/* قاعدة عامة لصفحات الأدوات المنفصلة */
.tool-page {
    margin-top: 80px;
}

.tool-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 60px 0;
}

.tool-hero h1 {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
}

.tool-hero p {
    opacity: 0.95;
}

.tool-highlights {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem 1rem;
    list-style: none;
}

.tool-highlights li i {
    color: #ffd700;
    margin-left: 8px;
}

.tool-content {
    padding: 40px 0;
}

.tool-article {
    margin-top: 30px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #eee;
    padding: 24px;
}

.tool-article h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.tool-article h3 {
    margin-top: 1rem;
}

/* ثيمات لكل أداة */
.tool-image-compressor .tool-hero { background: linear-gradient(135deg, #2ecc71 0%, #20c997 100%); }
.tool-pdf-converter .tool-hero { background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%); }
.tool-color-picker .tool-hero { background: linear-gradient(135deg, #8e44ad 0%, #9b59b6 100%); }

/* Color Picker layout */
.color-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
}

.color-picker-block {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    padding: 16px;
}

.preview-box {
    margin-top: 12px;
    width: 100%;
    height: 140px;
    border-radius: 10px;
    border: 2px solid #e5e7eb;
}

.color-fields .field-row {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.field-actions {
    display: grid;
    grid-template-columns: 1fr 44px;
    gap: 8px;
}

.field-actions input {
    padding: 12px 14px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
}

.field-actions .copy-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: 0;
    border-radius: 10px;
}

.actions-row {
    margin-top: 8px;
}

.actions-row button {
    background: #2c3e50;
    color: #fff;
    border: 0;
    padding: 10px 14px;
    border-radius: 10px;
}

.color-contrast .contrast-rows {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.contrast-item {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 12px;
}

.contrast-sample {
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    border: 1px solid #eee;
}

.contrast-sample.dark {
    background: #000;
    color: #fff;
}

.swatches {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    gap: 10px;
}

.swatch {
    width: 100%;
    padding-top: 100%;
    border-radius: 8px;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    cursor: pointer;
}

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

@media (max-width: 768px) {
    .tool-hero { padding: 40px 0; }
    .tool-hero h1 { font-size: 1.8rem; }
}

/* Background Generator Styles */
.upload-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    color: white;
    text-align: center;
}

.upload-area {
    border: 3px dashed rgba(255,255,255,0.3);
    border-radius: 15px;
    padding: 3rem 2rem;
    margin: 1rem 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: #fff;
    background: rgba(255,255,255,0.2);
    transform: scale(1.02);
}

.upload-content {
    pointer-events: none;
}

.upload-content i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.upload-content p {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.upload-content small {
    opacity: 0.8;
    font-size: 0.9rem;
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.image-preview {
    margin-top: 1rem;
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.image-preview img {
    max-width: 200px;
    max-height: 150px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    margin-bottom: 1rem;
}

.preview-info {
    text-align: left;
}

.preview-info p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.settings-section {
    background: #fff;
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.setting-group {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.setting-group:hover {
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.1);
}

.setting-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #495057;
}

.setting-group input[type="range"] {
    width: 100%;
    margin: 0.5rem 0;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: #e9ecef;
    outline: none;
}

.setting-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.setting-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.setting-group select,
.setting-group input[type="color"],
.setting-group input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.setting-group select:focus,
.setting-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.generate-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.reset-btn {
    background: #6c757d;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reset-btn:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.result-area {
    background: #fff;
    border-radius: 20px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    animation: slideInUp 0.6s ease-out;
}

.result-content h3 {
    color: #28a745;
    margin-bottom: 1.5rem;
    text-align: center;
}

.result-preview {
    margin: 2rem 0;
    text-align: center;
}

.background-preview {
    width: 100%;
    max-width: 600px;
    height: 300px;
    border-radius: 15px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: 3px solid #e9ecef;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.download-btn {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.4);
}

.copy-btn {
    background: linear-gradient(135deg, #17a2b8 0%, #6f42c1 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 5px 15px rgba(23, 162, 184, 0.3);
}

.copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(23, 162, 184, 0.4);
}

/* Background Generator Responsive */
@media (max-width: 768px) {
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-content i {
        font-size: 2rem;
    }
    
    .upload-content p {
        font-size: 1rem;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .setting-group {
        padding: 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .generate-btn,
    .reset-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .result-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .download-btn,
    .copy-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .background-preview {
        height: 200px;
    }
}

/* Animation for settings groups */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.setting-group {
    animation: fadeInUp 0.6s ease-out;
}

.setting-group:nth-child(1) { animation-delay: 0.1s; }
.setting-group:nth-child(2) { animation-delay: 0.2s; }
.setting-group:nth-child(3) { animation-delay: 0.3s; }
.setting-group:nth-child(4) { animation-delay: 0.4s; }

/* Background Remover Styles */
.processing-status {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 3rem 2rem;
    margin: 2rem 0;
    color: white;
    text-align: center;
    animation: slideInUp 0.6s ease-out;
}

.status-content {
    max-width: 500px;
    margin: 0 auto;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.3);
    border-radius: 4px;
    margin-top: 1rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: white;
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.comparison-view {
    margin: 2rem 0;
}

.image-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.original-image,
.processed-image {
    text-align: center;
}

.original-image h4,
.processed-image h4 {
    margin-bottom: 1rem;
    color: #495057;
    font-size: 1.1rem;
}

.image-container {
    border: 3px solid #e9ecef;
    border-radius: 15px;
    padding: 1rem;
    background: #f8f9fa;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.processed-image .image-container {
    background: 
        linear-gradient(45deg, #ccc 25%, transparent 25%), 
        linear-gradient(-45deg, #ccc 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #ccc 75%), 
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.preview-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.3);
}

.preview-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

.background-preview {
    margin-top: 2rem;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
    border: 2px solid #e9ecef;
}

.background-preview h4 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #495057;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

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

.preview-bg {
    width: 100%;
    height: 150px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    border: 2px solid #e9ecef;
    overflow: hidden;
}

.preview-bg img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.white-bg {
    background: white;
}

.black-bg {
    background: #000;
}

.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.preview-item p {
    font-size: 0.9rem;
    color: #6c757d;
    margin: 0;
}

/* Enhanced Range Sliders */
.setting-group input[type="range"] {
    background: linear-gradient(to right, #667eea 0%, #667eea var(--value, 0%), #e9ecef var(--value, 0%), #e9ecef 100%);
}

.setting-group input[type="range"]::-webkit-slider-thumb {
    background: #667eea;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.setting-group input[type="range"]::-moz-range-thumb {
    background: #667eea;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* Method-specific styling */
#aiSettings {
    border-left: 4px solid #28a745;
}

#colorSettings {
    border-left: 4px solid #ffc107;
}

#edgeSettings {
    border-left: 4px solid #17a2b8;
}

#manualSettings {
    border-left: 4px solid #dc3545;
}

/* Responsive Design for Background Remover */
@media (max-width: 768px) {
    .image-comparison {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .preview-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .preview-bg {
        height: 120px;
    }
    
    .processing-status {
        padding: 2rem 1rem;
    }
    
    .spinner {
        width: 40px;
        height: 40px;
    }
}

/* Animation for method switching */
@keyframes methodSwitch {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.setting-group {
    animation: methodSwitch 0.5s ease-out;
}

/* Enhanced button hover effects */
.generate-btn:active {
    transform: scale(0.98);
}

.reset-btn:active {
    transform: scale(0.98);
}

.download-btn:active {
    transform: scale(0.98);
}

.copy-btn:active {
    transform: scale(0.98);
}

.preview-btn:active {
    transform: scale(0.98);
}