/* Frontend Styles for Newsletter EPUB System */

.epub-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.epub-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    text-align: center;
}

.epub-header h1 {
    margin: 0 0 10px 0;
    font-size: 2.5em;
    font-weight: 300;
}

.epub-header p {
    margin: 0;
    font-size: 1.1em;
    opacity: 0.9;
}

.epub-nav {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.epub-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.epub-nav li {
    margin: 0;
}

.epub-nav a {
    display: inline-block;
    padding: 12px 20px;
    background: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.epub-nav a:hover,
.epub-nav a.active {
    background: #0073aa;
    color: white;
    border-color: #0073aa;
}

.epub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.epub-newsletter-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.epub-newsletter-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.newsletter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.newsletter-header h3 {
    margin: 0;
    color: #333;
    font-size: 1.2em;
}

.newsletter-status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
}

.newsletter-status.active {
    background: #d4edda;
    color: #155724;
}

.newsletter-status.inactive {
    background: #f8d7da;
    color: #721c24;
}

.newsletter-details p {
    margin: 5px 0;
    font-size: 13px;
    color: #666;
}

.newsletter-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.newsletter-actions a {
    display: inline-block;
    padding: 8px 16px;
    background: #0073aa;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background 0.3s ease;
}

.newsletter-actions a:hover {
    background: #005a87;
}

.newsletter-actions a.secondary {
    background: #6c757d;
}

.newsletter-actions a.secondary:hover {
    background: #545b62;
}

.epub-settings-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.epub-settings-card,
.epub-info-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.epub-settings-card h2,
.epub-info-card h3 {
    margin: 0 0 20px 0;
    color: #333;
    border-bottom: 2px solid #0073aa;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

.required {
    color: #dc3232;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #0073aa;
    box-shadow: 0 0 0 1px #0073aa;
    outline: none;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-weight: normal !important;
}

.checkbox-label input[type="checkbox"] {
    width: auto !important;
    margin: 0;
}

.form-help {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 12px;
}

.form-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.form-actions button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.form-actions .button-primary {
    background: #0073aa;
    color: white;
}

.form-actions .button-primary:hover {
    background: #005a87;
}

.form-actions .button-secondary {
    background: #6c757d;
    color: white;
}

.form-actions .button-secondary:hover {
    background: #545b62;
}

.epub-entries-section {
    margin: 30px 0;
}

.epub-entries-section h2 {
    margin-bottom: 20px;
    color: #333;
}

.epub-entries-table {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.epub-entries-table table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.epub-entries-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.epub-entries-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

.source-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
}

.source-badge.manual {
    background: #fff3cd;
    color: #856404;
}

.source-badge.email {
    background: #d1ecf1;
    color: #0c5460;
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
}

.status-badge.status-success {
    background: #d4edda;
    color: #155724;
}

.status-badge.status-pending {
    background: #fff3cd;
    color: #856404;
}

.notice {
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
    border-left: 4px solid;
}

.notice-error {
    background: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.notice-success {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.notice-warning {
    background: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.notice-info {
    background: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

.epub-back-link {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}

.epub-back-link a {
    display: inline-block;
    padding: 10px 20px;
    background: #6c757d;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.epub-back-link a:hover {
    background: #545b62;
}

/* Responsive Design */
@media (max-width: 768px) {
    .epub-container {
        padding: 10px;
    }
    
    .epub-header {
        padding: 20px;
    }
    
    .epub-header h1 {
        font-size: 2em;
    }
    
    .epub-nav ul {
        flex-direction: column;
    }
    
    .epub-settings-container {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions button {
        justify-content: center;
    }
    
    .newsletter-actions {
        flex-direction: column;
    }
    
    .epub-entries-table {
        overflow-x: auto;
    }
}

/* Loading and Error States */
.epub-loading {
    text-align: center;
    padding: 20px;
    color: #666;
    font-style: italic;
}

.epub-error {
    text-align: center;
    padding: 20px;
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin: 10px 0;
}

.epub-message {
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
    border-left: 4px solid;
}

.epub-message.success {
    background-color: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.epub-message.error {
    background-color: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

/* Newsletter Management Menu Styles */
.newsletter-management-menu {
    position: relative;
}

.newsletter-management-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    min-width: 200px;
    z-index: 1000;
    list-style: none;
    margin: 0;
    padding: 0;
}

.newsletter-management-menu:hover .sub-menu,
.newsletter-management-menu .sub-menu.show {
    display: block;
}

.newsletter-management-menu .sub-menu li {
    margin: 0;
    padding: 0;
    border-bottom: 1px solid #f0f0f0;
}

.newsletter-management-menu .sub-menu li:last-child {
    border-bottom: none;
}

.newsletter-management-menu .sub-menu a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.2s;
}

.newsletter-management-menu .sub-menu a:hover {
    background-color: #f5f5f5;
    color: #0073aa;
}

.newsletter-menu-toggle {
    cursor: pointer;
}

.newsletter-menu-toggle::after {
    content: '▼';
    margin-left: 5px;
    font-size: 0.8em;
}

/* Mobile responsive menu */
@media (max-width: 768px) {
    .newsletter-management-menu .sub-menu {
        position: static;
        box-shadow: none;
        border: none;
        background: #f9f9f9;
        margin-top: 5px;
    }
    
    .newsletter-management-menu .sub-menu a {
        padding: 8px 20px;
    }
}