html, body {
    height: 100%;
}

body {
    margin: 0;
    background: #eef2f5;
    color: #17212b;
    font-family: Arial, Helvetica, sans-serif;
}

.app-shell {
    display: grid;
    grid-template-columns: minmax(340px, 430px) 1fr;
    min-height: 100vh;
}

.control-panel {
    background: #ffffff;
    border-right: 1px solid #d9e1e8;
    padding: 20px;
    overflow-y: auto;
}

.brand-block {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: start;
    margin-bottom: 18px;
}

.eyebrow {
    margin: 0 0 4px;
    color: #5f7080;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0;
}

h1 {
    font-size: 1.7rem;
    margin: 0;
}

h2 {
    font-size: 1rem;
    margin: 0;
}

.panel {
    border: 1px solid #dce4eb;
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 16px;
    background: #fbfcfd;
}

.map-area {
    display: grid;
    grid-template-rows: minmax(420px, 64vh) auto;
    min-width: 0;
}

#map {
    min-height: 420px;
    width: 100%;
}

.itinerary {
    padding: 18px 24px;
    overflow: auto;
}

.customer-row {
    border: 1px solid #dfe7ee;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 8px;
    background: #fff;
}

.customer-row.is-changing-location {
    border-color: #0d6efd;
    background: #eef5ff;
    box-shadow: 0 0 0 3px rgb(13 110 253 / 14%);
}

.change-location-note {
    border-left: 3px solid #0d6efd;
    color: #0b3d91;
    font-size: 0.82rem;
    margin: 0 0 8px;
    padding-left: 8px;
}

.customer-title {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-weight: 700;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.route-objective {
    background: #eef5ff;
    border: 1px solid #bdd7ff;
    border-radius: 8px;
    color: #0b3d91;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 12px;
    padding: 8px 10px;
}

.route-explanation {
    border-top: 1px solid #dfe7ee;
    margin-top: 12px;
    padding-top: 12px;
}

.route-explanation h3 {
    font-size: 0.95rem;
    margin: 0 0 4px;
}

.route-explanation p {
    color: #5b6772;
    font-size: 0.82rem;
    margin: 0 0 10px;
}

.comparison-table {
    display: grid;
    gap: 4px;
}

.comparison-row {
    align-items: center;
    background: #fff;
    border: 1px solid #dfe7ee;
    border-radius: 8px;
    display: grid;
    font-size: 0.8rem;
    gap: 6px;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 7px 8px;
}

.comparison-head {
    background: transparent;
    border: 0;
    color: #5b6772;
    font-weight: 700;
    padding-bottom: 2px;
}

.comparison-row.is-best {
    border-color: #198754;
    background: #edf8f1;
    font-weight: 700;
}

.metric {
    background: #fff;
    border: 1px solid #dfe7ee;
    border-radius: 8px;
    padding: 10px;
}

.metric strong {
    display: block;
    font-size: 1.05rem;
}

.number-marker, .start-marker {
    border-radius: 999px;
    color: #fff;
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgb(0 0 0 / 25%);
    display: grid;
    place-items: center;
    font-weight: 700;
}

.number-marker {
    background: #0d6efd;
}

.start-marker {
    background: #198754;
    font-size: 11px;
}

.number-marker.is-changing-marker,
.start-marker.is-changing-marker {
    background: #dc3545;
}

.leg {
    color: #5b6772;
    margin: 8px 0;
}

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

    .control-panel {
        border-right: 0;
        border-bottom: 1px solid #d9e1e8;
    }

    .map-area {
        grid-template-rows: 420px auto;
    }
}