:root {
    color-scheme: light;
    --ink: #18201d;
    --muted: #65716c;
    --line: #dce3df;
    --surface: #ffffff;
    --page: #f4f7f5;
    --primary: #166b56;
    --primary-dark: #0f4d3e;
    --accent: #c4553f;
    --warn: #9a6a08;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--page);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 15px;
    line-height: 1.45;
}

a {
    color: var(--primary-dark);
}

.shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 4px;
    font-size: 30px;
    line-height: 1.16;
}

h2 {
    margin-bottom: 14px;
    font-size: 18px;
}

.status-pill {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 9px 12px;
    color: var(--muted);
    white-space: nowrap;
}

.status-pill strong {
    color: var(--primary-dark);
}

.grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 18px;
}

.panel,
.stat,
.result {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.panel {
    padding: 18px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 18px;
}

.stat {
    padding: 14px;
}

.stat span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.stat strong {
    display: block;
    margin-top: 6px;
    font-size: 28px;
    line-height: 1;
}

.lookup-form {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr 0.9fr 0.9fr auto;
    gap: 10px;
    align-items: end;
}

label {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

input {
    width: 100%;
    margin-top: 6px;
    border: 1px solid #c8d2cd;
    border-radius: 7px;
    padding: 11px 12px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

button {
    border: 0;
    border-radius: 7px;
    padding: 12px 15px;
    background: var(--primary);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

button:hover {
    background: var(--primary-dark);
}

.alert {
    border: 1px solid #efc9bd;
    border-radius: 8px;
    background: #fff7f4;
    color: #653122;
    padding: 12px 14px;
    margin-bottom: 18px;
}

.results {
    display: grid;
    gap: 10px;
    margin-top: 16px;
}

.result {
    padding: 14px;
}

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

.flight-number {
    font-size: 20px;
    font-weight: 800;
}

.confidence {
    color: var(--muted);
    font-size: 13px;
}

.route-line {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 14px;
    align-items: center;
}

.airport-code {
    font-size: 24px;
    font-weight: 800;
}

.airport-name {
    color: var(--muted);
}

.arrow {
    color: var(--accent);
    font-weight: 900;
}

.meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 9px 0;
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

.empty {
    color: var(--muted);
    padding: 14px 0 4px;
}

code {
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #f7faf8;
    padding: 2px 5px;
}

@media (max-width: 920px) {
    .grid,
    .lookup-form,
    .stats {
        grid-template-columns: 1fr;
    }

    .topbar,
    .route-main,
    .route-line {
        align-items: stretch;
        flex-direction: column;
    }

    .route-line {
        display: block;
    }

    .arrow {
        display: block;
        margin: 8px 0;
    }
}