.gold-calculator {
    padding: 1rem 1.25rem;
    background: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(0,0,0,.04);
}

.gc-title {
    text-align: center;
    margin-bottom: 1rem;
}

.gc-title-main {
    font-size: 1.35rem;
    font-weight: 800;
}

.gc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .9rem;
}

.gc-field {
    display: flex;
    flex-direction: column;
}

.gc-field span {
    font-size: .85rem;
    color: #666;
}

.gc-field select,
.gc-field input {
    padding: .7rem;
    border: 1px solid #e1e1e1;
    border-radius: 10px;
}

.gc-actions {
    display: flex;
    gap: .7rem;
    align-items: flex-end;
}

.gc-btn {
    padding: .75rem 1.05rem;
    border-radius: 10px;
    background: #111;
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

.gc-btn.ghost {
    background: transparent;
    color: #111;
}

.gc-result {
    margin-top: 1rem;
}

.gc-result-box {
    border: 1px solid #e6e6e6;
    border-radius: 12px;
    padding: 1rem;
}

.gc-total {
    margin-top: .6rem;
    font-size: 1.15rem;
    font-weight: 800;
}

@media (max-width: 768px) {
    .gc-grid {
        grid-template-columns: 1fr 1fr;
    }
}