/* Explain: Strong, industrial components for construction site */
.site-header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-soft);
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.section-kicker::before {
    display: inline-block;
    width: 2rem;
    height: 4px;
    background: var(--accent-color);
    content: "";
}

.industrial-frame {
    position: relative;
    background: var(--primary-color);
    padding: 0.5rem;
}

.industrial-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-1rem, -1rem);
    transition: transform 0.3s ease;
}

.industrial-frame:hover img {
    transform: translate(-0.5rem, -0.5rem);
}

.industrial-frame-large {
    height: min(70vh, 600px);
    min-height: 450px;
}

.industrial-frame-medium {
    height: 500px;
    max-width: 450px;
}

.quiet-detail,
.amenity-row,
.contact-note {
    border-left: 3px solid var(--accent-color);
    background: var(--surface-color);
    padding: 1.25rem 1.5rem;
}

.quiet-detail span {
    display: inline-flex;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.quiet-detail p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.class-card {
    min-height: 360px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 2rem;
    transition: box-shadow 300ms ease, transform 300ms ease;
}

.class-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.amenity-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.25rem;
}

.amenity-square {
    width: 1rem;
    height: 1rem;
    margin-top: 0.3rem;
    background: var(--accent-color);
}

.booking-form,
.booking-overlay-panel {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    box-shadow: var(--shadow-soft);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-status.success {
    color: #166534;
}

.form-status.error {
    color: #991B1B;
}

.mobile-book-bar {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 45;
    border-top: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.98);
    padding: 0.85rem 1rem calc(0.85rem + env(safe-area-inset-bottom));
    backdrop-filter: blur(18px);
}

.booking-overlay {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: none;
    overflow-y: auto;
    background: rgba(17, 24, 39, 0.7);
    padding: 1rem;
}

.booking-overlay.is-open {
    display: block;
}

.booking-overlay-panel {
    min-height: calc(100vh - 2rem);
}

@media (max-width: 767px) {
    .industrial-frame-large,
    .industrial-frame-medium {
        height: 400px;
        min-height: 0;
    }
    .industrial-frame img {
        transform: translate(-0.5rem, -0.5rem);
    }
}