:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: #dbeafe;
    --danger: #dc2626;
    --good: #15803d;
    --warn-bg: #fef3c7;
    --warn-text: #92400e;
    --info-bg: #e0f2fe;
    --info-text: #075985;
    --error-bg: #fee2e2;
    --error-text: #991b1b;
    --radius: 12px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 2px 8px rgba(15, 23, 42, .04);
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f172a;
        --surface: #1e293b;
        --text: #e2e8f0;
        --muted: #94a3b8;
        --border: #334155;
        --primary: #3b82f6;
        --primary-hover: #60a5fa;
        --primary-soft: #1e3a8a;
        --good: #4ade80;
        --warn-bg: #422006;
        --warn-text: #fcd34d;
        --info-bg: #0c4a6e;
        --info-text: #bae6fd;
        --error-bg: #450a0a;
        --error-text: #fca5a5;
        --shadow: none;
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

a { color: var(--primary); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .75rem; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.05rem; margin-top: 1.25rem; }
h1:focus { outline: none; }
p { margin: 0 0 .75rem; }

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: .75rem 1rem;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.brand-icon { margin-right: .25rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 1rem; }

.muted { color: var(--muted); }
.small { font-size: .875rem; }

/* Cards & layout */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    margin-bottom: 1rem;
}
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.narrow-card { max-width: 560px; margin-left: auto; margin-right: auto; }
.muted-card { color: var(--muted); }
.muted-card p { margin: 0; }

.grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 1rem; align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: minmax(0, 1fr); } }

.hero { max-width: 720px; margin: 1rem auto 2rem; text-align: center; }
.hero h1 { font-size: 2rem; }
.hero p { color: var(--muted); font-size: 1.05rem; }

.trip-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.trip-head h1 { margin-bottom: .25rem; }
.trip-meta { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; color: var(--muted); margin: 0; }

.badge {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border-radius: 999px;
    padding: .15rem .65rem;
    font-size: .8rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge-soft { background: var(--primary-soft); color: var(--primary); font-size: .7rem; padding: .05rem .5rem; margin-left: .25rem; }
@media (prefers-color-scheme: dark) { .badge-soft { color: #bfdbfe; } }

/* Forms */
.form { display: flex; flex-direction: column; gap: .9rem; }
.field { display: flex; flex-direction: column; gap: .3rem; }
.field label, fieldset legend { font-weight: 600; font-size: .9rem; }
.field-inline { flex-direction: row; align-items: center; flex-wrap: wrap; gap: .75rem; }
.field-row { display: flex; gap: 1rem; flex-wrap: wrap; }
fieldset { border: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .3rem; }
.hint { color: var(--muted); font-size: .8rem; }
.indent { padding-left: 1.6rem; display: flex; flex-direction: column; gap: .6rem; }

input[type=text], input[type=number], input[type=date], input:not([type]) {
    font: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .55rem .7rem;
    width: 100%;
    min-width: 0;
}
input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
input.narrow { width: 9rem; }
input[type=checkbox] { width: 1.1rem; height: 1.1rem; accent-color: var(--primary); margin: 0; }
.check { display: flex; align-items: center; gap: .55rem; cursor: pointer; }

.invalid { outline: 1px solid var(--danger) !important; }
.validation-message { color: var(--danger); font-size: .85rem; }

.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.btn {
    font: inherit;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 8px;
    padding: .5rem 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: var(--primary); }
.btn:disabled { opacity: .6; cursor: default; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-small { padding: .25rem .6rem; font-size: .8rem; }
.btn-danger { color: var(--danger); }
.btn-danger:hover:not(:disabled) { border-color: var(--danger); }
.btn-block { width: 100%; }

.alert { border-radius: 8px; padding: .6rem .8rem; margin: 0 0 .75rem; font-size: .9rem; }
.alert-error { background: var(--error-bg); color: var(--error-text); }
.alert-warn { background: var(--warn-bg); color: var(--warn-text); }
.alert-info { background: var(--info-bg); color: var(--info-text); }

/* Share links */
.links.highlight { border-color: var(--primary); }
.link-row { display: grid; grid-template-columns: 12rem minmax(0, 1fr) auto; gap: .5rem; align-items: center; margin-top: .5rem; }
.link-row label { font-weight: 600; font-size: .9rem; }
.link-row input { font-family: ui-monospace, monospace; font-size: .85rem; }
@media (max-width: 640px) { .link-row { grid-template-columns: minmax(0, 1fr) auto; } .link-row label { grid-column: 1 / -1; } }

/* People */
.people { list-style: none; margin: 0; padding: 0; }
.person { padding: .75rem 0; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: .75rem; align-items: flex-start; }
.person:first-child { border-top: none; padding-top: 0; }
.person > .form { flex: 1; }
.person-main { display: flex; gap: .65rem; min-width: 0; }
.person-main > div { min-width: 0; overflow-wrap: anywhere; }
.person-icon { font-size: 1.3rem; line-height: 1.4; }
.person-actions { display: flex; gap: .35rem; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }

/* Map */
.map-card { padding: 0; overflow: hidden; }
.map { height: 420px; width: 100%; z-index: 0; }
@media (max-width: 640px) { .map { height: 320px; } }
.map-pin { background: none; border: none; }
.map-pin span {
    display: flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 50%;
    border: 2px solid #fff; box-shadow: 0 1px 4px rgba(0,0,0,.4);
    font-size: 14px;
}

/* Result */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: .5rem; margin: .5rem 0 1rem; }
.stat { background: var(--bg); border-radius: 10px; padding: .6rem .75rem; display: flex; flex-direction: column; }
.stat-value { font-size: 1.35rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-label { font-size: .78rem; color: var(--muted); }
.stat-good .stat-value { color: var(--good); }

.cars { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .75rem; }
.car { border: 1px solid var(--border); border-left: 5px solid var(--car-color); border-radius: 10px; padding: .75rem .9rem; }
.car header { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem .6rem; }
.car header .muted { font-size: .8rem; }
.car-dot { display: none; }
.car footer { font-size: .85rem; margin-top: .25rem; }
.route { margin: .5rem 0 0; padding-left: 1.3rem; font-size: .92rem; }
.route li { margin: .1rem 0; }
.train { margin: 0 0 1rem; padding-left: 1.2rem; }
.train li { margin: .2rem 0; }

#blazor-error-ui {
    background: var(--warn-bg);
    color: var(--warn-text);
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

.blazor-error-boundary { background: var(--error-bg); color: var(--error-text); padding: 1rem; border-radius: 8px; }
.blazor-error-boundary::after { content: "Ein Fehler ist aufgetreten."; }