/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

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

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px 30px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header h1 {
    color: #4a5568;
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header h1 i {
    color: #667eea;
}

.nav {
    display: flex;
    gap: 15px;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    padding: 10px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.nav-link:hover {
    background: #f7fafc;
    color: #667eea;
}

.nav-link.active {
    background: #667eea;
    color: white;
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card i {
    font-size: 2rem;
    color: #667eea;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2d3748;
}

.stat-label {
    font-size: 0.9rem;
    color: #718096;
    font-weight: 500;
}

/* Controls Section */
.controls-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.filters-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: #4a5568;
    font-size: 0.9rem;
}

.filter-select,
.filter-input {
    padding: 10px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
    background: white;
}

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

.actions-container {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

/* Button Styles */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

.btn-primary:hover {
    background: #5a67d8;
}

.btn-secondary {
    background: #718096;
    color: white;
}

.btn-secondary:hover {
    background: #4a5568;
}

.btn-success {
    background: #48bb78;
    color: white;
}

.btn-success:hover {
    background: #38a169;
}

.btn-danger {
    background: #f56565;
    color: white;
}

.btn-danger:hover {
    background: #e53e3e;
}

/* Table Container */
.table-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.table-header {
    padding: 20px 25px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.table-info {
    font-weight: 600;
    color: #4a5568;
}

.table-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-size-select {
    padding: 8px 12px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    background: white;
}

/* Table Styles */
.table-wrapper {
    overflow-x: auto;
    max-height: 600px;
    overflow-y: auto;
}

.interactions-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.interactions-table th {
    background: #f7fafc;
    padding: 15px 12px;
    text-align: left;
    font-weight: 600;
    color: #4a5568;
    border-bottom: 2px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.interactions-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.3s ease;
}

.interactions-table th.sortable:hover {
    background: #edf2f7;
}

.interactions-table th.sortable i {
    margin-left: 5px;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.interactions-table th.sortable:hover i {
    opacity: 1;
}

.interactions-table th.sort-asc i::before {
    content: "\f0de";
    opacity: 1;
}

.interactions-table th.sort-desc i::before {
    content: "\f0dd";
    opacity: 1;
}

.interactions-table td {
    padding: 12px;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
}

.interactions-table tbody tr {
    transition: background-color 0.3s ease;
}

.interactions-table tbody tr:hover {
    background: #f7fafc;
}

.interactions-table tbody tr.selected {
    background: #ebf8ff;
}

/* Status Badges */
.status-badge {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-received {
    background: #fed7d7;
    color: #c53030;
}

.status-comment-replied {
    background: #c6f6d5;
    color: #2f855a;
}

.status-private-replied {
    background: #bee3f8;
    color: #2b6cb0;
}

.status-no-match {
    background: #fed7d7;
    color: #c53030;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-edit {
    background: #4299e1;
    color: white;
}

.btn-edit:hover {
    background: #3182ce;
}

.btn-delete {
    background: #f56565;
    color: white;
}

.btn-delete:hover {
    background: #e53e3e;
}

/* Pagination */
.pagination {
    padding: 20px 25px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

#pageInfo {
    font-weight: 600;
    color: #4a5568;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: #2d3748;
    font-size: 1.5rem;
}

.close {
    color: #a0aec0;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #4a5568;
}

.modal-body {
    padding: 25px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #4a5568;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
    resize: vertical;
}

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

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 25px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filters-container {
        grid-template-columns: 1fr;
    }
    
    .actions-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .table-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .interactions-table {
        font-size: 0.8rem;
    }
    
    .interactions-table th,
    .interactions-table td {
        padding: 8px 6px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}

@media (max-width: 480px) {
    .stats-bar {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-direction: column;
        gap: 10px;
    }
}

/* Loading States */
.loading {
    text-align: center;
    padding: 40px;
    color: #718096;
    font-style: italic;
}

.error {
    text-align: center;
    padding: 40px;
    color: #e53e3e;
    background: #fed7d7;
    border-radius: 8px;
    margin: 20px 0;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #718096;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: #4a5568;
}

/* Checkbox Styles */
input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Text Truncation */
.text-truncate {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-truncate:hover {
    white-space: normal;
    word-break: break-word;
    max-width: 300px;
    position: relative;
    z-index: 5;
    background: white;
    padding: 5px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}