* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8b5cf6;
    --primary-dark: #7c3aed;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    opacity: 0.9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.upload-section {
    margin-bottom: 2rem;
}

.drop-zone {
    background: var(--card-bg);
    border: 3px dashed var(--border-color);
    border-radius: 16px;
    padding: 4rem 2rem;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--primary-color);
    background: rgba(139, 92, 246, 0.05);
    transform: scale(1.02);
}

.drop-zone-content {
    pointer-events: none;
}

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

.drop-text {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.drop-text-sub {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.file-label {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    pointer-events: all;
}

.file-label:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.supported-formats {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.options-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.options-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.option-card {
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.option-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.option-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.option-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
}

.slider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
}

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

.select-field {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    margin-top: 0.5rem;
    background: white;
}

.images-section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h2 {
    font-size: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

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

.images-list {
    display: grid;
    gap: 1.5rem;
}

.image-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 200px 1fr auto;
    gap: 1.5rem;
    align-items: center;
}

.image-preview {
    width: 200px;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
}

.image-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.image-stats {
    display: flex;
    gap: 1.5rem;
    margin-top: 0.75rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-item-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

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

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

.btn-download {
    padding: 0.75rem 1.5rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-download:hover {
    background: #059669;
    transform: scale(1.05);
}

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

.stats-section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.stat-card {
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-number.stat-success {
    color: var(--success-color);
}

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

.processing {
    opacity: 0.6;
    pointer-events: none;
}

@media (max-width: 768px) {
    .image-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .image-preview {
        width: 100%;
        height: 200px;
    }

    .image-stats {
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}