:root {
    --paper: #e4dccb;
    --sheet: #f7f3ea;
    --panel: #fffdf8;
    --ink: #1c1914;
    --faint: #746c60;
    --line: #d5ccbc;
    --in: #0d6844;
    --out: #9a3412;
    --copper: #c4622d;
    --rail: #1c1914;
    --rail-ink: #f4efe6;
    --bad: #8f1d1d;
    --good: #0d6844;
    --sans: "Avenir Next", "Segoe UI", "Liberation Sans", sans-serif;
    --serif: "Iowan Old Style", Palatino, "Palatino Linotype", "Liberation Serif", serif;
    --mono: "Ubuntu Mono", "DejaVu Sans Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body { margin: 0; height: 100%; }

body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.4;
}

body.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

button, input, a { font: inherit; color: inherit; }

:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
}

.shell {
    display: grid;
    grid-template-columns: 168px 1fr;
    flex: 1;
    min-height: 0;
}

.rail {
    background: var(--rail);
    color: var(--rail-ink);
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 12px;
    min-height: 0;
}

.rail a, .rail button {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    background: transparent;
    border: 1px solid transparent;
    color: var(--rail-ink);
    padding: 8px 10px;
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    width: 100%;
}

.rail a.on {
    background: var(--copper);
    color: var(--rail);
    border-color: var(--copper);
}

.rail kbd, .keys kbd, .button kbd, .choice kbd, .text-button kbd {
    font-family: var(--mono);
    font-size: 12px;
    border: 1px solid currentColor;
    padding: 0 4px;
    line-height: 1.3;
}

.rail a kbd { width: 1ch; font-size: 16px; border: 0; padding: 0; font-weight: 700; }

.rail a span, .rail button { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; }

.mark {
    font-family: var(--serif);
    font-size: 28px;
    line-height: 1;
    padding: 0 8px 10px !important;
}

.rail-out { margin-top: auto; }

.stage {
    background: var(--sheet);
    min-height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 22px 28px 16px;
}

main {
    flex: 1;
    min-height: 0;
    overflow: auto;
    display: flex;
    flex-direction: column;
}

.top {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-end;
    border-bottom: 1px solid var(--ink);
    padding-bottom: 16px;
    margin-bottom: 22px;
}

.eyebrow, .hint, .range {
    margin: 0;
    color: var(--faint);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1, h2 { font-family: var(--serif); font-weight: 500; margin: 0; }

h1 { font-size: 40px; line-height: 1; letter-spacing: -0.03em; }

h2 { font-size: 22px; }

.cash { text-align: right; }

.cash span {
    display: block;
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--faint);
}

.cash strong, .stats strong {
    font-family: var(--mono);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.cash strong { font-size: 32px; }

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 28px;
}

.stats article, .voucher, .gate-card, .split > section, .panel {
    background: var(--panel);
    border: 1px solid var(--line);
}

.panel {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 4px 14px 12px;
    display: flex;
    flex-direction: column;
}

.panel .book, .split .book {
    background: transparent;
    border: 0;
}

.stats article { padding: 14px 16px; }

.stats span {
    display: block;
    color: var(--faint);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.stats strong { font-size: 22px; }

.split {
    flex: 1;
    min-height: 240px;
    display: grid;
    grid-template-columns: minmax(280px, 0.85fr) minmax(360px, 1.15fr);
    gap: 16px;
}

.split > section {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 4px 14px 12px;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin: 8px 0 12px;
}

.toolbar form { flex: 1; }

.toolbar input, .filters input {
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--ink);
    padding: 8px 0;
    font-family: var(--mono);
    text-transform: uppercase;
}

.button, .voucher button[type="submit"], .filters button, #arm button {
    background: var(--ink);
    color: var(--sheet);
    text-decoration: none;
    border: 1px solid var(--ink);
    padding: 8px 12px;
    cursor: pointer;
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.button kbd, .voucher button kbd { border-color: var(--sheet); }

.book {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
}

.book th {
    text-align: left;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
    font-weight: 600;
    padding: 8px 10px;
    border-bottom: 3px double var(--ink);
}

