@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Framer.com Professional Dark Theme */
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #2A2A2A;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1A1;
    --text-tertiary: #6B6B6B;
    --accent-primary: #0066FF;
    --accent-hover: #0052CC;
    --accent-secondary: #00D4FF;
    --border-light: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --border-accent: rgba(0, 102, 255, 0.3);
    --success: #00C853;
    --danger: #FF4444;
    --warning: #FFB300;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(0, 102, 255, 0.3);
    --shadow-glow-white: 0 0 15px rgba(255, 255, 255, 0.2);
    --shadow-glow-white-intense: 0 0 25px rgba(255, 255, 255, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --spacing: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--spacing) * 3);
    min-height: 100vh;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: calc(var(--spacing) * 4);
    padding-bottom: calc(var(--spacing) * 3);
    border-bottom: 1px solid var(--border-light);
}

.header-left {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
}

.logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1.5);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-left: calc(var(--spacing) * 3);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
}

.view-toggle {
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.view-btn {
    background: none;
    border: none;
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.2s ease;
}

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

.logout-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 2);
    cursor: pointer;
    color: #C0C0C0;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow-white);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    box-shadow: var(--shadow-glow-white-intense);
    transform: translateY(-2px);
}

.main-content {
    display: grid;
    gap: calc(var(--spacing) * 3);
}

.upload-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 3);
}

.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing) * 2);
}

.drop-zone {
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 8);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
}

.drop-zone:hover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.drop-zone.dragover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
    border-style: solid;
    box-shadow: var(--shadow-glow);
    transform: scale(1.02);
}

.drop-icon {
    font-size: 48px;
    color: var(--text-tertiary);
    margin-bottom: calc(var(--spacing) * 2);
}

.drop-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing) * 1);
}

.drop-subtext {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing) * 3);
}

.upload-btn {
    background: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 3);
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.3);
}

.upload-btn:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.6);
    transform: translateY(-2px);
}

.file-input {
    display: none;
}

/* Filename Control Styles */
.filename-control {
    margin-top: calc(var(--spacing) * 2);
    padding: calc(var(--spacing) * 2);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.filename-label {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
}

.filename-label input[type="checkbox"] {
    cursor: pointer;
}

.filename-input-wrapper {
    margin-top: calc(var(--spacing) * 2);
}

.filename-input {
    width: 100%;
    padding: calc(var(--spacing) * 1.5);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.filename-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.filename-hint {
    display: block;
    margin-top: calc(var(--spacing) * 0.5);
    font-size: 12px;
    color: var(--text-secondary);
}

.filename-preview {
    margin-top: calc(var(--spacing) * 1);
    padding: calc(var(--spacing) * 1);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
}

.filename-preview strong {
    color: var(--text-secondary);
    font-weight: 600;
}

#previewText {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-primary);
    font-weight: 500;
}

.progress-section {
    margin-top: calc(var(--spacing) * 3);
    display: none;
}

.progress-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--spacing) * 2);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    margin-bottom: calc(var(--spacing) * 1);
}

.progress-info {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
}

.progress-icon {
    width: 24px;
    height: 24px;
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

.progress-details {
    font-size: 14px;
    color: var(--text-primary);
}

.progress-bar {
    width: 200px;
    height: 4px;
    background: var(--border-light);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.files-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 3);
}

.files-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: calc(var(--spacing) * 3);
}

.search-controls {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
}

.search-input {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    font-size: 14px;
    color: var(--text-primary);
    width: 200px;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-select {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    min-width: 120px;
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: calc(var(--spacing) * 2);
}

.files-list {
    display: none;
    flex-direction: column;
    gap: calc(var(--spacing) * 1);
}

.file-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 2);
    transition: all 0.2s ease;
    cursor: pointer;
}

.file-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-sm);
}

.file-preview {
    width: 100%;
    height: 120px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: calc(var(--spacing) * 2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-tertiary);
    overflow: hidden;
}

.file-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.file-info {
    margin-bottom: calc(var(--spacing) * 2);
}

.file-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing) * 0.5);
    word-break: break-word;
}

.file-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}

.file-actions {
    display: flex;
    gap: calc(var(--spacing) * 1);
}

.action-btn {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    color: #C0C0C0;
    box-shadow: var(--shadow-glow-white);
}

.action-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px rgba(0, 102, 255, 0.4);
    transform: translateY(-1px);
}

.action-btn.danger:hover {
    background: var(--danger);
    border-color: var(--danger);
}

.file-list-item {
    display: flex;
    align-items: center;
    padding: calc(var(--spacing) * 2);
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.file-list-item:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-sm);
}

.file-list-preview {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-right: calc(var(--spacing) * 2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.file-list-info {
    flex: 1;
    min-width: 0;
}

