:root {
    --paper: #f3efe4;
    --paper-2: #e7e1d2;
    --ink: #1c2430;
    --muted: #5e675f;
    --line: #d9d0bc;
    --surface: rgba(255, 252, 246, 0.92);
    --sea: #0f6f6a;
    --sea-ink: #f4fffc;
    --rust: #a34b2b;
    --shadow: 0 18px 50px rgba(48, 38, 18, 0.08);
    --serif: "Fraunces", "Iowan Old Style", Palatino, Georgia, serif;
    --sans: "Outfit", "Avenir Next", "Segoe UI", sans-serif;
    --mono: "IBM Plex Mono", "ui-monospace", "SFMono-Regular", monospace;
    color-scheme: light;
}

html[data-theme="dark"] {
    --paper: #10161c;
    --paper-2: #1a232c;
    --ink: #e7eef4;
    --muted: #a7b3bf;
    --line: #2c3946;
    --surface: rgba(18, 26, 34, 0.92);
    --sea: #7ddecb;
    --sea-ink: #08211d;
    --rust: #f0a07a;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
    color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    min-height: 100vh;
    font-family: var(--sans);
    color: var(--ink);
    background:
        radial-gradient(900px 420px at 10% -10%, rgba(15, 111, 106, 0.16), transparent 60%),
        radial-gradient(700px 380px at 110% 0%, rgba(163, 75, 43, 0.12), transparent 55%),
        var(--paper);
    line-height: 1.5;
}
body.mode-admin { background: var(--paper); }
a { color: inherit; }
img { max-width: 100%; height: auto; }
code, pre { font-family: var(--mono); }
.skip {
    position: absolute;
    left: 1rem;
    top: -4rem;
    background: var(--ink);
    color: var(--paper);
    padding: 0.5rem 0.8rem;
}
.skip:focus { top: 1rem; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 5;
    backdrop-filter: blur(16px);
    background: color-mix(in srgb, var(--paper) 78%, transparent);
    border-bottom: 1px solid var(--line);
}
.header-inner, .footer-inner, .wrap { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.header-inner { display: flex; align-items: center; gap: 1.2rem; min-height: 4.4rem; }
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.mark { width: 2rem; height: 2rem; color: var(--sea); display: grid; }
.mark svg { width: 100%; height: 100%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong { font-family: var(--serif); font-size: 1.2rem; font-weight: 640; }
.brand-text em { font-style: normal; color: var(--muted); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; }
.primary-nav { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-left: 0.6rem; }
.primary-nav a { text-decoration: none; padding: 0.35rem 0.7rem; border-radius: 999px; color: var(--muted); }
.primary-nav a[aria-current="page"], .primary-nav a:hover { background: var(--paper-2); color: var(--ink); }
.header-actions { margin-left: auto; display: flex; gap: 0.45rem; align-items: center; }

.btn, button.btn {
    appearance: none;
    border: 0;
    background: var(--sea);
    color: var(--sea-ink);
    font: 600 0.95rem var(--sans);
    padding: 0.7rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}
.btn-small { padding: 0.4rem 0.75rem; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-danger { background: var(--rust); color: #fff; }
.theme-toggle {
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink);
    border-radius: 999px;
    padding: 0.35rem 0.7rem;
    display: inline-flex;
    gap: 0.4rem;
    align-items: center;
    cursor: pointer;
    font: 500 0.85rem var(--sans);
}
.theme-icon { width: 0.8rem; height: 0.8rem; border-radius: 50%; background: var(--ink); box-shadow: inset -4px -2px 0 var(--sea); }

.wrap { padding: 2.5rem 0 4rem; }
.narrow { width: min(640px, calc(100% - 2rem)); }
.home { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 4rem; }
.hero { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 1.5rem; align-items: end; margin-bottom: 1.4rem; }
.hero h1, .panel h1, .page-head h1, .sheet h1 { font-family: var(--serif); font-weight: 640; letter-spacing: -0.03em; line-height: 1.05; margin: 0.2rem 0 0.6rem; font-size: clamp(2.4rem, 5vw, 4.6rem); }
.lede { font-size: 1.15rem; max-width: 38rem; color: var(--muted); }
.eyebrow { letter-spacing: 0.14em; text-transform: uppercase; font-size: 0.75rem; color: var(--sea); margin: 0; }
.hero-card, .panel, .sheet, .stat {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1.3rem;
    box-shadow: var(--shadow);
}
.hero-card { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem 1rem; padding: 1.2rem; }
.hero-card span { color: var(--muted); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.hero-card strong { font-family: var(--serif); font-size: 1.4rem; }
.sheet { padding: 1.6rem 1.5rem 2rem; }
.panel { padding: 1.4rem; }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0 1.4rem; color: var(--muted); font-size: 0.9rem; }

