.tco-calculator {
    --tco-ink: #172033;
    --tco-muted: #5c667a;
    --tco-line: #dbe2ea;
    --tco-bg: #f6f8fb;
    --tco-panel: #ffffff;
    --tco-blue: #2864b8;
    --tco-green: #27825e;
    --tco-amber: #c27a18;
    color: var(--tco-ink);
    font-family: inherit;
    margin: 32px 0;
}

.tco-calculator *,
.tco-calculator *::before,
.tco-calculator *::after {
    box-sizing: border-box;
}

.tco-calculator__header {
    align-items: end;
    border-bottom: 1px solid var(--tco-line);
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
}

.tco-calculator__eyebrow {
    color: var(--tco-muted);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.tco-calculator h2,
.tco-calculator h3,
.tco-calculator h4,
.tco-calculator p {
    margin-top: 0;
}

.tco-calculator h2 {
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.15;
    margin-bottom: 0;
}

.tco-calculator__reset {
    background: #ffffff;
    border: 1px solid var(--tco-line);
    border-radius: 6px;
    color: var(--tco-ink);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    min-height: 40px;
    padding: 8px 14px;
}

.tco-calculator__reset:hover,
.tco-calculator__reset:focus {
    border-color: var(--tco-blue);
    outline: none;
}

.tco-calculator__layout {
    display: grid;
    gap: 20px;
    grid-template-columns: minmax(280px, 0.95fr) minmax(320px, 1.05fr);
}

.tco-calculator__inputs,
.tco-calculator__results {
    min-width: 0;
}

.tco-section {
    background: var(--tco-panel);
    border: 1px solid var(--tco-line);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}

.tco-section h3 {
    background: var(--tco-bg);
    border-bottom: 1px solid var(--tco-line);
    font-size: 16px;
    margin: 0;
    padding: 12px 14px;
}

.tco-field-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 14px;
}

.tco-field {
    display: grid;
    gap: 6px;
}

.tco-field label {
    color: var(--tco-muted);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.25;
}

.tco-field input {
    border: 1px solid var(--tco-line);
    border-radius: 6px;
    color: var(--tco-ink);
    font: inherit;
    min-height: 40px;
    padding: 8px 10px;
    width: 100%;
}

.tco-field input:focus {
    border-color: var(--tco-blue);
    outline: 2px solid rgba(40, 100, 184, 0.14);
}

.tco-vehicle-tabs {
    display: flex;
    gap: 8px;
    padding: 14px 14px 0;
}

.tco-vehicle-tabs button {
    background: #ffffff;
    border: 1px solid var(--tco-line);
    border-radius: 999px;
    color: var(--tco-ink);
    cursor: pointer;
    flex: 1 1 0;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    min-height: 36px;
    padding: 7px 10px;
}

.tco-vehicle-tabs button[aria-selected="true"] {
    background: var(--tco-ink);
    border-color: var(--tco-ink);
    color: #ffffff;
}

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

.tco-calculator__summary {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 16px;
}

.tco-result-card {
    background: var(--tco-panel);
    border: 1px solid var(--tco-line);
    border-radius: 8px;
    padding: 14px;
}

.tco-result-card strong {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
}

.tco-result-card span {
    display: block;
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    line-height: 1.1;
}

.tco-result-card small {
    color: var(--tco-muted);
    display: block;
    font-size: 12px;
    margin-top: 8px;
}

.tco-result-card--best {
    border-color: var(--tco-green);
    box-shadow: inset 0 3px 0 var(--tco-green);
}

.tco-calculator__chart,
.tco-calculator__breakdown {
    background: var(--tco-panel);
    border: 1px solid var(--tco-line);
    border-radius: 8px;
    margin-bottom: 16px;
    padding: 14px;
}

.tco-chart-title {
    align-items: center;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    margin-bottom: 12px;
}

.tco-chart-title h3 {
    font-size: 16px;
    margin: 0;
}

.tco-chart-title span {
    color: var(--tco-muted);
    font-size: 13px;
}

.tco-chart svg {
    display: block;
    height: auto;
    max-width: 100%;
    overflow: visible;
    width: 100%;
}

.tco-table-wrap {
    overflow-x: auto;
}

.tco-breakdown-table {
    border-collapse: collapse;
    min-width: 640px;
    width: 100%;
}

.tco-breakdown-table th,
.tco-breakdown-table td {
    border-bottom: 1px solid var(--tco-line);
    padding: 10px 8px;
    text-align: right;
    vertical-align: top;
}

.tco-breakdown-table th:first-child,
.tco-breakdown-table td:first-child {
    color: var(--tco-muted);
    font-weight: 700;
    text-align: left;
}

.tco-breakdown-table thead th {
    color: var(--tco-ink);
    font-size: 13px;
}

.tco-breakdown-table tfoot td {
    color: var(--tco-ink);
    font-weight: 800;
}

@media (max-width: 900px) {
    .tco-calculator__layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .tco-calculator__header {
        align-items: stretch;
        flex-direction: column;
    }

    .tco-field-grid,
    .tco-calculator__summary {
        grid-template-columns: 1fr;
    }

    .tco-vehicle-tabs {
        flex-direction: column;
    }
}