.file-list-actions {
    display: flex;
    gap: calc(var(--spacing) * 1);
    margin-left: calc(var(--spacing) * 2);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 3);
    max-width: 400px;
    width: 90%;
    margin: calc(var(--spacing) * 2);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing) * 2);
}

.modal-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing) * 3);
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: calc(var(--spacing) * 2);
    justify-content: flex-end;
}

.modal-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 2);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #C0C0C0;
    box-shadow: var(--shadow-glow-white);
}

.modal-btn.primary {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
    box-shadow: 0 0 10px rgba(255, 68, 68, 0.3);
}

.modal-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    box-shadow: var(--shadow-glow-white-intense);
    transform: translateY(-1px);
}

.modal-btn.primary:hover {
    background: #DC2626;
}

.empty-state {
    text-align: center;
    padding: calc(var(--spacing) * 6);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: calc(var(--spacing) * 2);
    color: var(--text-tertiary);
}

.empty-text {
    font-size: 16px;
    margin-bottom: calc(var(--spacing) * 1);
}

.empty-subtext {
    font-size: 14px;
    color: var(--text-tertiary);
}

.notification {
    position: fixed;
    top: calc(var(--spacing) * 3);
    right: calc(var(--spacing) * 3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 2);
    box-shadow: var(--shadow-md);
    z-index: 1001;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

.notification.info {
    border-left: 4px solid var(--primary);
}

.notification-content {
    display: flex;
    align-items: flex-start;
    gap: calc(var(--spacing) * 1.5);
}

.notification-icon {
    font-size: 16px;
    margin-top: 2px;
}

.notification-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--spacing) * 3);
    width: 100%;
}

.search-controls {
    display: flex;
    gap: calc(var(--spacing) * 2);
    align-items: center;
}

/* Bulk Actions */
.bulk-actions {
    display: flex;
    gap: calc(var(--spacing) * 1);
    align-items: center;
}

.bulk-btn {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 1);
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);
    color: white;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.bulk-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.bulk-btn.secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.bulk-btn.secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.bulk-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.bulk-icon {
    font-size: 12px;
}

/* File Selection Checkbox */
.file-checkbox {
    position: absolute;
    top: calc(var(--spacing) * 1);
    left: calc(var(--spacing) * 1);
    width: 20px;
    height: 20px;
    appearance: none;
    background: var(--bg-secondary);
    border: 2px solid var(--border-medium);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
}

.file-checkbox:checked {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.file-checkbox:checked::after {
    content: '✓';
    position: absolute;
    top: -2px;
    left: 2px;
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.file-card {
    position: relative;
}

.file-card.selected {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* Enhanced Progress Section */
.progress-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: calc(var(--spacing) * 2);
    border: 1px solid var(--border-light);
}

.progress-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
}

.progress-bar {
    width: 200px;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Multi-file Upload Enhancements */
.drop-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: calc(var(--spacing) * 1);
}

.drop-subtext {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing) * 3);
}

.upload-btn {
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.upload-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Upload Stats */
.upload-stats {
    margin-top: calc(var(--spacing) * 2);
    padding: calc(var(--spacing) * 1.5);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-accent);
}

.stats-text {
    font-size: 13px;
    color: var(--accent-primary);
    font-weight: 500;
    text-align: center;
}

#fileCount {
    font-weight: 700;
    color: var(--accent-secondary);
}

@media (max-width: 768px) {
    .container {
        padding: calc(var(--spacing) * 2);
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: calc(var(--spacing) * 2);
    }
    
    .header-title {
        margin-left: 0;
    }
    
    .header-controls {
        flex-direction: column;
        gap: calc(var(--spacing) * 2);
    }
    
    .files-header {
        flex-direction: column;
        align-items: flex-start;
        gap: calc(var(--spacing) * 2);
    }
    
    .search-controls {
        width: 100%;
        flex-direction: column;
    }
    
    .bulk-actions {
        flex-wrap: wrap;
        gap: calc(var(--spacing) * 1);
    }
    
    .bulk-btn {
        font-size: 12px;
        padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    }
    
    .search-input {
        width: 100%;
    }
    
    .files-grid {
        grid-template-columns: 1fr;
    }
}

/* Pagination Styles */
.pagination-wrapper {
    margin-top: calc(var(--spacing) * 4);
    padding-top: calc(var(--spacing) * 3);
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing) * 2);
    font-size: 14px;
    color: var(--text-secondary);
}

.items-per-page {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.items-per-page:hover {
    border-color: var(--accent-primary);
}

.items-per-page:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing) * 1);
}

.pagination-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 1.5);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 36px;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.pagination-numbers {
    display: flex;
    gap: calc(var(--spacing) * 0.5);
}

.pagination-ellipsis {
    padding: calc(var(--spacing) * 1);
    color: var(--text-tertiary);
}