:root {
    color-scheme: light dark;
    --bg: #f6f7f9;
    --surface: #ffffff;
    --text: #1b2330;
    --muted: #5d6877;
    --border: #dde1e7;
    --accent: #0b5cad;
    --accent-text: #ffffff;
    --freight: #8a4b00;
    --freight-bg: #fdecd2;
    --charter: #6a1f9a;
    --charter-bg: #f1e2fb;
    --warn: #7a5200;
    --warn-bg: #fff4d6;
    --error: #9b1c1c;
    --error-bg: #fde4e4;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #12161c;
        --surface: #1b212a;
        --text: #e6e9ee;
        --muted: #9aa5b4;
        --border: #2f3844;
        --accent: #5aa7f0;
        --accent-text: #0c1117;
        --freight: #f2b36a;
        --freight-bg: #3a2810;
        --charter: #d7a8f5;
        --charter-bg: #2e1c3d;
        --warn: #f0cf7a;
        --warn-bg: #3a3012;
        --error: #f5a3a3;
        --error-bg: #3d1a1a;
    }
}

* { box-sizing: border-box; }

body {
    -webkit-text-size-adjust: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }

.wrap { max-width: 56rem; margin: 0 auto; padding: 0 max(1rem, env(safe-area-inset-right)) 0 max(1rem, env(safe-area-inset-left)); }

.site-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; min-height: 3rem; font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 3rem; padding: 0 .5rem; margin-left: .25rem; }

main { padding: 1.5rem 0 3rem; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 1.75rem 0 .5rem; }
.lead { color: var(--muted); margin: 0 0 1.25rem; }
.muted { color: var(--muted); }

.search { display: flex; gap: .5rem; margin-bottom: 1rem; }
.search input[type=search] { flex: 1; min-width: 0; }
input, select, button { font: inherit; }
input[type=search], input[type=date] {
    padding: .6rem .75rem; border: 1px solid var(--border); border-radius: .5rem;
    background: var(--surface); color: var(--text);
}
button, .button {
    padding: .6rem 1rem; border: 0; border-radius: .5rem; cursor: pointer;
    background: var(--accent); color: var(--accent-text); font-weight: 600; text-decoration: none;
}
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: .75rem; }
.station-list { list-style: none; margin: 0; padding: 0; }
.station-list li + li { border-top: 1px solid var(--border); }
.station-list a { display: flex; justify-content: space-between; padding: .85rem 1rem; text-decoration: none; color: var(--text); }
.station-list a:hover { background: var(--bg); }
.code { color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: .05em; }

.notice { padding: .85rem 1rem; border-radius: .5rem; margin: 0 0 1rem; }
.notice.warn { background: var(--warn-bg); color: var(--warn); }
.notice.error { background: var(--error-bg); color: var(--error); }
.empty { padding: 2rem 1rem; text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--text); margin-bottom: .25rem; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* Previous day | date (opens a picker) | next day */
.day-nav { position: relative; display: grid; grid-template-columns: 3rem 1fr 3rem; gap: .5rem; align-items: start; max-width: 28rem; margin-bottom: 1rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem; }
.button.icon { font-size: 1.25rem; padding: 0; }
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.date-picker { background: var(--surface); border: 1px solid var(--border); border-radius: .5rem; }
.date-picker summary { min-height: 2.75rem; display: flex; align-items: center; justify-content: center; font-weight: 600; cursor: pointer; list-style: none; padding: 0 .75rem; }
.date-picker summary::-webkit-details-marker { display: none; }
.date-picker form { position: absolute; left: 0; right: 0; top: calc(2.75rem + .25rem); z-index: 5; display: flex; flex-wrap: wrap; gap: .5rem; padding: .75rem; background: var(--surface); border: 1px solid var(--border); border-radius: .5rem; box-shadow: 0 6px 18px rgb(0 0 0 / .18); }
.date-picker input[type=date] { flex: 1 1 10rem; min-height: 2.75rem; }
.date-picker button { min-height: 2.75rem; }

.tabs { display: flex; gap: .5rem; margin-bottom: 1rem; overflow-x: auto; scrollbar-width: none; }
.tabs a { flex: none; display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 1rem; border-radius: 999px; text-decoration: none; border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.tabs a[aria-current=page] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.tabs .short { display: none; }
.jump { margin: 0 0 .75rem; }
.jump a { display: inline-flex; align-items: center; min-height: 2.75rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .7rem 1rem; vertical-align: top; }
thead th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); border-bottom: 1px solid var(--border); }
tbody tr + tr td { border-top: 1px solid var(--border); }
td.time { font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }

.badge { display: inline-block; padding: .05rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 600; margin-left: .35rem; }
.badge.freight { background: var(--freight-bg); color: var(--freight); }
.badge.charter { background: var(--charter-bg); color: var(--charter); }
.badge.maybe { background: var(--warn-bg); color: var(--warn); }

.site-footer { border-top: 1px solid var(--border); padding: 1rem 0 calc(2rem + env(safe-area-inset-bottom)); color: var(--muted); font-size: .875rem; }
.prose p, .prose li { max-width: 42rem; }

@media (max-width: 40rem) {
    .tabs .long { display: none; }
    .tabs .short { display: inline; }

    /* Each train is a compact card: time and train number on one line, then route, then notes. */
    thead { position: absolute; left: -9999px; }
    table, tbody { display: block; }
    tbody tr { display: grid; grid-template-columns: auto 1fr; column-gap: .75rem; padding: .75rem 1rem; }
    tbody tr + tr { border-top: 1px solid var(--border); }
    td { display: block; padding: 0; border: 0; min-width: 0; }
    tbody tr + tr td { border-top: 0; }
    td.time { font-size: 1.2rem; }
    td.train { align-self: center; }
    td.route, td.notes { grid-column: 1 / -1; overflow-wrap: anywhere; }
    td.notes { color: var(--muted); font-size: .9rem; }
}

.tabs .count { margin-left: .35em; color: inherit; opacity: .85; }

@media (max-width: 22rem) {
    .tabs { gap: .35rem; }
    .tabs a { padding: 0 .7rem; }
}