.section-white-clean {
    background: #ffffff;
    padding: 120px 0;
}

.container-narrow {
    max-width: 750px; /* Tighter width for better reading rhythm */
    margin: 0 auto;
    padding: 0 25px;
}

.efficiency-narrative {
    display: flex;
    flex-direction: column;
    gap: 70px; /* Breathing room between points */
}

.info-block h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--logo-green);
    margin-bottom: 15px;
    font-weight: 800;
}

.info-block p {
    font-size: 1.1rem;
    line-height: 1.75;
    color: #666;
}


/* Mobile Responsiveness */
@media (max-width: 768px) {
    .section-white-clean { padding: 60px 0; }
    .efficiency-narrative { gap: 45px; }
    .info-block p { font-size: 1.05rem; }
    .technical-summary { padding: 30px 20px; }
}


.eff-intro {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 50px;
    color: #1a1a1a;
    border-left: 3px solid var(--logo-green);
    padding-left: 25px;
}

/* Horizontal Data Strip */
.insulation-data-strip {
    display: flex;
    background: #f8f8f8;
    margin-top: 15px;
    border-radius: 4px;
    overflow: hidden;
}

.data-point {
    flex: 1;
    padding: 15px;
    text-align: center;
    border-right: 1px solid #eee;
}
.data-point:last-child { border-right: none; }
.data-point span { display: block; font-size: 0.7rem; text-transform: uppercase; color: #888; }
.data-point strong { font-size: 1.1rem; color: var(--black); }



/* Mobile compression */
@media (max-width: 600px) {
    .flex-content { flex-direction: column; align-items: flex-start; }
    .data-point { border-right: none; border-bottom: 1px solid #eee; text-align: left; padding: 10px 15px; }
}



.flex-content-subtle {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-top: 10px;
}

.spec-highlight {
    border: 1px solid #eee; /* Very subtle border */
    border-left: 3px solid var(--logo-green); /* The only 'pop' of color */
    padding: 15px 25px;
    min-width: 160px;
    background: #fafafa;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.spec-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: #888;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.spec-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1;
}

.spec-unit {
    font-size: 0.65rem;
    color: #aaa;
    margin-top: 4px;
}