/* NXT-MailRelay - Stylesheet */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --border-color: #e5e7eb;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
    --gray-50: #1f2937;
    --gray-100: #374151;
    --gray-200: #4b5563;
    --gray-300: #6b7280;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #374151;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    font-size: 2rem;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-icon {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.btn-icon:hover {
    background: var(--gray-100);
    transform: scale(1.05);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-green { background: #d1fae5; color: #065f46; }
.badge-red { background: #fee2e2; color: #991b1b; }
.badge-yellow { background: #fef3c7; color: #92400e; }
.badge-blue { background: #dbeafe; color: #1e40af; }
.badge-gray { background: var(--gray-200); color: var(--gray-700); }

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    color: var(--gray-600);
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 500;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: 0.5rem;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-primary);
    border-radius: 0.5rem;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--border-color);
}

.stat-card.stat-success { border-left: 4px solid var(--success); }
.stat-card.stat-error { border-left: 4px solid var(--error); }
.stat-card.stat-warning { border-left: 4px solid var(--warning); }

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-content p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

#topSendersChart {
    max-height: 300px !important;
    height: 300px !important;
}

/* Table */
.table-container {
    overflow-x: auto;
}

.logs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.logs-table thead {
    background: var(--gray-50);
}

.logs-table th {
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
}

.logs-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--gray-200);
}

.logs-table tbody tr:hover {
    background: var(--gray-50);
}

/* Filters */
.filters {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.input, .select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

.input:focus, .select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

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

.btn-warning:hover {
    background: #d97706;
}

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

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: 0.375rem;
}

.info-label {
    font-weight: 500;
    color: var(--gray-700);
}

/* Config */
.config-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.config-item label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.config-value {
    color: var(--gray-600);
    font-family: 'Courier New', monospace;
}

/* Error List */
.error-list {
    max-height: 300px;
    overflow-y: auto;
}

.error-item {
    padding: 0.75rem;
    background: var(--gray-50);
    border-left: 3px solid var(--error);
    margin-bottom: 0.5rem;
    border-radius: 0.25rem;
}

.error-item .error-from {
    font-weight: 600;
    color: var(--gray-800);
}

.error-item .error-message {
    color: var(--error);
    font-size: 0.875rem;
}

.error-item .error-date {
    color: var(--gray-600);
    font-size: 0.75rem;
}

/* Forms */
.config-form {
    max-width: 800px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.form-group small, .help-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.save-result {
    font-size: 0.875rem;
    padding: 0.5rem;
}

.save-result.success {
    color: var(--success);
}

.save-result.error {
    color: var(--error);
}

/* TLS Section */
.tls-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.tls-option {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-secondary);
}

.tls-option h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .tls-section {
        grid-template-columns: 1fr 1fr;
    }
}

/* SMTP Users Management */
.users-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.users-table th,
.users-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.users-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.users-table td.actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-sm.btn-secondary {
    background: var(--gray-500);
    color: white;
}

.btn-sm.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-sm.btn-warning {
    background: var(--warning-color);
    color: var(--text-primary);
}

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

.btn-sm:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.status-active {
    color: var(--success-color);
    font-weight: 600;
}

.status-inactive {
    color: var(--error-color);
    font-weight: 600;
}

.info-text {
    color: var(--text-secondary);
    font-style: italic;
    padding: 1rem;
}

/* Badge styles */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.875rem;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-secondary {
    background: var(--gray-500);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: var(--text-primary);
}

.badge-danger {
    background: var(--error-color);
    color: white;
}

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--gray-600); }

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

.custom-modal-content {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

[data-theme="light"] .custom-modal-content {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

[data-theme="dark"] .custom-modal-content {
    background: #1f2937;
    border: 1px solid #374151;
}

.custom-modal-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.custom-modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.custom-modal-footer .btn {
    padding: 0.5rem 1.5rem;
}

/* Progress Bar Styles */
.restart-progress {
    text-align: center;
    padding: 1rem 0;
}

.progress-container {
    margin: 1.5rem 0;
    position: relative;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: 4px;
    transition: width 0.1s ease;
    width: 0%;
}

.progress-text {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 600;
    color: var(--primary);
    font-size: 0.875rem;
}

.progress-message {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.progress-message span {
    font-weight: 600;
    color: var(--primary);
}