/* =========================================
   ConvertKr – Shared Tool Page Styles
   Uses ckr- prefix, inherits hero.css vars
   ========================================= */

/* ─── Tool Page Layout ─── */
.ckr-tool-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    min-height: 80vh;
}

.ckr-tool-header {
    text-align: center;
    margin-bottom: 40px;
}

.ckr-tool-header h1 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--hero-text-heading);
    letter-spacing: -0.8px;
    margin-bottom: 10px;
}

.ckr-tool-header p {
    font-size: 16px;
    color: var(--hero-text-muted);
    line-height: 1.6;
    max-width: 520px;
    margin: 0 auto;
}

/* ─── Upload / Drop Zone ─── */
.ckr-upload-zone {
    border: 2px dashed var(--hero-border-strong);
    border-radius: var(--hero-radius-lg);
    padding: 60px 32px;
    text-align: center;
    cursor: pointer;
    transition: all var(--hero-transition);
    background: var(--hero-bg-alt);
    position: relative;
}

.ckr-upload-zone:hover,
.ckr-upload-zone.dragover {
    border-color: var(--hero-primary);
    background: var(--hero-primary-light);
}

.ckr-upload-zone.dragover {
    box-shadow: 0 0 0 4px var(--hero-primary-glow);
}

.ckr-upload-zone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 16px;
    background: var(--hero-primary-light);
    color: var(--hero-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ckr-upload-zone h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--hero-text-heading);
    margin-bottom: 8px;
}

.ckr-upload-zone p {
    font-size: 14px;
    color: var(--hero-text-muted);
    margin-bottom: 20px;
}

.ckr-upload-zone input[type="file"] {
    display: none;
}

.ckr-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    background: var(--hero-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--hero-transition);
    font-family: inherit;
}

.ckr-upload-btn:hover {
    background: var(--hero-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(79,70,229,0.25);
}

.ckr-upload-formats {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ckr-format-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 50px;
    background: var(--hero-surface);
    color: var(--hero-text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── Controls Panel ─── */
.ckr-controls {
    display: none;
    background: var(--hero-bg);
    border: 1px solid var(--hero-border);
    border-radius: var(--hero-radius-lg);
    padding: 24px;
    margin-top: 24px;
}

.ckr-controls.visible {
    display: block;
}

.ckr-controls-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--hero-text-heading);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ckr-control-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.ckr-control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 140px;
}

.ckr-control-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--hero-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ckr-control-group select,
.ckr-control-group input[type="number"],
.ckr-control-group input[type="text"] {
    padding: 8px 12px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    background: var(--hero-bg);
    color: var(--hero-text);
    transition: border-color var(--hero-transition);
}

.ckr-control-group select:focus,
.ckr-control-group input:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

.ckr-control-group input[type="range"] {
    width: 100%;
    accent-color: var(--hero-primary);
}

.ckr-range-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ckr-range-row input[type="range"] {
    flex: 1;
}

.ckr-range-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--hero-text-secondary);
    min-width: 36px;
    text-align: right;
}

/* ─── Preview Container ─── */
.ckr-preview {
    display: none;
    margin-top: 24px;
    border: 1px solid var(--hero-border);
    border-radius: var(--hero-radius-lg);
    overflow: hidden;
    background: var(--hero-bg-alt);
}

.ckr-preview.visible {
    display: block;
}

.ckr-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--hero-border);
    background: var(--hero-bg);
}

.ckr-preview-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--hero-text-heading);
}

.ckr-preview-info {
    font-size: 12px;
    color: var(--hero-text-muted);
    font-weight: 500;
}

.ckr-preview-body {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.ckr-preview-body img,
.ckr-preview-body canvas {
    max-width: 100%;
    max-height: 500px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* Thumbnail grid for multi-file/multi-page */
.ckr-thumb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    padding: 24px;
    width: 100%;
}

.ckr-thumb-item {
    background: var(--hero-bg);
    border: 1px solid var(--hero-border);
    border-radius: var(--hero-radius);
    overflow: hidden;
    transition: all var(--hero-transition);
}

.ckr-thumb-item:hover {
    border-color: var(--hero-primary);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.ckr-thumb-item img,
.ckr-thumb-item canvas {
    width: 100%;
    height: 140px;
    object-fit: contain;
    background: #f8f9fb;
    display: block;
}

.ckr-thumb-item-info {
    padding: 8px 10px;
    font-size: 11px;
    color: var(--hero-text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--hero-border);
}

