main {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

/* ===============================
   Hero
   =============================== */
.commercial-hero {
    min-height: 80vh;
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    border-radius: 24px;
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 55%),
        radial-gradient(circle at bottom right, rgba(30, 64, 175, 0.12), transparent 55%),
        linear-gradient(135deg, #f9fafb, #eff6ff);
    box-shadow: var(--shadow-lg);
    align-items: center;
    position: relative;
    overflow: hidden;
}

.commercial-hero-text {
    flex: 1.4;
    max-width: 720px;
    position: relative;
    z-index: 1;
}

.commercial-kicker {
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.commercial-hero-text h1 {
    font-size: var(--font-size-4xl);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.commercial-hero-body {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-top: 0.25rem;
}

.commercial-hero-cta {
    margin-top: var(--spacing-md);
}

.commercial-hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.commercial-hero-image::before {
    content: "";
    position: absolute;
    width: 460px;
    height: 460px;
    border-radius: 999px;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.25), transparent 65%);
    filter: blur(4px);
    z-index: 0;
}

.commercial-hero-image img {
    max-width: 100%;
    border-radius: 22px;
    box-shadow: var(--shadow-xl);
    object-fit: cover;
    position: relative;
    z-index: 1;
}

/* ===============================
   Commercial Services
   =============================== */
.commercial-services-section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
}

.commercial-section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--spacing-xl);
}

.commercial-section-header h2 {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.commercial-section-header p {
    color: var(--text-light);
}

.commercial-services-grid {
    max-width: 1080px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-lg);
}

.commercial-service-card {
    background-color: var(--bg-white);
    border-radius: 18px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

.commercial-service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(37, 99, 235, 0.06));
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.commercial-service-card h3 {
    position: relative;
    z-index: 1;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary-dark);
}

.commercial-service-desc {
    position: relative;
    z-index: 1;
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-top: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-slow), margin-top var(--transition-base);
}

.commercial-service-card.is-open .commercial-service-desc {
    margin-top: var(--spacing-xs);
    max-height: 6rem;
    opacity: 1;
}

.commercial-service-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
    background-color: #ffffff;
}

.commercial-service-card:hover::before {
    opacity: 1;
}

/* Reveal-on-scroll */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===============================
   Responsive
   =============================== */
@media (max-width: 960px) {
    .commercial-hero {
        flex-direction: column-reverse;
        padding: var(--spacing-xl);
    }

    .commercial-services-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 640px) {
    main {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    .commercial-hero-text h1 {
        font-size: var(--font-size-3xl);
    }
}