.calc-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 30px;
}

@media (max-width: 800px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
}

.calc-input-group {
    margin-bottom: 20px;
}

.calc-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.calc-input {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-size: 16px;
    background: white;
    color: var(--text);
    transition: border-color 0.2s;
}

.calc-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 116, 255, 0.1);
}

.calc-range-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.calc-range {
    flex: 1;
    cursor: pointer;
}

.calc-range-val {
    width: 50px;
    text-align: right;
    font-weight: 600;
    color: var(--primary);
}

.calc-result-card {
    background: #1C2E45; /* Fallback */
    background: var(--color-bg-deep);
    color: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calc-res-row {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.calc-res-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.calc-res-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.7;
    margin-bottom: 6px;
}

.calc-res-value {
    font-size: 32px;
    font-weight: 700;
    color: #4DA3FF;
}

.calc-res-value-small {
    font-size: 24px;
    font-weight: 600;
    color: white;
}