/* Background Remover Styles */
.background-remover-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.page-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Upload Section */
.upload-section {
    margin-bottom: 3rem;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    background: var(--card-bg);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--hover-bg);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: scale(1.02);
}

.upload-content svg {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.upload-content p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.file-info {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Processing Section */
.processing-section {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 2rem;
}

.processing-animation {
    margin-bottom: 1.5rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.processing-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.processing-section p {
    color: var(--text-secondary);
}

/* Results Section */
.results-section {
    margin-bottom: 3rem;
}

.results-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

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

.image-panel h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
    text-align: center;
}

.image-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    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;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 8px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
}

/* Features Section */
.features-section {
    margin-bottom: 3rem;
}

.features-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
    text-align: center;
    margin-bottom: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
}

.feature-icon {
    margin-bottom: 1rem;
}

.feature-icon svg {
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* SEO Description Section */
.seo-description-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.seo-description-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.seo-description-section p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.seo-description-section strong {
    color: var(--text-color);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-description {
        font-size: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .image-comparison {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .background-remover-container {
        padding: 1rem 0.5rem;
    }
    
    .page-header {
        margin-bottom: 2rem;
    }
    
    .page-header h1 {
        font-size: 1.8rem;
    }
    
    .upload-area {
        padding: 1.5rem 1rem;
    }
    
    .results-container {
        padding: 1rem;
    }
    
    .seo-description-section {
        padding: 1.5rem;
    }
}

/* Dark Theme Adjustments */
body.dark-theme .image-container {
    background: 
        linear-gradient(45deg, #444 25%, transparent 25%), 
        linear-gradient(-45deg, #444 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #444 75%), 
        linear-gradient(-45deg, transparent 75%, #444 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* Loading States */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
}

/* Success Animation */
@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.success-animation {
    animation: successPulse 0.6s ease-in-out;
}