.calculator-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1.5rem;
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.calculator-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    background-color: var(--surface);
}

.calculator-header h1 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
}

.calculator-note {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-sub);
    line-height: 1.4;
}

.calculator-tabs {
    display: flex;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.25rem;
}

.tab-button {
    background: none;
    border: none;
    padding: 0.4rem 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-sub);
    cursor: pointer;
    position: relative;
}

.tab-button.active {
    color: var(--text-main);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 999px;
}

.tab-panel {
    margin-top: 1.5rem;
    background-color: var(--surface);
}

.tab-panel[hidden] {
    display: none;
}

.amount-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
    background-color: var(--surface);
}

.amount-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 0.9rem;
    overflow: hidden;
    background-color: var(--surface-muted);
    flex-wrap: wrap;
}

.mode-button {
    border: none;
    background: transparent;
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    color: var(--text-sub);
    cursor: pointer;
}

.mode-button.active {
    background-color: rgba(37, 99, 235, 0.12);
    color: var(--primary);
}

.amount-output {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    gap: 0.25rem;
    line-height: 1.2;
    min-width: 140px;
}

.amount-output span {
    white-space: nowrap;
}

.amount-subtext {
    font-size: 0.85rem;
    color: var(--text-sub);
    font-weight: 500;
    white-space: nowrap;
}

.amount-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 0.9rem;
    border-bottom: 1px solid var(--border);
    min-height: 52px;
    background-color: var(--surface);
}

.amount-input input {
    border: none;
    padding: 0.4rem 0;
    font-size: 1.05rem;
    background: transparent;
    width: 100%;
    min-width: 0;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.amount-input input:focus {
    outline: none;
}

.amount-input span {
    white-space: nowrap;
    color: var(--text-sub);
    font-weight: 600;
}

.info-card {
    margin-top: 1.5rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    background-color: var(--surface);
}

.tab-panel[data-panel="hourly"] .info-card {
    grid-template-columns: repeat(2, 1fr);
}

.tab-panel[data-panel="hourly"] .info-card.compact-card {
    grid-template-columns: 1fr;
}

.compact-card {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.5rem;
}

.compact-card .helper-text {
    margin: 0;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    color: var(--text-main);
}

.info-item label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-sub);
    margin-bottom: 0.35rem;
}

.info-item input {
    width: 100%;
    border: none;
    background: transparent;
    font-weight: 600;
    color: var(--text-main);
    padding: 0.2rem 0;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.info-item select {
    width: 100%;
    border: none;
    background: transparent;
    font-weight: 600;
    color: var(--text-main);
    padding: 0.2rem 0;
    text-align: left;
}

.info-item input:focus,
.info-item select:focus {
    outline: none;
}

.info-item input[type="number"]::-webkit-outer-spin-button,
.info-item input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.info-item input[type="number"] {
    appearance: textfield;
}

.action-row {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-reset {
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius);
    padding: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

.detail-card {
    margin-top: 1.5rem;
    padding: 1.2rem;
    border: 1px solid var(--border);
    border-radius: 1rem;
    background-color: #ffffff;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    font-size: 0.95rem;
    color: var(--text-main);
}

.detail-row span:first-child {
    color: var(--text-sub);
}

.total-row {
    border-top: 1px solid var(--border);
    margin-top: 0.6rem;
    padding-top: 0.8rem;
    font-weight: 700;
}

.detail-note {
    margin-top: 0.8rem;
    font-size: 0.85rem;
    color: var(--text-sub);
}

.helper-text {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-sub);
    line-height: 1.5;
}


.btn-calculate {
    width: 100%;
    padding: 10px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 16px;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-calculate:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.3);
}

.net-pay {
    color: var(--primary);
}

@media (max-width: 768px) {
    .amount-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .amount-output {
        align-items: flex-start;
    }

    .info-card {
        grid-template-columns: 1fr;
    }

    .compact-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .action-row {
        grid-template-columns: 1fr;
    }
}