/* =============================
   ESTILOS PARA CASO DE ESTUDIO MÓVIL
   ============================= */

/* ===== Encabezado del Proyecto ===== */
.project-header {
    text-align: center;
    padding: 10rem 2rem;
    background-color: var(--color-gray);
    border-bottom: 1px solid #ddd;
}

.project-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* ===== Métricas Clave ===== */
.key-metrics {
    display: flex;
    justify-content: space-around;
    gap: 1.5rem;
    text-align: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.metric-card {
    background: var(--color-light);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.07);
    flex-grow: 1;
    min-width: 200px;
}

.metric-card .value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-primary);
}

.metric-card .label {
    font-size: 1rem;
    color: #555;
}

/* ===== Problema vs Solución ===== */
.challenge-solution {
    margin-bottom: 4rem;
}

.pvss-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--color-gray);
    padding: 2rem;
    border-radius: 10px;
}

.pvss-column h3 {
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.pvss-column ul {
    list-style-type: none;
    padding-left: 0;
}

.pvss-column li {
    margin-bottom: 1rem;
    line-height: 1.5;
}

/* ===== Galería de Imágenes ===== */
.project-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 1rem;
    margin-bottom: 4rem;
}

.project-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.project-gallery img:hover {
    transform: scale(1.03);
}

.project-gallery img:nth-child(1) {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
}

.project-gallery img:nth-child(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
}

.project-gallery img:nth-child(3) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
}

/* ===== Testimonio / Reflexión ===== */
.testimonial {
    background: var(--color-primary);
    color: var(--color-light);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 4rem;
}

.testimonial blockquote {
    font-size: 1.3rem;
    font-style: italic;
    border: none;
    margin: 0 0 1rem 0;
}

.testimonial footer {
    font-weight: 700;
}

/* ===== Navegación entre Proyectos ===== */
.project-nav {
    display: flex;
    justify-content: space-between;
    max-width: 900px;
    margin: 4rem auto;
    padding: 0 2rem;
}

/* ===== Responsividad ===== */
@media (max-width: 768px) {
    .pvss-grid {
        grid-template-columns: 1fr;
    }

    .project-gallery {
        grid-template-columns: 1fr;
    }

    .project-gallery img:nth-child(1),
    .project-gallery img:nth-child(2),
    .project-gallery img:nth-child(3) {
        grid-column: auto;
        grid-row: auto;
    }
}

/* -- NUEVO BLOQUE PARA MÓVILES PEQUEÑOS -- */
@media (max-width: 480px) {
    .project-header {
        padding: 10rem 1rem;
        /* Aún menos espaciado */
    }

    .project-header h1 {
        font-size: 1.8rem;
        /* Tamaño ideal para móvil */
    }
}