.markdown > *:first-child { margin-top: 0; }
.markdown h1, .markdown h2, .markdown h3 { font-family: var(--serif); line-height: 1.15; letter-spacing: -0.02em; }
.markdown h2 { font-size: 1.7rem; margin-top: 1.6rem; }
.markdown a { color: var(--sea); }
.markdown blockquote { margin: 1rem 0; padding: 0.2rem 0 0.2rem 1rem; border-left: 3px solid var(--sea); color: var(--muted); }
.markdown pre, .markdown code { background: var(--paper-2); border-radius: 0.5rem; }
.markdown code { padding: 0.1rem 0.35rem; }
.markdown pre { padding: 0.9rem 1rem; overflow: auto; }
.markdown pre code { padding: 0; background: transparent; }
.markdown table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.markdown th, .markdown td { border-bottom: 1px solid var(--line); text-align: left; padding: 0.45rem 0.4rem; }
.markdown img { border-radius: 0.8rem; }
.markdown li.task { list-style: none; margin-left: -1.2rem; }
.banner, .flash { padding: 0.7rem 0.9rem; border-radius: 0.8rem; margin: 0.8rem 0; }
.banner, .flash-ok { background: color-mix(in srgb, var(--sea) 18%, var(--surface)); }
.flash-error { background: color-mix(in srgb, var(--rust) 18%, var(--surface)); }

label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.92rem; margin: 0.8rem 0; }
input, textarea, select {
    font: 1rem var(--sans);
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 0.8rem;
    padding: 0.7rem 0.8rem;
}
textarea { resize: vertical; min-height: 16rem; line-height: 1.45; }
.check { flex-direction: row; align-items: center; gap: 0.6rem; }
.hint, .muted { color: var(--muted); font-size: 0.88rem; }
.form-grid { max-width: 40rem; }
.split-fields { display: grid; grid-template-columns: 140px 1fr 1fr; gap: 0.6rem; align-items: end; }

.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.admin-side {
    border-right: 1px solid var(--line);
    padding: 1.2rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    background: color-mix(in srgb, var(--paper-2) 65%, transparent);
}
.side-nav, .side-foot { display: flex; flex-direction: column; gap: 0.25rem; }
.side-nav a, .side-foot a { text-decoration: none; padding: 0.45rem 0.6rem; border-radius: 0.7rem; }
.side-nav a[aria-current="page"], .side-nav a:hover { background: var(--surface); }
.side-foot { margin-top: auto; }
.admin-content { padding: 1.6rem 1.4rem 3rem; }
.page-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.page-head h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; margin-bottom: 1rem; }
.stat { padding: 1rem 1.1rem; }
.stat span { color: var(--muted); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.stat strong { display: block; font-family: var(--serif); font-size: 2rem; }
.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0; border-bottom: 1px solid var(--line); }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.75rem 0.9rem; border-bottom: 1px solid var(--line); }
th { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.row-actions { text-align: right; }
.lock { font-size: 0.75rem; border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.45rem; }
.editor-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1rem; align-items: start; }
.preview-pane { position: sticky; top: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); min-height: 12rem; }
.upload-row, .form-actions { display: flex; gap: 0.6rem; align-items: end; flex-wrap: wrap; }
.danger-form { margin-top: 1rem; }

.ledger-wrap { margin: 1rem 0; }
.ledger th { background: #f3d7b5; color: #3a2a1c; }
html[data-theme="dark"] .ledger th { background: #4a3424; color: #f6e7d4; }
.ledger td { vertical-align: middle; }
.opening-row td { color: var(--muted); }
.coins { display: inline-flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }
.coins img, .coin { width: 18px; height: 18px; object-fit: contain; vertical-align: middle; }
.coin-fields { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.coin-fields label { min-width: 7rem; }
.coin-fields input { max-width: 8rem; }
.ledger-grid { display: grid; grid-template-columns: 180px 120px 1fr; gap: 0.7rem; }
.span-2 { grid-column: span 1; }
.money-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.money-pair fieldset { border: 1px solid var(--line); border-radius: 0.9rem; margin: 0.4rem 0 0; padding: 0.6rem 0.8rem 0.8rem; }
.money-pair legend { padding: 0 0.3rem; }
.opening-form h2, .ledger-form h2 { font-family: var(--serif); margin: 0.2rem 0; }
.inline-delete { display: inline; margin-left: 0.45rem; }
.inline-delete button { border: 0; background: transparent; color: var(--rust); cursor: pointer; font: inherit; padding: 0; }
.assoc-fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.7rem; }
.assoc-fields input { width: 100%; min-width: 0; }
.fact-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; margin: 0 0 1rem; }
.fact-list div { background: var(--surface); border: 1px solid var(--line); border-radius: 0.9rem; padding: 0.75rem 0.9rem; }
.fact-list dt { color: var(--muted); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }
.fact-list dd { margin: 0.2rem 0 0; font-family: var(--serif); font-size: 1.2rem; }

@media (max-width: 900px) {
    .hero, .admin-shell, .editor-layout, .stat-row, .split-fields, .ledger-grid, .money-pair, .assoc-fields, .fact-list { grid-template-columns: 1fr; }
    .header-inner { flex-wrap: wrap; padding: 0.7rem 0; }
    .primary-nav, .header-actions { margin-left: 0; }
    .admin-side { border-right: 0; border-bottom: 1px solid var(--line); }
    .preview-pane { position: static; }
}