:root {
    --primary: #3498db;
    --secondary: #2c3e50;
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #17a2b8;
    --light: #ecf0f1;
    --dark: #34495e;
    --gray: #95a5a6;
    --bg-color: #f5f7fa;
    --text-color: #333;
    --card-bg: white;
    --header-bg: white;
    --border-color: #ddd;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f5f5f5;
    --card-bg: #2d2d2d;
    --header-bg: #2d2d2d;
    --border-color: #444;
    --gray: #777;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s, color 0.3s;
}

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

header {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--header-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo-container {
    text-align: center;
    margin-bottom: 20px;
}

.logo {
    width: 200px;
    height: 50px;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

header h1 {
    color: var(--primary);
    margin-bottom: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.interval-control {
    display: flex;
    align-items: center;
    gap: 5px;
}

.interval-control input {
    width: 50px;
    padding: 5px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.countdown {
    font-size: 0.9rem;
    color: var(--gray);
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background: #2980b9;
}

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

.btn-secondary:hover {
    background: #1e2a38;
}

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

.btn-info:hover {
    background: #138496;
}

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

.btn-danger:hover {
    background: #c0392b;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.dashboard {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.server-list, .alerts-panel {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* Estilos para filtros */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.filter-group label {
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-group input, .filter-group select {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.server-card {
    background: var(--card-bg);
    border-left: 4px solid var(--gray);
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.server-card.up {
    border-left-color: var(--success);
}

.server-card.down {
    border-left-color: var(--danger);
    animation: pulse 1s infinite;
}

.server-card.warning {
    border-left-color: var(--warning);
}

.server-info {
    flex: 1;
}

.server-name {
    font-weight: bold;
    margin-bottom: 5px;
}

.server-details {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.server-message {
    font-size: 0.8rem;
    margin-top: 5px;
    padding: 3px 6px;
    border-radius: 3px;
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .server-message {
    background-color: rgba(255, 255, 255, 0.1);
}

.server-status {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    margin: 0 10px;
}

.status-up {
    background: #e8f6ef;
    color: var(--success);
}

.status-down {
    background: #fdedec;
    color: var(--danger);
}

.status-warning {
    background: #fef9e7;
    color: var(--warning);
}

.status-unknown {
    background: #f8f9fa;
    color: #6c757d;
}

.server-actions {
    display: flex;
    gap: 10px;
}

.alert-item {
    padding: 10px 15px;
    margin-bottom: 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.alert-item.down {
    background: #fdedec;
    border-left: 4px solid var(--danger);
    color: var(--danger);
}

.alert-item.warning {
    background: #fef9e7;
    border-left: 4px solid var(--warning);
    color: var(--warning);
}

.alert-time {
    font-size: 0.8rem;
    color: var(--gray);
}

.loading, .empty-state {
    text-align: center;
    padding: 20px;
    color: var(--gray);
}

.no-results {
    text-align: center;
    padding: 20px;
    color: var(--gray);
    font-style: italic;
}

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

.modal-content {
    background-color: var(--card-bg);
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    animation: modalopen 0.3s;
}

@keyframes modalopen {
    from {opacity: 0; transform: translateY(-60px);}
    to {opacity: 1; transform: translateY(0);}
}

.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: var(--primary);
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
    padding: 0 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.form-group small {
    color: var(--gray);
    font-size: 0.8rem;
}

.form-actions {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    text-align: right;
}

.server-type-fields {
    border-top: 1px solid var(--border-color);
    margin-top: 15px;
    padding-top: 15px;
}

/* Animación para alertas */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Animación para botón de chequeo */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spin {
    animation: spin 1s infinite linear;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }

    .header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }

    .section-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .filters {
        flex-direction: column;
    }

    .server-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .server-actions {
        align-self: flex-end;
    }

    .alert-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}
.notification-info {
    margin-top: 8px;
    padding: 8px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    border-left: 3px solid #17a2b8;
}

.notification-status {
    display: flex;
    gap: 10px;
    margin-bottom: 5px;
}

.status-icon {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 6px;
    border-radius: 3px;
    font-size: 0.8rem;
}

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

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

.notification-info small {
    color: #6c757d;
    font-size: 0.75rem;
}

/* Estilos para el encabezado de fecha en notificaciones */
.notification-date-header {
    padding: 10px;
    background-color: var(--primary);
    color: white;
    text-align: center;
    border-radius: 4px;
    margin-bottom: 10px;
}

/* Estilos para modo oscuro */
[data-theme="dark"] .notification-date-header {
    background-color: #2c3e50;
}

/* Ajustes para el panel de notificaciones */
.notifications-panel {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.notifications-panel h3 {
    margin-top: 0;
    color: var(--primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.notification-log {
    max-height: 300px;
    overflow-y: auto;
    margin-top: 10px;
}

.notification-log-item {
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 6px;
    border-left: 4px solid #6c757d;
    background-color: rgba(0, 0, 0, 0.03);
}

.notification-log-item.success {
    border-left-color: #28a745;
    background-color: rgba(40, 167, 69, 0.1);
}

.notification-log-item.error {
    border-left-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.1);
}

.notification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 8px;
}

.notification-message {
    font-size: 0.9rem;
    color: #666;
    word-break: break-word;
    line-height: 1.4;
}

.notification-time {
    font-size: 0.8rem;
    color: #888;
    white-space: nowrap;
}

.status-icon {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
}

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

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

/* Estilos para modo oscuro */
[data-theme="dark"] .notification-log-item {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .notification-log-item.success {
    background-color: rgba(40, 167, 69, 0.15);
}

[data-theme="dark"] .notification-log-item.error {
    background-color: rgba(220, 53, 69, 0.15);
}

[data-theme="dark"] .notification-message {
    color: #ccc;
}

[data-theme="dark"] .notification-time {
    color: #aaa;
}