/* ============================================================
   Values Section — Propuesta de Valor
   ============================================================ */

/* Section wrapper with background image */
.values-section {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.values-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("/images/transicion-a-energias-limpias.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    filter: brightness(0.35);
    z-index: 0;
}

/* Light frosted overlay to keep text readable with brand colors */
.values-overlay {
    position: relative;
    z-index: 1;
}

/* ── Layout: left header | right 2×2 grid ── */
.values-layout {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

@media (min-width: 992px) {
    .values-layout {
        grid-template-columns: 5fr 7fr;
        gap: var(--spacing-3xl);
    }
}

/* ── Left column ── */
.values-intro {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.values-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent-gradient);
}

.values-label-line {
    display: inline-block;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-gradient));
    border-radius: var(--border-radius-full);
    flex-shrink: 0;
}

.values-heading {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1.25;
    margin: 0;
}

.values-heading .highlight {
    color: var(--color-primary-light);
}

.values-intro-text {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin: 0;
}

/* ── Right column: 2×2 grid ── */
.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* Individual value card */
.value-item {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 3px solid var(--color-accent-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    backdrop-filter: blur(6px);
    transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.value-item:hover {
    background: rgba(0, 119, 182, 0.18);
    border-color: rgba(0, 167, 255, 0.35);
    border-bottom-color: var(--color-primary-light);
    transform: translateY(-4px);
}

/* Icon circle */
.value-item-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius-full);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-gradient));
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xs);
    flex-shrink: 0;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-item:hover .value-item-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 18px rgba(46, 204, 113, 0.5);
}

.value-item-icon .material-icons {
    font-size: 1.5rem;
    color: var(--color-white);
}

.value-item-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin: 0;
    line-height: 1.3;
}

.value-item-desc {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    margin: 0;
}

/* ── Responsive ── */
@media (max-width: 575px) {
    .values-grid {
        grid-template-columns: 1fr;
    }

    .values-heading {
        font-size: var(--font-size-2xl);
    }
}