.ckr-thumb-item-info .name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100px;
    font-weight: 600;
    color: var(--hero-text-secondary);
}

.ckr-thumb-download {
    background: none;
    border: none;
    color: var(--hero-primary);
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
}

.ckr-thumb-download:hover {
    color: var(--hero-primary-hover);
}

/* ─── Size Comparison ─── */
.ckr-size-compare {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px 20px;
    margin-top: 16px;
    background: var(--hero-bg);
    border: 1px solid var(--hero-border);
    border-radius: var(--hero-radius);
    flex-wrap: wrap;
}

.ckr-size-compare.visible {
    display: flex;
}

.ckr-size-box {
    text-align: center;
}

.ckr-size-box .label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--hero-text-muted);
    margin-bottom: 4px;
}

.ckr-size-box .value {
    font-size: 20px;
    font-weight: 800;
    color: var(--hero-text-heading);
}

.ckr-size-arrow {
    font-size: 20px;
    color: var(--hero-border-strong);
}

.ckr-size-saved {
    padding: 4px 12px;
    border-radius: 50px;
    background: #f0fdf4;
    color: var(--hero-success);
    font-size: 13px;
    font-weight: 700;
}

/* ─── Action Buttons ─── */
.ckr-actions {
    display: none;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.ckr-actions.visible {
    display: flex;
}

.ckr-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: all var(--hero-transition);
}

.ckr-btn-primary {
    background: var(--hero-primary);
    color: #fff;
    box-shadow: 0 1px 3px rgba(79,70,229,0.2), 0 4px 12px rgba(79,70,229,0.15);
}

.ckr-btn-primary:hover {
    background: var(--hero-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(79,70,229,0.25), 0 8px 24px rgba(79,70,229,0.2);
}

.ckr-btn-secondary {
    background: var(--hero-surface);
    color: var(--hero-text-secondary);
    border: 1px solid var(--hero-border-strong);
}

.ckr-btn-secondary:hover {
    background: var(--hero-surface-hover);
    color: var(--hero-text-heading);
}

.ckr-btn-success {
    background: var(--hero-success);
    color: #fff;
}

.ckr-btn-success:hover {
    background: #15803d;
    transform: translateY(-1px);
}

/* ─── Processing Spinner ─── */
.ckr-processing {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px;
    gap: 16px;
}

.ckr-processing.visible {
    display: flex;
}

.ckr-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--hero-border);
    border-top-color: var(--hero-primary);
    border-radius: 50%;
    animation: ckr-spin 0.8s linear infinite;
}

@keyframes ckr-spin {
    to { transform: rotate(360deg); }
}

.ckr-processing p {
    font-size: 14px;
    color: var(--hero-text-muted);
    font-weight: 500;
}

/* ─── Crop Tool Specific ─── */
.ckr-crop-container {
    position: relative;
    display: inline-block;
    max-width: 100%;
    cursor: crosshair;
}

.ckr-crop-container img {
    display: block;
    max-width: 100%;
    max-height: 500px;
    box-shadow: none;
    border-radius: 0;
}

.ckr-crop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.ckr-crop-box {
    position: absolute;
    border: 2px solid var(--hero-primary);
    box-shadow: 0 0 0 9999px rgba(0,0,0,0.45);
    cursor: move;
    pointer-events: all;
}

.ckr-crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff;
    border: 2px solid var(--hero-primary);
    border-radius: 2px;
    pointer-events: all;
}

.ckr-crop-handle.nw { top: -5px; left: -5px; cursor: nw-resize; }
.ckr-crop-handle.n  { top: -5px; left: 50%; margin-left: -5px; cursor: n-resize; }
.ckr-crop-handle.ne { top: -5px; right: -5px; cursor: ne-resize; }
.ckr-crop-handle.e  { top: 50%; margin-top: -5px; right: -5px; cursor: e-resize; }
.ckr-crop-handle.se { bottom: -5px; right: -5px; cursor: se-resize; }
.ckr-crop-handle.s  { bottom: -5px; left: 50%; margin-left: -5px; cursor: s-resize; }
.ckr-crop-handle.sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.ckr-crop-handle.w  { top: 50%; margin-top: -5px; left: -5px; cursor: w-resize; }

/* Aspect ratio presets */
.ckr-aspect-presets {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ckr-aspect-btn {
    padding: 6px 14px;
    border-radius: 8px;
    border: 1px solid var(--hero-border-strong);
    background: var(--hero-bg);
    color: var(--hero-text-secondary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--hero-transition);
}

