/**
 * Image Tools Suite - Shared Styles
 * Tools for DJs - toolsfordjs.com
 */

/* CSS Reset and Base */
*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    /* Colors - Brand Theme Dark */
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-card: #1a1a1a;
    --bg-card-hover: #252525;
    --text-primary: #ffffff;
    --text-secondary: #bbbbbb;
    --text-muted: #666666;
    --accent-primary: #1255DD;
    --accent-primary-hover: #0e44b1;
    --accent-secondary: #00d4ff;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --border-color: #2a2a2a;
    --border-color-light: #333333;

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
}

/* Container */
.tool-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header */
.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.tool-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
}

.tool-header p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 1rem;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background-color: var(--bg-secondary);
    margin-bottom: var(--spacing-xl);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-primary);
    background-color: rgba(18, 85, 221, 0.05);
}

.upload-zone.drag-over {
    transform: scale(1.01);
}

.upload-zone-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.upload-zone h3 {
    margin: 0 0 var(--spacing-sm) 0;
    font-weight: 600;
}

.upload-zone p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
}

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

/* Main Layout */
.tool-main {
    display: none;
}

.tool-main.active {
    display: block;
}

.tool-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
}

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

/* Preview Area */
.preview-area {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.preview-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.preview-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    background: repeating-conic-gradient(#1a1a1a 0% 25%, #222222 0% 50%) 50% / 20px 20px;
    border-radius: var(--radius-md);
}

.preview-content img,
.preview-content canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Controls Panel */
.controls-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.control-group {
    margin-bottom: var(--spacing-lg);
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.control-group .hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Slider */
.slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.slider-container input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    cursor: pointer;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.slider-value {
    min-width: 50px;
    text-align: right;
    font-weight: 600;
    color: var(--accent-primary);
}

/* Stats Display */
.stats-display {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

.stat-row:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.stat-label {
    color: var(--text-secondary);
}

.stat-value {
    font-weight: 600;
    color: var(--text-primary);
}

.stat-value.positive {
    color: var(--accent-success);
}

.stat-value.negative {
    color: var(--accent-danger);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color-light);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-card-hover);
}

.btn-success {
    background-color: var(--accent-success);
    color: #ffffff;
}

.btn-success:hover:not(:disabled) {
    background-color: #0da06f;
}

.btn-block {
    width: 100%;
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-group .btn {
    flex: 1;
}

/* Aspect Ratio Buttons */
.aspect-ratio-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.aspect-btn {
    padding: var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.aspect-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.aspect-btn.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
}

/* Dimension Inputs */
.dimension-inputs {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.dimension-input {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.dimension-input label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
}

.dimension-input input {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    text-align: center;
}

.dimension-input input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.dimension-separator {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: 1.2rem;
}

/* Crop Overlay Styles */
.crop-container {
    position: relative;
    display: inline-block;
    cursor: crosshair;
}

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

.crop-selection {
    position: absolute;
    border: 2px solid var(--accent-primary);
    background: transparent;
    cursor: move;
    pointer-events: auto;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
}

.crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent-primary);
    border: 2px solid var(--text-primary);
    border-radius: 2px;
}

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

/* Grid Lines */
.crop-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.crop-grid-line {
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
}

.crop-grid-line.h1 { top: 33.33%; left: 0; right: 0; height: 1px; }
.crop-grid-line.h2 { top: 66.66%; left: 0; right: 0; height: 1px; }
.crop-grid-line.v1 { left: 33.33%; top: 0; bottom: 0; width: 1px; }
.crop-grid-line.v2 { left: 66.66%; top: 0; bottom: 0; width: 1px; }

/* Info Banner */
.info-banner {
    background-color: rgba(18, 85, 221, 0.1);
    border: 1px solid rgba(18, 85, 221, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.info-banner strong {
    color: var(--accent-primary);
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--accent-primary);
}

/* Divider */
.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* Loading State */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

/* Footer */
.tool-footer {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.tool-footer a {
    color: var(--accent-primary);
    text-decoration: none;
}

.tool-footer a:hover {
    text-decoration: underline;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ===== BatchQueue (shared multi-image UI) ===== */
.batch-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.batch-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.batch-header h2 {
    margin: 0;
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
}

.batch-header .file-count {
    color: #bbb;
    font-size: 0.95rem;
}

.batch-header .batch-actions {
    display: flex;
    gap: 0.5rem;
}

.file-row,
.result-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: #141414;
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.file-thumb {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border-radius: 6px;
    overflow: hidden;
    background: #1a1a1a;
}

.file-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.file-info-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.file-name {
    font-size: 0.95rem;
    color: #fff;
    word-break: break-all;
}

.file-size {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.85rem;
    color: #999;
}

.result-error {
    color: #ef4444;
    font-size: 0.9rem;
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

.btn-danger {
    background: #2a1414;
    border: 1px solid #5a2424;
    color: #f4a4a4;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn-danger:hover {
    background: #3a1818;
    border-color: #7a2828;
    color: #ffd0d0;
}

.progress-bar-container {
    background: #1a1a1a;
    border-radius: 8px;
    height: 12px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #1255DD, #4a8de8);
    border-radius: 8px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.85rem;
    color: #bbb;
    margin-top: 0.5rem;
}

.batch-stats {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.95rem;
    color: #10b981;
}

.batch-list-section h3 {
    margin: 0 0 0.75rem 0;
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #ddd;
}