/* css/estilos.css */
:root {
    --color-primario: #0d47a1; /* Azul oscuro */
    --color-primario-hover: #0b3c85;
    --color-secundario: #1976d2; /* Azul medio */
    --color-fondo: #f4f6f9; /* Gris muy claro */
    --color-panel: #ffffff;
    --color-texto: #333333;
    --color-texto-claro: #ffffff;
    --color-borde: #dee2e6;
    --color-exito: #4caf50;
    --color-error: #f44336;
    --sombra-panel: 0 4px 6px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.1);
    --sombra-panel-hover: 0 6px 12px rgba(0,0,0,0.1), 0 3px 6px rgba(0,0,0,0.08);
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-fondo);
    color: var(--color-texto);
    line-height: 1.6;
    transition: background-color var(--transition-speed);
}

/* --- Animación de Carga de Página --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.main-container {
    padding: 1rem;
    animation: fadeIn 0.5s ease-out;
}

/* --- Estilos Login --- */
.login-body { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-container { 
    width: 100%; 
    max-width: 400px; 
    padding: 2rem; 
    background: var(--color-panel); 
    border-radius: var(--border-radius); 
    box-shadow: var(--sombra-panel);
    animation: fadeIn 0.5s ease-out;
}
.login-container h1 { font-size: 1.5rem; color: var(--color-primario); text-align: center; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input { 
    width: 100%; 
    padding: 0.75rem; 
    border: 1px solid var(--color-borde); 
    border-radius: 4px; 
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.form-group input:focus {
    outline: none;
    border-color: var(--color-primario);
    box-shadow: 0 0 0 3px rgba(13, 71, 161, 0.1);
}

/* --- Estilos Generales App --- */
.header {
    background-color: var(--color-primario); 
    color: var(--color-texto-claro);
    padding: 0 1rem; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    height: 60px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-logo a { font-size: 1.2rem; font-weight: bold; color: var(--color-texto-claro); text-decoration: none; }
.header-nav { display: flex; align-items: center; }
.header-nav a { 
    color: var(--color-texto-claro); 
    text-decoration: none; 
    margin-left: 1.5rem;
    transition: color var(--transition-speed);
}
.header-nav a:hover { color: #bbdefb; }

.menu-toggle { display: none; } /* Oculto por defecto */

/* --- Estilos Paneles y Grid --- */
.grid-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}
.panel {
    background: var(--color-panel); 
    padding: 1.5rem; 
    border-radius: var(--border-radius);
    box-shadow: var(--sombra-panel);
    transition: box-shadow var(--transition-speed), transform var(--transition-speed);
}
.panel:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-panel-hover);
}
.panel h3 { margin-bottom: 1rem; border-bottom: 1px solid var(--color-borde); padding-bottom: 0.75rem; color: var(--color-primario); }

/* --- Estilos Módulos de Operador --- */
.modulo-operador {
    max-width: 600px; 
    margin: 0 auto 2rem auto; 
    padding: 2rem;
    background: var(--color-panel); 
    border-radius: var(--border-radius); 
    box-shadow: var(--sombra-panel);
}
.modulo-operador h2 { text-align: center; margin-bottom: 1.5rem; color: var(--color-primario); }

/* --- Estilos Comunes (Botones, Tablas, Mensajes, Modales) --- */
.btn-principal, .btn-secundario, .btn-editar, .btn-eliminar {
    padding: 0.8rem 1.2rem; 
    border: none; 
    border-radius: 4px;
    color: var(--color-texto-claro);
    font-size: 1rem; 
    font-weight: 600; 
    cursor: pointer; 
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}
.btn-principal { background-color: var(--color-primario); }
.btn-principal:hover { background-color: var(--color-primario-hover); transform: translateY(-2px); }
.btn-secundario { background-color: var(--color-secundario); }
.btn-secundario:hover { background-color: #1565c0; transform: translateY(-2px); }

.tabla-container { 
    margin-top: 1rem; 
    max-height: 450px; 
    overflow-y: auto; 
    border: 1px solid var(--color-borde);
    border-radius: var(--border-radius);
}
.tabla-container:empty::before {
    content: "Cargando datos...";
    display: block;
    text-align: center;
    padding: 2rem;
    color: #888;
    animation: fadeIn 1s infinite alternate;
}
.tabla-datos { width: 100%; border-collapse: collapse; }
.tabla-datos th, .tabla-datos td {
    padding: 0.8rem 1rem; text-align: left; border-bottom: 1px solid var(--color-borde);
}
.tabla-datos thead { background-color: var(--color-fondo); position: sticky; top: 0; z-index: 10;}
.tabla-datos th { font-weight: 600; }
.tabla-datos tbody tr:hover { background-color: #e3f2fd; }

.mensaje-sistema {
    position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
    padding: 1rem 2rem; color: var(--color-texto-claro); border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -20px);
    transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease, visibility var(--transition-speed);
}
.mensaje-sistema.visible { opacity: 1; visibility: visible; transform: translateX(-50%); }
.mensaje-sistema.success { background-color: var(--color-exito); }
.mensaje-sistema.error { background-color: var(--color-error); }

.modal-oculto {
    display: flex; /* Usar flex para centrar */
    align-items: center;
    justify-content: center;
    position: fixed; z-index: 1000; left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.6);
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
}
.modal-oculto.visible { opacity: 1; visibility: visible; }
.modal-contenido {
    background-color: #fefefe; padding: 2rem; border-radius: var(--border-radius);
    width: 90%; max-width: 500px; position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transform: translateY(-20px) scale(0.95);
    transition: transform var(--transition-speed) ease-out;
}
.modal-oculto.visible .modal-contenido { transform: translateY(0) scale(1); }
.modal-cerrar {
    position: absolute; top: 10px; right: 20px;
    color: #aaa; font-size: 28px; font-weight: bold; cursor: pointer;
}

/* --- RESPONSIVIDAD --- */
@media (max-width: 992px) {
    .header-nav {
        display: none; /* Ocultar navegación de escritorio */
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 0;
        background-color: var(--color-primario-hover);
        width: 250px;
        padding: 1rem;
        box-shadow: -2px 2px 5px rgba(0,0,0,0.1);
    }
    .header-nav.active { display: flex; }
    .header-nav a, .header-nav .welcome-message {
        margin: 0.5rem 0;
        width: 100%;
        text-align: right;
    }
    .menu-toggle {
        display: block; /* Mostrar botón de hamburguesa */
        background: none;
        border: none;
        color: white;
        font-size: 24px;
        cursor: pointer;
    }
}

@media (max-width: 768px) {
    .main-container { padding: 1rem; }
    .grid-dashboard { grid-template-columns: 1fr; }
    .login-container { margin: 1rem; }
}

/* --- ESTILOS PARA NOTIFICACIONES EN TIEMPO REAL --- */
.notification-container {
    position: fixed;
    top: 80px; /* Debajo del header */
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.notification-toast {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    max-width: 350px;
}

.notification-toast.visible {
    opacity: 1;
    transform: translateX(0);
}

.notification-toast .icon {
    font-size: 24px;
}

.notification-toast .message {
    flex-grow: 1;
    font-size: 14px;
}

.notification-toast .close-btn {
    background: none;
    border: none;
    color: #bdc3c7;
    font-size: 20px;
    cursor: pointer;
    padding: 0 5px;
}