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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #7c3aed;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    min-height: 100vh;
    color: var(--gray-900);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(8px);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay p {
    margin-top: 20px;
    font-size: 16px;
    color: var(--gray-700);
    font-weight: 500;
}

.hidden {
    display: none !important;
}

.header {
    background: white;
    padding: 24px 32px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.subtitle {
    font-size: 14px;
    color: var(--gray-500);
    margin: 0;
}

.upload-section {
    margin-bottom: 24px;
}

.upload-container {
    background: white;
    border-radius: 16px;
    padding: 48px;
    box-shadow: var(--shadow);
}

.upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: 12px;
    padding: 64px 32px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--gray-50);
}

.upload-area:hover {
    border-color: var(--primary);
    background: #eff6ff;
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: #dbeafe;
    transform: scale(1.01);
}

.upload-icon {
    margin: 0 auto 24px;
    opacity: 0.8;
}

.upload-area h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.upload-description {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 4px;
}

.upload-formats {
    font-size: 14px;
    color: var(--gray-500);
}

.security-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    padding: 12px;
    background: #f0fdf4;
    border-radius: 8px;
    font-size: 14px;
    color: var(--success);
    font-weight: 500;
}

.quick-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.btn svg {
    width: 16px;
    height: 16px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 24px;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-count {
    background: #eff6ff;
    color: var(--primary);
}

.image-preview-container {
    padding: 24px;
    text-align: center;
    background: var(--gray-50);
}

.image-preview-container img {
    max-width: 100%;
    max-height: 400px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.image-details {
    padding: 20px 24px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
}

.detail-value {
    color: var(--gray-900);
    font-size: 14px;
    text-align: right;
    word-break: break-word;
}

.metadata-grid {
    padding: 20px 24px;
    display: grid;
    gap: 12px;
}

.metadata-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 16px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 8px;
    border-left: 3px solid var(--primary);
}

.metadata-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

.metadata-value {
    font-size: 13px;
    color: var(--gray-900);
    word-break: break-word;
}

.metadata-scroll {
    max-height: 500px;
    overflow-y: auto;
    padding: 20px 24px;
}

.metadata-scroll::-webkit-scrollbar {
    width: 8px;
}

.metadata-scroll::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

.metadata-scroll::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

.metadata-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

.no-data {
    padding: 40px 20px;
    text-align: center;
    color: var(--gray-400);
    font-style: italic;
    font-size: 14px;
}

.gps-grid {
    padding: 20px 24px;
    display: grid;
    gap: 12px;
}

.gps-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 8px;
}

.gps-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
}

.gps-value {
    color: var(--gray-900);
    font-size: 14px;
}

.map-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px 20px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.map-link:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

@media (max-width: 768px) {
    .container {
        padding: 12px;
    }
    
    .header {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .upload-container {
        padding: 32px 20px;
    }
    
    .upload-area {
        padding: 48px 20px;
    }
    
    .quick-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .metadata-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-area {
    animation: fadeIn 0.4s ease;
}