:root {
    --sam-dark: #1e293b;  
    --sam-blue-btn: #0ea5e9; 
    --sam-bg: #f8fafc;
}

body {
    background-color: var(--sam-bg);
    margin: 0; padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Header con mejor espaciado lateral */
.admin-header {
    background-color: var(--sam-dark);
    color: white;
    padding: 0.8rem 4%; 
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.2);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

/* Filtro para que el logo azul se vea blanco/plata */
.admin-brand img {
    height: 32px;
    filter: brightness(0) invert(1) opacity(0.9);
}

.colaborador-tag {
    font-size: 0.85rem;
    color: #94a3b8;
    border-left: 1px solid #475569;
    padding-left: 15px;
}

.colaborador-tag strong { color: white; }

/* Contenedor de botones a la derecha */
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Estilo exacto de tus botones de la Imagen 4 */
.btn-nav {
    padding: 7px 15px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-dash { background-color: #0284c7; color: white; } /* Azul claro */
.btn-anu { background-color: #075985; color: white; }  /* Azul oscuro */
.btn-back { border: 1px solid #475569; color: white; } 
.btn-exit { background-color: #ef4444; color: white; } /* Rojo */

.btn-nav:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

/* Main con margen superior */
.main-content {
    max-width: 100%; /* Permite que el wrapper del panel gestione el ancho */
    margin: 0; 
    padding: 0;
}

/* Selector de idioma discreto */
.lang-select {
    background: transparent;
    color: white;
    border: 1px solid #475569;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.8rem;
    cursor: pointer;
}