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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --danger-color: #ef4444;
    --danger-dark: #dc2626;
    --success-color: #10b981;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 2rem 1rem;
}

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

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    box-shadow: 0 20px 40px var(--shadow);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

/* Controls */
.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: 15px;
    border: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filter-section label {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.icon {
    width: 20px;
    height: 20px;
}

.category-select {
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border-radius: 10px;
    border: 2px solid var(--border);
    background: var(--surface-light);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
}

.category-select:hover {
    border-color: var(--primary-color);
}

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

.pagination-info {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 4rem 2rem;
}

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

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

/* Error State */
.error-state {
    text-align: center;
    padding: 4rem 2rem;
}

.error-icon {
    width: 64px;
    height: 64px;
    color: var(--danger-color);
    margin-bottom: 1rem;
}

.error-state h3 {
    margin-bottom: 0.5rem;
    color: var(--danger-color);
}

.retry-btn {
    margin-top: 1.5rem;
    padding: 0.75rem 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    width: 64px;
    height: 64px;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
}

/* Prompts Grid */
.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.category-section {
    grid-column: 1 / -1;
}

.category-header {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--surface), var(--surface-light));
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.category-prompts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Prompt Card */
.prompt-card {
    background: var(--surface);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.prompt-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow);
    border-color: var(--primary-color);
}

.prompt-image-container {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--surface-light);
}

.prompt-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.prompt-card:hover .prompt-image {
    transform: scale(1.05);
}

.prompt-content {
    padding: 1.25rem;
}

.prompt-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.prompt-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.prompt-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.prompt-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex: 1;
}

.category-tag {
    padding: 0.25rem 0.75rem;
    background: var(--surface-light);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--primary-color);
}

.delete-btn {
    padding: 0.5rem 1rem;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.delete-btn:hover {
    background: var(--danger-dark);
    transform: scale(1.05);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.pagination-btn {
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

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

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

.page-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.page-number {
    padding: 0.5rem 1rem;
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.page-number:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-number.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.page-ellipsis {
    color: var(--text-secondary);
    padding: 0 0.5rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface);
    padding: 2rem;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px var(--shadow);
}

.modal-content h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.btn-cancel,
.btn-delete {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-cancel {
    background: var(--surface-light);
    color: var(--text-primary);
}

.btn-cancel:hover {
    background: var(--border);
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-section {
        flex-direction: column;
        align-items: stretch;
    }

    .category-select {
        width: 100%;
    }

    .prompts-grid,
    .category-prompts {
        grid-template-columns: 1fr;
    }

    .pagination {
        gap: 0.5rem;
    }

    .pagination-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}