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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Encabezado */
header {
    background: linear-gradient(135deg, #3a5baa 0%, #6481b8 100%);
    color: white;
    padding: 1.5rem 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header h1 {
    margin-bottom: 0.5rem;
    font-size: 2.2rem;
}

/* Navegación */
nav {
    background-color: #3a5baa;
    margin-bottom: 2rem;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 1rem 1.5rem;
    transition: background-color 0.3s;
}

nav ul li a:hover, 
nav ul li a.active {
    background-color: #6481b8;
}

/* Contenido principal */
main {
    min-height: calc(100vh - 200px);
}

.welcome-section {
    text-align: center;
    margin-bottom: 2rem;
}

.welcome-section h2 {
    margin-bottom: 1rem;
    color: #3a5baa;
    font-size: 1.8rem;
}

/* Tarjetas del dashboard */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid #6481b8;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.card h3 {
    color: #3a5baa;
    margin-bottom: 1rem;
}

.card p {
    margin-bottom: 1.5rem;
    color: #666;
}

/* Botones */
.btn {
    display: inline-block;
    background-color: #6481b8;
    color: white;
    padding: 0.7rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    font-weight: 600;
}

.btn:hover {
    background-color: #3a5baa;
}

.btn-secondary {
    background-color: #d4e392;
    color: #333;
}

.btn-secondary:hover {
    background-color: #c4d382;
    color: #000;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #3a5baa;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #6481b8;
    outline: none;
    box-shadow: 0 0 0 2px rgba(100, 129, 184, 0.2);
}

/* Tablas */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: white;
    box-shadow: 0 2px 3px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    background-color: #6481b8;
    color: white;
    font-weight: 600;
}

.data-table tr:hover {
    background-color: #f0f4f8;
}

/* Pie de página */
footer {
    background-color: #3a5baa;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

/* Mensajes de éxito y error */
.mensaje-exito {
    background-color: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    border: 1px solid #c3e6cb;
}

.mensaje-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    border: 1px solid #f5c6cb;
}

/* Estilos para formularios */
.form-section {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-top: 4px solid #d4e392;
}

.list-section {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-left: 4px solid #6481b8;
}

/* Mejoras para tablas */
.data-table tfoot {
    font-weight: bold;
    background-color: #f0f4f8;
}

/* Elementos destacados */
.highlight {
    background-color: rgba(212, 227, 146, 0.2);
    padding: 0.5rem;
    border-radius: 4px;
    border-left: 3px solid #d4e392;
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
    }
}
.header-logo {
    text-align: center; /* centra todo el contenido */
}

.header-logo img.logo {
    height: 80px;   /* ajusta el tamaño del logo */
    width: auto;
    margin-bottom: 10px; /* espacio debajo de la imagen */
}

/* ==== Estilos para el filtro ==== */
.filter-section {
    margin: 20px 0;
    padding: 1.5rem;
    background: white;                    /* Igual que .form-section y .list-section */
    border-radius: 8px;                   /* Bordes redondeados consistentes */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);/* Sombra suave */
    border-top: 4px solid #6481b8;        /* Color acorde a contenedores */
}

.filter-section form {
    display: flex;
    flex-wrap: wrap;   /* Se acomoda en varias líneas en pantallas chicas */
    gap: 15px;         /* Espacio entre los campos */
    align-items: flex-end; 
}

.filter-section .form-group {
    display: flex;
    flex-direction: column;
    min-width: 150px;   /* Ancho mínimo de cada campo */
}

.filter-section label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #3a5baa;     /* Mismo color de labels en formularios */
}

.filter-section select,
.filter-section input[type="date"] {
    padding: 0.6rem 0.8rem;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.filter-section select:focus,
.filter-section input[type="date"]:focus {
    border-color: #6481b8;
    box-shadow: 0 0 0 2px rgba(100, 129, 184, 0.2);
}

.filter-section .btn {
    padding: 0.7rem 1.2rem;
    background-color: #6481b8;  /* Igual que los botones principales */
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.filter-section .btn:hover {
    background-color: #3a5baa; /* Hover consistente */
}