/* Explain: Interior studio cards, buttons, forms, and image treatments */
.btn-clay {
    border: 1px solid var(--primary-color);
    background: var(--primary-color);
    color: var(--cream-color);
    box-shadow: 0 16px 30px rgba(35, 67, 100, 0.22);
    transition: transform 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.btn-clay:hover {
    background: var(--primary-hover);
    box-shadow: 0 18px 40px rgba(35, 67, 100, 0.30);
    transform: translateY(-2px);
}

.btn-quiet {
    border: 1px solid rgba(235, 236, 239, 0.58);
    color: var(--cream-color);
    background: rgba(235, 236, 239, 0.08);
    backdrop-filter: blur(12px);
    transition: background 220ms ease, transform 220ms ease;
}

.btn-quiet:hover {
    background: rgba(235, 236, 239, 0.16);
    transform: translateY(-2px);
}

.arch-frame {
    border-radius: var(--radius-arch);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.presentation-card {
    border: 1px solid rgba(209, 213, 219, 0.74);
    background: rgba(235, 236, 239, 0.78);
    box-shadow: var(--shadow-paper);
    backdrop-filter: blur(18px);
}

.service-card {
    border: 1px solid rgba(209, 213, 219, 0.8);
    background: linear-gradient(145deg, rgba(235, 236, 239, 0.96), rgba(226, 228, 232, 0.82));
    transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}

.service-card:hover {
    border-color: rgba(66, 99, 133, 0.52);
    box-shadow: var(--shadow-soft);
    transform: translateY(-6px);
}

.room-card {
    background: var(--cream-color);
    box-shadow: var(--shadow-paper);
    transition: transform 260ms ease, box-shadow 260ms ease;
}

.room-card:hover {
    box-shadow: var(--shadow-soft);
    transform: translateY(-5px);
}

.material-swatch {
    min-height: 10rem;
    border: 1px solid rgba(35, 67, 100, 0.08);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.34), var(--shadow-paper);
}

.process-step {
    border-inline-start: 1px solid rgba(66, 99, 133, 0.28);
}

.inquiry-field {
    border: 1px solid rgba(209, 213, 219, 0.92);
    background: rgba(235, 236, 239, 0.9);
    color: var(--text-color);
}

.inquiry-field:focus {
    border-color: var(--clay-color);
    box-shadow: 0 0 0 4px rgba(66, 99, 133, 0.12);
}

.faq-panel {
    border: 1px solid rgba(209, 213, 219, 0.82);
    background: rgba(235, 236, 239, 0.72);
    box-shadow: 0 10px 28px rgba(35, 67, 100, 0.06);
}