accent);
}

.ipx-tab.active,
.ipx-tab.active:hover {
    background: var(--ipx-accent);
    border-color: var(--ipx-accent);
    color: #fff;
}

/* ── Buttons ─────────────────────────────────────────────── */
.ipx-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--ipx-radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.18s;
    width: 100%;
}

.ipx-btn-primary {
    background: var(--ipx-accent);
    color: #fff;
    border-color: var(--ipx-accent);
}

.ipx-btn-primary:hover {
    background: #7C3AED;
    border-color: #7C3AED;
}

.ipx-btn-ghost {
    background: transparent;
    border-color: rgba(139, 92, 246, 0.25);
    color: var(--ipx-muted);
}

.ipx-btn-ghost:hover {
    border-color: var(--ipx-accent);
    color: var(--ipx-accent);
}

/* ── Download Section ────────────────────────────────────── */
.ipx-download-section {
    padding: 14px 18px;
    border-top: 1px solid var(--ipx-border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ipx-download-btns {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ipx-btn-dl {
    background: var(--ipx-accent);
    color: #fff;
    border-color: var(--ipx-accent);
}

.ipx-btn-dl:hover {
    background: #7C3AED;
    border-color: #7C3AED;
}

/* ── Right Panel ─────────────────────────────────────────── */
.ipx-right {
    background: var(--ipx-surface);
    border: 1px solid var(--ipx-border);
    border-radius: var(--ipx-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 80px;
}

/* ── Canvas Area ─────────────────────────────────────────── */
.ipx-canvas-area {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ipx-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: 420px;
    max-height: 520px;
    overflow: auto;
    padding: 24px;
    flex: 1;
}

.ipx-canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    user-select: none;
}

.ipx-canvas--draw {
    cursor: crosshair;
}

/* ── Canvas Toolbar ──────────────────────────────────────── */
.ipx-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid var(--ipx-border);
    background: var(--ipx-surface);
    gap: 10px;
    flex-shrink: 0;
}

.ipx-canvas-hint {
    font-size: 0.8125rem;
    color: var(--ipx-muted);
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.ipx-toolbar-btns {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.ipx-canvas-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid rgba(139, 92, 246, 0.25);
    background: transparent;
    color: var(--ipx-muted);
    transition: all 0.18s;
    white-space: nowrap;
}

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

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
    .ipx-workspace {
        grid-template-columns: 1fr;
    }

    .ipx-right {
        position: static;
        order: -1;
    }

    .ipx-left {
        max-height: none;
    }
}