/* RouterOS TX Monitor - CSS Mejorado */
/* Diseño armónico con alta legibilidad y contraste */

/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --primary-blue: #2563eb;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1d4ed8;
    
    /* Colores de fondo */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-accent: #f1f5f9;
    
    /* Colores de texto */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-white: #ffffff;
    
    /* Colores de estado */
    --success: #059669;
    --warning: #d97706;
    --error: #dc2626;
    --info: #0284c7;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Bordes */
    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header mejorado */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header h1 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-nav {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-link {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.nav-link:hover {
    background-color: var(--bg-accent);
    color: var(--text-primary);
}

.nav-link.active {
    background-color: var(--primary-blue);
    color: var(--text-white);
}

.nav-link.logout {
    color: var(--error);
}

.nav-link.logout:hover {
    background-color: var(--error);
    color: var(--text-white);
}

/* Main container */
.dashboard-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Alertas mejoradas */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-weight: 500;
}

.alert-error {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: var(--error);
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: var(--success);
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.alert-close:hover {
    opacity: 1;
}

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

.stat-card {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2rem;
    background-color: var(--bg-accent);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 4rem;
    min-height: 4rem;
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    word-break: break-all;
}

/* Contenedores de contenido */
.chart-container, .table-container {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.chart-container h2, .table-container h2 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Tabla mejorada */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table thead {
    background-color: var(--bg-accent);
}

.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    vertical-align: top;
}

.data-table tbody tr:hover {
    background-color: var(--bg-accent);
}

.data-table .loading, 
.data-table .no-data {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Filtros mejorados */
.filters {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.filter-group input, 
.filter-group select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.filter-group input:focus, 
.filter-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Botones mejorados */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    min-width: max-content;
}

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

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* Login styles */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-form {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-blue);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.login-button:hover {
    background-color: var(--primary-blue-dark);
    transform: translateY(-1px);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* Última actualización */
.last-update {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* Responsive design mejorado */
@media (max-width: 768px) {
    .dashboard-main {
        padding: 1rem;
        gap: 1.5rem;
    }
    
    .header-content {
        padding: 0 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.25rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .chart-container, .table-container {
        padding: 1rem;
    }
    
    .filters {
        padding: 1rem;
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .data-table {
        font-size: 0.75rem;
    }
    
    .data-table th, .data-table td {
        padding: 0.5rem;
    }
    
    /* Scroll horizontal para tablas en móvil */
    .table-container {
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 600px;
    }
}

@media (max-width: 480px) {
    .stat-icon {
        font-size: 1.5rem;
        min-width: 3rem;
        min-height: 3rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
}

/* Animaciones suaves */
* {
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

/* Accesibilidad mejorada */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Print styles */
@media print {
    .header-nav,
    .filters,
    .btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .stat-card,
    .chart-container,
    .table-container {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}

/* ===== CLASES ADICIONALES PARA COMPATIBILIDAD ===== */

/* Main content (compatibilidad con index.html) */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Dashboard container */
.dashboard {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Controls section */
.controls {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.control-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.date-input, .control-group select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.date-input:focus, .control-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.stat {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Charts container */
.charts {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.chart {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.chart h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Data table in main dashboard */
.data-section {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.data-section h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Alert and message styles */
.message {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.error {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: var(--error);
}

.message.success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: var(--success);
}

.message.info {
    background-color: #f0f9ff;
    border-color: #bfdbfe;
    color: var(--info);
}

/* Loading states */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-muted);
    font-style: italic;
}

.loading::before {
    content: "⏳ ";
    margin-right: 0.5rem;
}

/* Empty states */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-muted);
    text-align: center;
}

.empty-state::before {
    content: "📊";
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Responsive adjustments for main dashboard */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .dashboard {
        gap: 1.5rem;
    }
    
    .controls {
        padding: 1rem;
    }
    
    .control-group {
        min-width: 100%;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .chart, .data-section {
        padding: 1rem;
    }
}