/* Upscaler Specific Styles */
.upscaler-hero {
    text-align: center;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

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

.upload-container {
    max-width: 700px;
    margin: 0 auto;
}

.upload-area {
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--hover-bg);
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.02);
}

.upload-content {
    position: relative;
    z-index: 2;
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.upload-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.upload-formats {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.format-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

/* Scale Selection */
.scale-selection {
    margin-top: 2rem;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.scale-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.scale-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.scale-option {
    cursor: pointer;
}

.scale-option input[type="radio"] {
    display: none;
}

.scale-card {
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.scale-option input[type="radio"]:checked + .scale-card {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.scale-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.scale-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.scale-info h5 {
    margin: 0 0 0.25rem 0;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Preview Section */
.preview-section {
    margin-bottom: 3rem;
}

.preview-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.preview-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.change-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

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

.preview-content {
    margin-bottom: 2rem;
}

.image-preview {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: start;
}

.image-preview img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    object-fit: contain;
}

.image-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 200px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

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

.upscale-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.upscale-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.upscale-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Processing Section */
.processing-section {
    text-align: center;
    padding: 3rem 0;
}

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

.processing-animation {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
}

.magic-wand {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: var(--primary-color);
    animation: wand-glow 2s ease-in-out infinite;
}

@keyframes wand-glow {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.5));
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.1);
        filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.8));
    }
}

.processing-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: particle-float 3s ease-in-out infinite;
}

.particle:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 20%;
    right: 20%;
    animation-delay: 0.5s;
}

.particle:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 1s;
}

.particle:nth-child(4) {
    bottom: 20%;
    right: 20%;
    animation-delay: 1.5s;
}

@keyframes particle-float {
    0%, 100% { 
        transform: translateY(0) scale(1);
        opacity: 0.7;
    }
    50% { 
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }
}

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

.processing-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    width: 0%;
    animation: progress-fill 10s ease-in-out infinite;
}

@keyframes progress-fill {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.processing-note {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Result Section */
.result-section {
    text-align: center;
    padding: 3rem 0;
}

.result-container {
    max-width: 500px;
    margin: 0 auto;
}

.result-header {
    margin-bottom: 2rem;
}

.success-icon {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 1rem;
}

.result-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.result-subtitle {
    color: var(--text-secondary);
    margin-bottom: 0;
}

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

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 1rem;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.new-upscale-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.new-upscale-btn:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Error Section */
.error-section {
    text-align: center;
    padding: 3rem 0;
}

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

.error-icon {
    font-size: 4rem;
    color: #ef4444;
    margin-bottom: 1rem;
}

.error-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.error-message {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.retry-btn, .new-image-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.retry-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

.new-image-btn {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

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

.features-title {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: white;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* Use Cases Section */
.use-cases-section {
    margin-bottom: 3rem;
}

.use-cases-title {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

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

.use-case-item {
    text-align: center;
    padding: 1rem;
}

.use-case-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.use-case-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.use-case-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-icon {
        font-size: 3rem;
    }
    
    .scale-options {
        grid-template-columns: 1fr;
    }
    
    .image-preview {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .preview-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .result-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .error-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .upload-area {
        padding: 1.5rem 1rem;
    }
    
    .scale-selection {
        padding: 1.5rem;
    }
    
    .preview-container {
        padding: 1.5rem;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .format-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
}