:root {
    --det-bg: #f8fafc;
    --det-dark: #1b4332;
    --det-blue: #0077b6;
    --det-green: #52b788;
    --det-white: #ffffff;
}

.det-body-especifico {
    background-color: var(--det-bg);
    margin: 0;
    padding-top: 100px; /* Espacio para el header fijo */
    font-family: 'Segoe UI', sans-serif;
}

/* --- Contenedor Principal (Evita columnas extrañas) --- */
.det-product-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex !important;
    flex-direction: row !important; /* Fuerza horizontal en escritorio */
    gap: 40px;
    padding: 20px;
    padding-top: 50px;
}

/* --- Galería --- */
.det-gallery {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.det-photo-item {
    background: var(--det-white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.det-photo-item img {
    width: 100%;
    display: block;
    object-fit: cover;
}

.det-photo-caption {
    padding: 15px;
    font-size: 0.9rem;
    color: #64748b;
    text-align: center;
    border-top: 1px solid #f1f5f9;
}

/* --- Panel de Información --- */
.det-info-panel {
    flex: 0 0 400px; /* Ancho fijo para el panel lateral */
    position: sticky;
    top: 120px;
    height: fit-content;
}


.det-info-panel h1.det-main-title {
    font-family: 'Plus Jakarta Sans', sans-serif !important;
    color: var(--det-dark) !important; /* No será blanco */
    font-size: 2.5rem !important;
    font-weight: 800 !important;
    text-align: left !important;
    margin: 10px 0 !important;
    line-height: 1.2 !important;
    letter-spacing: -1px !important;
}

.det-category-tag {
    color: var(--det-blue);
    text-transform: uppercase;
    font-weight: 800;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.det-price-tag {
    font-size: 2rem;
    font-weight: 800;
    color: var(--det-dark);
    margin-bottom: 20px;
}

.det-description {
    line-height: 1.6;
    color: #475569;
    margin-bottom: 30px;
}

/* --- Tallas --- */
.det-selector-label {
    display: block;
    font-weight: 700;
    margin-bottom: 15px;
}

.det-size-grid {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
}

.det-size-option {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    transition: 0.3s;
}

.det-size-option:hover {
    border-color: var(--det-blue);
}

.det-size-option.det-active {
    background: var(--det-blue);
    color: white;
    border-color: var(--det-blue);
}

/* --- Botón --- */
.det-add-to-cart {
    width: 100%;
    padding: 18px;
    background: var(--det-dark);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
    margin-bottom: 40px;
}

.det-add-to-cart:hover {
    background: var(--det-blue);
    transform: translateY(-2px);
}

/* --- Specs --- */
.det-tech-specs {
    border-top: 1px solid #e2e8f0;
    padding-top: 20px;
}

.det-spec-item {
    display: flex !important;
    justify-content: space-between !important;
    padding: 10px 0 !important;
    font-size: 0.9rem !important;
    border-bottom: 1px solid #f1f5f9 !important;
}

.det-spec-name {
    font-weight: 700;
    color: #64748b;
}

/* Responsivo */
@media (max-width: 900px) {
    .det-product-container {
        flex-direction: column !important;
    }
    .det-info-panel {
        flex: none;
        position: relative;
        top: 0;
    }
}