:root {
    color-scheme: dark;
    --bg: #0f1117;
    --panel: #171a24;
    --line: #2a2f40;
    --text: #e8eaf6;
    --muted: #98a0c0;
    --accent: #7dd3fc;
    --ok: #7be0a5;
    --warn: #ffc857;
    --bad: #ff8a8a;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font:
        16px / 1.5 system-ui,
        sans-serif;
}
a {
    color: var(--accent);
}
h1 {
    margin: 0 0 8px;
    font-size: 28px;
}
h2 {
    margin: 0 0 12px;
    font-size: 20px;
}
button,
input,
textarea {
    font: inherit;
}
main,
.foot {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
.top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line);
}
.brand {
    font-weight: 700;
    font-size: 20px;
    color: var(--text);
    text-decoration: none;
}
.session {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 14px;
}
.button {
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
}
.button:hover:not(:disabled) {
    border-color: var(--accent);
}
.button:disabled {
    opacity: 0.55;
    cursor: progress;
}
.button.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #07131c;
    font-weight: 600;
}
.intro {
    padding: 20px 0 4px;
    max-width: 72ch;
    color: var(--muted);
}
.intro h1 {
    color: var(--text);
}
.notice {
    margin: 12px 0;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}
.notice.error {
    border-color: var(--bad);
}
.card {
    margin: 16px 0;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel);
}
.field {
    display: block;
    color: var(--muted);
    font-size: 14px;
}
textarea {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
}
.pickers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 14px 0;
}
fieldset {
    margin: 0;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
}
legend {
    padding: 0 6px;
    color: var(--muted);
    font-size: 14px;
}
.models {
    max-height: 190px;
    overflow: auto;
}
.models label,
.check {
    display: flex;
    gap: 8px;
    align-items: baseline;
    padding: 2px 0;
    font-size: 14px;
}
.models .price {
    margin-left: auto;
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}
.check {
    margin: 6px 0;
}
.fine {
    color: var(--muted);
    font-size: 14px;
}
.row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}
.scroll {
    overflow-x: auto;
}
table {
    border-collapse: collapse;
    width: 100%;
    font-size: 14px;
}
th,
td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    white-space: nowrap;
}
th {
    color: var(--muted);
    font-weight: 500;
}
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}
.pic {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel);
}
.pic img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    background: #fff;
}
.pic h3 {
    margin: 10px 0 2px;
    font-size: 15px;
}
.pic .meta {
    color: var(--muted);
    font-size: 13px;
}
.seek {
    margin: 8px 0 0;
    padding: 8px 10px;
    border-left: 3px solid var(--line);
    font-size: 14px;
}
.seek .how {
    color: var(--muted);
}
.v-decoded {
    border-color: var(--ok);
}
.v-close {
    border-color: var(--warn);
}
.v-wrong,
.v-false-alarm,
.v-error {
    border-color: var(--bad);
}
.badge {
    display: inline-block;
    padding: 0 8px;
    border-radius: 999px;
    background: var(--bg);
    font-size: 12px;
}
details {
    margin-top: 8px;
    font-size: 13px;
}
details textarea {
    height: 120px;
    font:
        12px / 1.4 ui-monospace,
        monospace;
}
.foot {
    padding-bottom: 28px;
    color: var(--muted);
    font-size: 14px;
}
@media (max-width: 760px) {
    .pickers {
        grid-template-columns: 1fr;
    }
}

select {
    font: inherit;
    padding: 6px 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--text);
}
.inline {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 14px;
}
.button.small {
    padding: 4px 10px;
    font-size: 13px;
}
.presets {
    margin-bottom: 12px;
    flex-wrap: wrap;
}
h3 {
    margin: 20px 0 8px;
    font-size: 16px;
}
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}
.chip {
    padding: 2px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg);
    color: var(--muted);
    font-size: 13px;
}
.group {
    padding: 10px 12px;
    margin-bottom: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
}
.group.main {
    border-color: var(--accent);
}
.quote {
    margin: 4px 0;
    font-style: italic;
}
.heat {
    text-align: center;
    min-width: 56px;
}

/* Schelling Table */
.code {
    background: #11151a;
    color: #e8eef5;
    padding: 12px 14px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.85rem;
}
.grow {
    flex: 1 1 280px;
    min-width: 0;
}
.short {
    width: 6.5em;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 1.1rem;
    text-align: center;
}
.felt {
    margin-top: 14px;
    padding: 16px;
    border-radius: 12px;
    background: #17402f;
    color: #f1f7f3;
}
.felt h3 {
    margin: 0 0 8px;
}
.felt .prompt {
    font-size: 1.15rem;
    margin: 6px 0;
}
.felt .chip {
    background: #245c45;
    color: #f1f7f3;
    border-color: #35785c;
}
.seats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 10px;
    margin-top: 12px;
}
.seat {
    background: #1f5240;
    border-radius: 10px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.seat.thinking {
    outline: 2px dashed #9ad2b6;
}
.seat .score {
    font-variant-numeric: tabular-nums;
}
.seat .fine {
    color: #bfe0d0;
}
.said {
    font-style: italic;
    font-size: 0.9rem;
}
.history {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}
.round {
    border: 1px solid var(--line, #d8dde3);
    border-radius: 10px;
    padding: 10px 12px;
}
.round h4 {
    margin: 0 0 6px;
}
.round p {
    margin: 2px 0;
}
.log {
    padding-left: 1.2em;
    font-size: 0.9rem;
    max-height: 320px;
    overflow: auto;
}
.log .bad {
    color: #b3261e;
}
.said {
    display: block;
}