/* ==========================================================================
   VARIABLES GLOBALES Y CONFIGURACIÓN BASE
   ========================================================================== */
:root {
    --fondo-principal: #F4F1EB;
    --color-principal: #3F4548;
    --acento: #8B9B8A;
    --detalles: #C9B8A6;
    --texto-oscuro: #2F3336;
    --texto-claro: #FCFBF8;
}

body {
    background-color: var(--fondo-principal);
    color: var(--texto-oscuro);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
}

/* ==========================================================================
   HEADER / NAVBAR PREMIUM (ESTILO NUEVO DEL MENÚ)
   ========================================================================== */
.main-header {
    background-color: var(--color-principal); /* #3F4548 */
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    width: 100%;
    box-sizing: border-box;
}

.main-header .logo {
    color: var(--texto-claro); /* #FCFBF8 */
    font-size: 1.8rem;
    font-weight: bold;
    letter-spacing: 3px;
}

/* Contenedor de enlaces de navegación */
.main-header nav {
    display: flex;
    align-items: center;
    gap: 25px;
}

/* Enlaces individuales con tipografía limpia y espaciado proporcional */
.main-header nav a {
    color: var(--texto-claro);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color 0.3s ease;
    padding: 5px 0;
    margin-left: 0; /* Reseteado para el flujo flexible moderno */
}

/* Efecto hover interactivo con la línea inferior del menú */
.main-header nav a:hover, 
.main-header nav a.active {
    color: var(--detalles); /* #C9B8A6 */
    border-bottom: 2px solid var(--detalles);
}

/* Botón Destacado de Cerrar Sesión interactivo */
.main-header nav a[href*="logout.php"],
.main-header .btn-logout {
    background-color: #7A6F65;
    padding: 8px 15px !important;
    border-radius: 6px;
    border-bottom: none !important;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.main-header nav a[href*="logout.php"]:hover,
.main-header .btn-logout:hover {
    background-color: var(--acento) !important; /* #8B9B8A */
    color: var(--texto-claro) !important;
    border-bottom: none !important;
}

/* ==========================================================================
   SECCIONES DEL INDEX (HERO, CARTAS, ABOUT, FOOTER)
   ========================================================================== */
.hero {
    /* El gradiente oscuro ayuda a que el texto blanco se lea perfecto */
    background: linear-gradient(rgba(47, 51, 54, 0.6), rgba(47, 51, 54, 0.6)), 
                url('../../assets/img/banner1.jpg');
    background-size: cover;      /* Ajusta la imagen para cubrir todo el espacio */
    background-position: center; /* Centra la imagen */
    background-repeat: no-repeat;
    
    color: var(--texto-claro);
    padding: 120px 20px;         /* Un poco más de espacio para que se luzca la foto */
    text-align: center;
}

.btn-ver-menu {
    display: inline-block;
    background-color: var(--detalles);
    color: var(--texto-oscuro);
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 20px;
    transition: background-color 0.3s ease;
}

.btn-ver-menu:hover {
    background-color: var(--acento);
    color: var(--texto-claro);
}

/* Tarjetas A, F, R */
.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 40px;
}

.card {
    background-color: var(--color-principal);
    color: var(--texto-claro);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    border-bottom: 6px solid var(--acento);
}

.about-section {
    background-color: var(--fondo-secundario);
    padding: 80px 20px;
    text-align: center;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-section h2 {
    color: var(--color-principal);
    margin-bottom: 20px;
}

.about-section p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--texto-oscuro);
}

/* Pie de página */
.main-footer {
    background-color: var(--texto-oscuro);
    color: var(--texto-claro);
    padding: 40px 20px;
    text-align: center;
}

.footer-info {
    margin-bottom: 20px;
}

.footer-info p {
    margin: 5px 0;
    font-size: 0.9rem;
}

.footer-copy {
    border-top: 1px solid var(--color-principal);
    padding-top: 20px;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ==========================================================================
   RESPONSIVE DESIGN BÁSICO PARA EL INDEX
   ========================================================================== */
@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    .info-cards {
        grid-template-columns: 1fr;
        padding: 20px;
    }
}