.book td {
    padding: 9px 10px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.book tr[data-href] { cursor: pointer; }

.book tr.is-current td { background: #efe2c4; }

.book tr.carry td { background: #efeae0; font-weight: 600; }

.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }

.id { font-family: var(--mono); font-weight: 700; }

.muted, .empty { color: var(--faint); }

.empty { padding: 22px 10px; }

.in { color: var(--in); }

.out, .neg { color: var(--out); }

.row-actions button {
    background: transparent;
    border: 0;
    color: var(--faint);
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

.pager { display: flex; gap: 16px; margin-top: 14px; }

.pager a { color: var(--ink); }

.alert { padding: 10px 12px; margin: 0 0 16px; border: 1px solid; }

.alert.good { background: #e5f4ec; border-color: var(--good); color: var(--good); }

.alert.bad, .field-error { background: #f8e8e4; border-color: var(--bad); color: var(--bad); }

.field-error { margin: 0; padding: 6px 10px; border-width: 0 0 1px; }

.voucher { padding: 8px 22px 18px; max-width: 760px; }

.voucher label, .choice-row, .remark-block {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 12px;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--line);
}

.voucher label span, .choice-row > span, .remark-block > span {
    color: var(--faint);
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.voucher input {
    width: 100%;
    border: 0;
    background: transparent;
    padding: 8px 0;
    font-family: var(--mono);
    font-size: 18px;
}

.voucher input[data-caps] { text-transform: uppercase; }

.voucher input[readonly] { color: var(--faint); }

.choice { display: flex; gap: 8px; }

.choice button {
    background: transparent;
    border: 1px solid var(--line);
    padding: 8px 12px;
    cursor: pointer;
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.choice button.on { background: var(--ink); color: var(--sheet); border-color: var(--ink); }

.remarks { display: grid; gap: 6px; }

.text-button {
    margin-top: 8px;
    background: transparent;
    border: 0;
    padding: 0;
    cursor: pointer;
    color: var(--faint);
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

.actions { display: flex; gap: 16px; align-items: center; padding-top: 16px; }

.actions a { color: var(--faint); }

.filters {
    display: grid;
    grid-template-columns: 1.3fr 0.8fr 0.8fr 0.8fr auto;
    gap: 14px;
    align-items: end;
    margin-bottom: 12px;
}

.filters label { display: grid; gap: 4px; }

.filters label span {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
}

.filters input[type="month"], .filters input[type="date"], .voucher input[type="date"] {
    text-transform: none;
    font-family: var(--mono);
}

.range { margin: 0 0 12px; }

.keys {
    flex-shrink: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    align-items: center;
    min-height: 46px;
    padding: 8px 16px;
    background: var(--rail);
    color: var(--rail-ink);
    font-size: 12px;
}

#arm {
    position: sticky;
    bottom: 46px;
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 10px 16px;
    background: var(--out);
    color: #fff8f4;
}

#arm[hidden] { display: none; }

#arm p { margin: 0; flex: 1; letter-spacing: 0.06em; }

#arm button { background: transparent; color: white; border-color: white; }

.gate {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.gate-card { width: min(520px, 100%); padding: 28px; }

.gate-card h1 { margin: 4px 0 8px; }

.lede { margin: 0 0 18px; }

.sr {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

@media (max-width: 900px) {
    .shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
    .rail {
        flex-direction: row;
        align-items: stretch;
        gap: 0;
        padding: 6px;
        overflow-x: auto;
    }
    .rail a, .rail button { flex: 1; justify-content: center; padding: 8px 4px; gap: 0; }
    .rail a span { display: none; }
    .rail a kbd { width: auto; font-size: 16px; }
    .rail button { font-size: 12px; letter-spacing: 0; }
    .rail-out { margin-top: 0; }
    .mark { padding: 0 8px !important; }
    .stats, .split, .filters, .voucher label, .choice-row, .remark-block {
        grid-template-columns: 1fr;
    }
    .split { min-height: 0; }
    .stage { padding: 16px; }
    .top { flex-direction: column; align-items: flex-start; }
    .cash { text-align: left; }
    h1 { font-size: 32px; }
}