.ckr-aspect-btn:hover {
    border-color: var(--hero-primary);
    color: var(--hero-primary);
}

.ckr-aspect-btn.active {
    background: var(--hero-primary);
    color: #fff;
    border-color: var(--hero-primary);
}

/* ─── Watermark Position Grid ─── */
.ckr-position-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    max-width: 180px;
}

.ckr-pos-btn {
    padding: 8px 4px;
    border-radius: 6px;
    border: 1px solid var(--hero-border-strong);
    background: var(--hero-bg);
    color: var(--hero-text-muted);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--hero-transition);
    text-align: center;
    letter-spacing: 0.5px;
}

.ckr-pos-btn:hover {
    border-color: var(--hero-primary);
    color: var(--hero-primary);
}

.ckr-pos-btn.active {
    background: var(--hero-primary);
    color: #fff;
    border-color: var(--hero-primary);
}

/* ─── Watermark Mini Upload ─── */
.ckr-wm-upload-mini {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 16px;
    border: 1px dashed var(--hero-border-strong);
    border-radius: 10px;
    background: var(--hero-bg-alt);
    transition: border-color var(--hero-transition);
}

.ckr-wm-upload-mini:hover {
    border-color: var(--hero-primary);
}

/* ─── Watermark Select ─── */
.ckr-select {
    padding: 8px 12px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    background: var(--hero-bg);
    color: var(--hero-text);
    transition: border-color var(--hero-transition);
    cursor: pointer;
}

.ckr-select:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

/* ─── Watermark Text Input ─── */
.ckr-text-input {
    padding: 10px 14px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--hero-bg);
    color: var(--hero-text);
    transition: border-color var(--hero-transition);
    width: 100%;
    box-sizing: border-box;
}

.ckr-text-input:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

/* ─── Watermark Color Input ─── */
.ckr-color-input {
    width: 48px;
    height: 40px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    padding: 3px;
    cursor: pointer;
    background: var(--hero-bg);
}

.ckr-color-input:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

/* ─── Draggable Items ─── */
.ckr-thumb-item[draggable="true"] {
    cursor: grab;
}

.ckr-thumb-item[draggable="true"]:active {
    cursor: grabbing;
}

.ckr-thumb-item.dragging {
    opacity: 0.4;
}

/* ─── QR Code Output ─── */
#ckr-qr-output {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
}

#ckr-qr-output canvas,
#ckr-qr-output img {
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* ─── QR Controls (always visible) ─── */
.ckr-control-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--hero-bg);
    color: var(--hero-text);
    transition: border-color var(--hero-transition);
    resize: vertical;
    width: 100%;
    box-sizing: border-box;
}

.ckr-control-group textarea:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

.ckr-control-group input[type="color"] {
    width: 48px;
    height: 36px;
    border: 1px solid var(--hero-border-strong);
    border-radius: 8px;
    padding: 2px;
    cursor: pointer;
    background: var(--hero-bg);
}

.ckr-control-group input[type="color"]:focus {
    outline: none;
    border-color: var(--hero-primary);
    box-shadow: 0 0 0 3px var(--hero-primary-glow);
}

/* ─── Background Remover Compare ─── */
.ckr-compare {
    display: flex;
    gap: 24px;
    padding: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.ckr-compare-side {
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.ckr-compare-side .ckr-compare-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--hero-text-muted);
    margin-bottom: 10px;
}

.ckr-compare-side img {
    max-width: 100%;
    max-height: 400px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    object-fit: contain;
}

/* Checkerboard background for transparent images */
.ckr-compare-side .ckr-checkerboard {
    background-image: linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
                      linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
                      linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
                      linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    border-radius: 8px;
    display: inline-block;
}

.ckr-compare-side .ckr-checkerboard img {
    box-shadow: none;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .ckr-tool-page {
        padding: 100px 16px 60px;
    }

    .ckr-upload-zone {
        padding: 40px 20px;
    }

    .ckr-control-row {
        flex-direction: column;
        gap: 12px;
    }

    .ckr-control-group {
        width: 100%;
    }

    .ckr-thumb-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
        padding: 16px;
    }

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

    .ckr-btn {
        width: 100%;
    }

    .ckr-compare {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .ckr-tool-page {
        padding: 90px 12px 40px;
    }

    .ckr-upload-zone {
        padding: 32px 16px;
    }

    .ckr-controls {
        padding: 16px;
    }
}