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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h1 {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.nav-link:hover {
    background: rgba(255,255,255,0.2);
}

.nav-link.active {
    background: rgba(255,255,255,0.3);
}

/* Main Content */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

/* Admin Header */
.admin-header {
    margin-bottom: 2rem;
}

.admin-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.admin-header p {
    color: #666;
}

/* Message */
.message {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    animation: slideIn 0.3s ease;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Section Cards */
.sections-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.section-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.section-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.section-header {
    margin-bottom: 1rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.section-title h3 {
    flex: 1;
    color: #667eea;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge.priority {
    background: #e3f2fd;
    color: #1976d2;
}

.badge.max-items {
    background: #f3e5f5;
    color: #7b1fa2;
}

.section-description {
    color: #666;
    font-size: 0.95rem;
}

.section-controls {
    display: flex;
    gap: 0.75rem;
}

/* Toggle Switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
    background-color: #667eea;
}

.toggle input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* Buttons */
.btn {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #e0e7ff;
    color: #667eea;
}

.btn-secondary:hover {
    background: #c7d2fe;
}

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

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

/* Sources */
.sources-list {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.sources-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.sources-header h4 {
    color: #4b5563;
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.source-item {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
}

.source-item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.5rem;
}

.source-name {
    font-weight: 600;
    color: #111827;
}

.source-meta {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.source-url {
    font-size: 0.8rem;
    color: #9ca3af;
    word-break: break-all;
}

.source-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.source-actions button {
    flex: 1;
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    color: #111827;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #9ca3af;
}

.modal-close:hover {
    color: #374151;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-control {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.95rem;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

textarea.form-control {
    resize: vertical;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Footer */
footer {
    background: #1f2937;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    text-align: center;
    color: #9ca3af;
}

/* Tags */
.tags-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    min-height: 42px;
    background: white;
}

.tags-input-container:focus-within {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background: #e0e7ff;
    color: #4338ca;
    border-radius: 16px;
    font-size: 0.875rem;
    font-weight: 500;
}

.tag-chip .remove-tag {
    cursor: pointer;
    font-weight: bold;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.tag-chip .remove-tag:hover {
    opacity: 1;
}

.tag-input-field {
    flex: 1;
    min-width: 120px;
    border: none;
    outline: none;
    font-size: 0.95rem;
    padding: 0.25rem;
}

.tag-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.5rem;
}

.tag-suggestion {
    padding: 0.25rem 0.625rem;
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 12px;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid #e5e7eb;
}

.tag-suggestion:hover {
    background: #e5e7eb;
    color: #374151;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .sources-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        flex-wrap: wrap;
    }
}