.op-fov-lane-calculator {
    --op-fov-text: #17202a;
    --op-fov-muted: #5f6b76;
    --op-fov-border: #d9e0e7;
    --op-fov-panel: #ffffff;
    --op-fov-soft: #f5f7f9;
    --op-fov-road: #7b8187;
    --op-fov-road-line: #eef2f6;
    --op-fov-sensor: #111827;
    --op-fov-accent: #008c95;
    --op-fov-coverage: #f97316;
    color: var(--op-fov-text);
    font-family: inherit;
    max-width: 1120px;
}

.op-fov-lane-calculator * {
    box-sizing: border-box;
}

.op-fov__shell {
    border: 1px solid var(--op-fov-border);
    border-radius: 8px;
    background: var(--op-fov-panel);
    overflow: hidden;
}

.op-fov__controls {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    padding: 18px;
    background: var(--op-fov-soft);
    border-bottom: 1px solid var(--op-fov-border);
}

.op-fov__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.op-fov__field label {
    color: var(--op-fov-muted);
    display: flex;
    align-items: flex-end;
    font-size: 13px;
    font-weight: 700;
    min-height: 34px;
    line-height: 1.25;
    margin: 0;
}

.op-fov__field input,
.op-fov__field select {
    width: 100%;
    min-height: 42px;
    border: 1px solid #c8d0d8;
    border-radius: 6px;
    background: #fff;
    color: var(--op-fov-text);
    font: inherit;
    line-height: 1.3;
    margin: 0;
    padding: 8px 10px;
}

.op-fov__field input:focus,
.op-fov__field select:focus {
    outline: 2px solid rgba(0, 140, 149, 0.24);
    border-color: var(--op-fov-accent);
}

.op-fov__body {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
    gap: 0;
}

.op-fov__visual {
    min-width: 0;
    padding: 18px;
    border-right: 1px solid var(--op-fov-border);
}

.op-fov__view-toggle {
    display: inline-flex;
    gap: 4px;
    margin-bottom: 12px;
    padding: 3px;
    border: 1px solid var(--op-fov-border);
    border-radius: 6px;
    background: var(--op-fov-soft);
}

.op-fov__view-button,
.op-fov__zoom-button {
    min-height: 34px;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--op-fov-muted);
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    padding: 6px 12px;
}

.op-fov__zoom-button {
    min-width: 34px;
    padding: 6px 8px;
}

.op-fov__view-button.is-active {
    background: #fff;
    color: var(--op-fov-text);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.12);
}

.op-fov__view-button:focus,
.op-fov__zoom-button:focus {
    outline: 2px solid rgba(0, 140, 149, 0.24);
    outline-offset: 2px;
}

.op-fov__visual svg {
    display: block;
    width: 100%;
    aspect-ratio: 5 / 4;
    height: auto;
    min-height: 0;
    border: 1px solid var(--op-fov-border);
    border-radius: 6px;
    background: #fbfcfd;
}

.op-fov__results {
    padding: 18px;
}

.op-fov__results h3 {
    margin: 0 0 12px;
    font-size: 18px;
    line-height: 1.25;
}

.op-fov__output-group {
    margin-bottom: 16px;
}

.op-fov__output-group h4 {
    margin: 0 0 8px;
    color: var(--op-fov-muted);
    font-size: 13px;
    font-weight: 800;
    line-height: 1.25;
    text-transform: uppercase;
}

.op-fov__summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.op-fov__metric {
    border: 1px solid var(--op-fov-border);
    border-radius: 6px;
    padding: 10px;
    background: #fff;
}

.op-fov__metric-label {
    display: block;
    color: var(--op-fov-muted);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 4px;
}

.op-fov__metric-value {
    display: block;
    font-size: 21px;
    font-weight: 800;
    line-height: 1.15;
}

.op-fov__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.op-fov__table th,
.op-fov__table td {
    border-bottom: 1px solid var(--op-fov-border);
    padding: 8px 6px;
    text-align: left;
    vertical-align: top;
}

.op-fov__table th {
    color: var(--op-fov-muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.op-fov__note {
    color: var(--op-fov-muted);
    font-size: 13px;
    line-height: 1.45;
    margin-top: 14px;
}

.op-fov__error {
    display: none;
    margin: 0;
    padding: 12px 18px;
    border-bottom: 1px solid #f2c0c0;
    background: #fff1f1;
    color: #8a1f1f;
    font-weight: 700;
}

.op-fov__error.is-visible {
    display: block;
}

.op-fov__legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    margin-top: 12px;
    color: var(--op-fov-muted);
    font-size: 12px;
    line-height: 1.3;
}

.op-fov__legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.op-fov__swatch {
    display: inline-block;
    width: 16px;
    height: 4px;
    border-radius: 2px;
}

.op-fov__swatch--ellipse {
    background: var(--op-fov-accent);
}

.op-fov__swatch--coverage {
    background: var(--op-fov-coverage);
}

.op-fov__swatch--road {
    background: var(--op-fov-road);
}

.op-fov__swatch--center {
    width: 10px;
    height: 10px;
    border: 1px solid #111827;
    border-radius: 999px;
    background: #eef2f6;
}

@media (max-width: 860px) {
    .op-fov__controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .op-fov__body {
        grid-template-columns: 1fr;
    }

    .op-fov__visual {
        border-right: 0;
        border-bottom: 1px solid var(--op-fov-border);
    }
}

@media (max-width: 560px) {
    .op-fov__controls {
        grid-template-columns: 1fr;
        padding: 14px;
    }

    .op-fov__visual,
    .op-fov__results {
        padding: 14px;
    }

    .op-fov__summary {
        grid-template-columns: 1fr;
    }
}