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

body {
    font-family: Arial, sans-serif;
    background: #EBF4F6;
    color: #1a1a1a;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.contenedor {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 20px;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
    padding: 50px 20px 60px;
}

/* ===== Cabecera ===== */
header {
    background: #088395;
    border-bottom: 1px solid #e0e0e0;
}

.cabecera-interior {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 14px;
    padding-bottom: 14px;
}

.logo img {
    height: 42px;
    display: block;
}

.buscador {
    flex: 1;
    max-width: 640px;
    display: flex;
    gap: 8px;
}

.buscador input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    font-family: Arial, sans-serif;
}

.buscador input:focus {
    outline: none;
    border-color: #29a6b7;
}

.buscador button {
    background: #F77F00;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-family: Arial, sans-serif;
}

.buscador button:hover {
    background: #FF5F00;
}

.boton-acceso {
    background: white;
    color: #088395;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 14px;
    display: inline-block;
    text-align: center;
}

.boton-acceso:hover {
    background: #F77F00;
    color: white;
}

/* ===== Menú usuario ===== */
.usuario {
    display: flex;
    gap: 14px;
    align-items: center;
}

.enlace-ayuda {
    color: white;
    text-decoration: none;
    font-size: 14px;
}

.enlace-ayuda:hover {
    color: #FF8C00;
}

.usuario-menu {
    position: relative;
}

.usuario-pildora {
    display: inline-block;
    padding: 10px 18px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
    background: #fff;
    white-space: nowrap;
}

.usuario-menu:hover .usuario-pildora {
    border-color: #29a6b7;
}

.desplegable {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 6px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    min-width: 170px;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all 0.18s ease;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    z-index: 10;
}

.usuario-menu:hover .desplegable {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.desplegable a {
    display: block;
    padding: 12px 18px;
    color: #1a1a1a;
    text-decoration: none;
    font-size: 14px;
}

.desplegable a:hover {
    background: #29a6b7;
    color: #fff;
}

/* ===== Hamburguesa móvil ===== */
.cabecera-izquierda {
    display: flex;
    align-items: center;
    gap: 12px;
}

.boton-menu {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 26px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    font-family: Arial, sans-serif;
}

.boton-menu:hover {
    color: #FF8C00;
}

.menu-movil {
    display: none;
    background: #088395;
    padding: 8px 20px 16px 20px;
}

.menu-movil-titulo {
    display: block;
    color: white;
    font-size: 12px;
    text-transform: uppercase;
    opacity: 0.7;
    margin-top: 14px;
    margin-bottom: 4px;
}

.menu-movil a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 10px 0;
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.menu-movil a:hover,
.menu-movil a.activa {
    color: #FF8C00;
}

/* ===== Detalle de producto ===== */
.producto-detalle {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 50px;
    align-items: start;
}

.producto-imagen {
    background: #e6e6e6;
    border-radius: 12px;
    height: 540px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.producto-imagen img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.producto-info {
    display: flex;
    flex-direction: column;
}

.producto-nombre {
    font-size: 36px;
    text-align: center;
    margin-bottom: 14px;
}

.producto-meta {
    text-align: center;
    color: #888;
    font-size: 14px;
    margin-bottom: 18px;
}

.producto-precio {
    text-align: center;
    font-size: 26px;
    font-weight: bold;
    color: #FF8C00;
    margin-bottom: 26px;
}

.producto-descripcion {
    color: #444;
    font-size: 15px;
    line-height: 1.7;
    text-align: justify;
    margin-bottom: 40px;
}

.producto-acciones {
    display: flex;
    align-items: center;
    gap: 24px;
}

.boton-compra {
    flex: 1;
    background: #1a1a1a;
    color: #fff;
    text-decoration: none;
    text-align: center;
    padding: 18px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
}

.boton-compra:hover {
    background: #29a6b7;
}

.boton-favorito {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    width: 64px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #1a1a1a;
    transition: all 0.18s ease;
}

.boton-favorito:hover {
    border-color: #e8502a;
    color: #e8502a;
}

.boton-favorito.activo {
    color: #e8502a;
    border-color: #e8502a;
}

/* ===== Pie ===== */
footer {
    background: #088395;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    padding: 20px;
}

footer img {
    height: 30px;
    margin-bottom: 8px;
}

footer p {
    color: white;
    font-size: 13px;
}

/* Responsive */
@media (max-width: 900px) {
    .producto-detalle {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .producto-imagen {
        height: 360px;
    }

    .producto-nombre {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .cabecera-interior {
        flex-direction: column;
        gap: 12px;
    }

    .buscador {
        width: 100%;
        max-width: none;
    }

    /* La cabecera-izquierda hace de marco: el logo se centra y la
       hamburguesa se ancla a la esquina sin empujarlo. */
    .cabecera-izquierda {
        position: relative;
        width: 100%;
        justify-content: center;
    }

    .boton-menu {
        display: inline-block;
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
    }

    .usuario {
        display: none;
    }

    .menu-movil.abierto {
        display: block;
    }

    .producto-imagen {
        height: 280px;
    }

    .producto-nombre {
        font-size: 24px;
    }

    .producto-acciones {
        flex-wrap: wrap;
        gap: 14px;
    }

    .boton-compra {
        flex: 1 1 100%;
    }
}

/* Aviso */
.aviso {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #1a1a1a;
    color: #fff;
    padding: 14px 22px;
    border-radius: 12px;
    font-size: 15px;
    font-family: Arial, sans-serif;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}
.aviso-visible { opacity: 1; transform: translateY(0); }
.aviso-correcto { background: #29a6b7; }
.aviso-error { background: #e8502a; }