:root {
    --bg: #f6f1ea;
    --surface: #fffdf9;
    --ink: #2b2420;
    --muted: #6f645c;
    --line: #e4d9cc;
    --accent: #9a4a2f;
    --accent-ink: #fff;
    --accent-soft: #f3e4da;
    --partner: #4f6b5a;
    --partner-soft: #e3ece5;
    --tree: #d3c2ae;
    --danger: #b3261e;
    --danger-soft: #fbe9e7;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(43, 36, 32, .06), 0 6px 24px rgba(43, 36, 32, .06);
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1b1714;
        --surface: #25201c;
        --ink: #f1e9e1;
        --muted: #b3a79d;
        --line: #3b332d;
        --accent: #e0916f;
        --accent-ink: #1b1714;
        --accent-soft: #3a2a22;
        --partner: #9cc2a8;
        --partner-soft: #26332b;
    --tree: #4d433b;
        --danger: #f2a39c;
        --danger-soft: #3a2220;
        --shadow: none;
        color-scheme: dark;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.5 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.page {
    max-width: 860px;
    margin: 0 auto;
    padding: 24px 16px 64px;
}

h1, h2 {
    font-family: Fraunces, Georgia, serif;
    font-weight: 600;
    line-height: 1.15;
    margin: 0 0 8px;
}

h1 { font-size: clamp(2rem, 6vw, 3rem); }
h2 { font-size: 1.35rem; }

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

.hero {
    position: relative;
    padding: 32px 0 16px;
    text-align: center;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    font-size: .8rem;
}

.when { color: var(--muted); margin: 0; }

.lang {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    gap: 4px;
}

.lang a {
    padding: 2px 8px;
    border-radius: 999px;
    color: var(--muted);
    text-decoration: none;
    font-size: .85rem;
    font-weight: 600;
}

.lang a[aria-current] { background: var(--accent-soft); color: var(--accent); }

.intro {
    text-align: center;
    max-width: 620px;
    margin: 8px auto 24px;
    color: var(--muted);
}

.intro strong { display: block; color: var(--ink); margin-top: 6px; }

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin: 0 0 16px;
}

.notice { background: var(--accent-soft); border-color: transparent; }
.error-banner { background: var(--danger-soft); color: var(--danger); border-color: transparent; font-weight: 500; }

.help { color: var(--muted); margin: 0 0 16px; font-size: .95rem; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field > span { font-size: .85rem; font-weight: 500; color: var(--muted); }

input, select, textarea {
    width: 100%;
    font: inherit;
    color: inherit;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 9px 11px;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
    border-color: transparent;
}

.invalid input, .invalid select { border-color: var(--danger); background: var(--danger-soft); }
.msg { color: var(--danger); font-size: .8rem; }
.hint { color: var(--muted); font-size: .78rem; }

.btn {
    font: inherit;
    font-weight: 600;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--ink);
    border-radius: 999px;
    padding: 9px 18px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.small { padding: 5px 12px; font-size: .85rem; }
.btn.ghost { border-style: dashed; width: 100%; margin-top: 12px; color: var(--muted); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); padding: 12px 28px; font-size: 1.05rem; }
.btn.primary:hover { filter: brightness(1.08); color: var(--accent-ink); }

.link-btn {
    background: none;
    border: 0;
    padding: 2px 4px;
    font: inherit;
    font-size: .85rem;
    color: var(--muted);
    cursor: pointer;
}

.link-btn.danger:hover { color: var(--danger); }

.actions { text-align: center; margin-top: 24px; }

/* Family tree builder */
.tree ul { list-style: none; margin: 0; padding: 0; }
.tree-roots { display: flex; flex-direction: column; gap: 20px; }

/* Children hang below their parents' block, joined by tree lines. */
.tree .tree-children { padding-left: 34px; }
.tree-children > li { position: relative; padding-top: 14px; }
.tree-children > li::before,
.tree-children > li::after {
    content: '';
    position: absolute;
    left: -22px;
    border-color: var(--tree);
    border-style: solid;
    border-width: 0;
}
.tree-children > li::before { top: 0; bottom: 0; border-left-width: 2px; }
.tree-children > li:last-child::before { bottom: auto; height: 38px; }
.tree-children > li::after { top: 36px; width: 20px; border-top-width: 2px; }

.unit {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 4px solid var(--accent);
    border-radius: 12px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow);
}

.unit.is-root { background: var(--accent-soft); border-color: transparent; border-left-color: var(--accent); }

.unit-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-height: 24px; }

.badge {
    display: inline-block;
    font-size: .78rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--accent);
    color: var(--accent-ink);
}

.parents { color: var(--muted); font-size: .85rem; overflow-wrap: anywhere; }

.person-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; align-items: end; }
.person-row.is-partner { border-top: 1px dashed var(--line); padding-top: 10px; }
.is-root .person-row.is-partner { border-top-color: rgba(154, 74, 47, .25); }

.role {
    grid-column: 1 / -1;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--partner);
}
.role::before { content: '& '; }

.person-fields { display: grid; grid-template-columns: 1fr 1fr 6.5rem; gap: 8px; }
.person-tools { display: flex; align-items: center; gap: 6px; height: 42px; }

.toggle { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; font-weight: 500; cursor: pointer; white-space: nowrap; }
.toggle input { width: 18px; height: 18px; margin: 0; accent-color: var(--accent); }

.icon-btn {
    width: 32px;
    height: 32px;
    border: 0;
    border-radius: 8px;
    background: none;
    color: var(--muted);
    font: inherit;
    cursor: pointer;
}
.icon-btn:hover { background: var(--danger-soft); color: var(--danger); }

.person-row.is-absent .person-fields { opacity: .5; }

.unit-actions { display: flex; gap: 8px; flex-wrap: wrap; }

tr.absent td { color: var(--muted); font-style: italic; }
.branch-title { margin: 32px 0 12px; }
.branch-title small { font-family: Inter, system-ui, sans-serif; font-size: .9rem; font-weight: 500; color: var(--muted); }

.copy-row { display: flex; gap: 8px; }
.copy-row input { flex: 1; }

.done { text-align: center; }
.done .copy-row { max-width: 560px; margin: 0 auto 12px; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (max-width: 600px) {
    .tree .tree-children { padding-left: 22px; }
    .tree-children > li::before, .tree-children > li::after { left: -14px; }
    .tree-children > li::after { width: 12px; }
    .unit { padding: 12px; }
    .person-row { grid-template-columns: 1fr; }
    .person-fields { grid-template-columns: 1fr 1fr; }
    .person-fields .year { grid-column: span 2; }
    .person-tools { height: auto; justify-content: space-between; }
    .lang { position: static; justify-content: flex-end; margin-bottom: 8px; }
}

/* Admin */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { text-align: center; padding: 14px; }
.stat b { display: block; font-family: Fraunces, Georgia, serif; font-size: 2rem; line-height: 1.1; }
.stat span { color: var(--muted); font-size: .85rem; }

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

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
td.lineage { color: var(--muted); }
td:first-child { white-space: nowrap; }
.reg-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; }
.reg-head small { color: var(--muted); }
.indent { display: inline-block; }