:root {
  --bg: #f7f7f5; --fg: #1d1d1b; --muted: #6b6b66; --card: #fff; --line: #e2e1dc;
  --accent: #2f5bd3; --warn: #b45309; --warn-bg: #fef3c7; --danger: #b42318; --add: #e6f4ea; --del: #fde8e8;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161615; --fg: #ebebe6; --muted: #a3a39c; --card: #22221f; --line: #383834;
    --accent: #8aa9ff; --warn: #fbbf24; --warn-bg: #3b2f12; --danger: #f97066; --add: #12301c; --del: #3a1717; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.45; }
a { color: var(--accent); }
main { padding: 1rem; max-width: 100%; }
h1 { font-size: 1.4rem; margin: .3rem 0 .8rem; } h2 { font-size: 1.05rem; margin: 1.2rem 0 .5rem; }
.top { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; justify-content: space-between;
  padding: .6rem 1rem; border-bottom: 1px solid var(--line); background: var(--card); }
.top nav { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.count { background: var(--danger); color: #fff; border-radius: 1rem; padding: 0 .45rem; font-size: .8rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .5rem; padding: .8rem; margin: .6rem 0; }
.narrow { max-width: 22rem; margin: 3rem auto; display: grid; gap: .7rem; }
.grid { display: grid; gap: .6rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); align-items: end; }
label { display: grid; gap: .2rem; font-size: .9rem; }
input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea { background: var(--card); border: 1px solid var(--line); border-radius: .35rem; padding: .35rem .5rem; width: 100%; }
textarea { font-family: ui-monospace, monospace; font-size: .9rem; }
button { background: var(--accent); color: #fff; border: 0; border-radius: .35rem; padding: .4rem .8rem; cursor: pointer; }
button.link { background: none; color: var(--accent); padding: 0; }
button.danger, .danger { color: var(--danger); } button.danger:not(.link) { background: var(--danger); color: #fff; }
.inline { display: inline; } .inline-form { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: .5rem 0; }
.inline-form input, .inline-form select { width: auto; } .inline-form label { display: inline-flex; gap: .3rem; align-items: center; }
.muted { color: var(--muted); } .small { font-size: .8rem; font-weight: normal; }
.error { background: var(--del); border: 1px solid var(--danger); padding: .5rem .7rem; border-radius: .35rem; }
.note { background: var(--warn-bg); padding: .5rem .7rem; border-radius: .35rem; }
.badge { font-size: .7rem; border: 1px solid var(--line); border-radius: .3rem; padding: 0 .3rem; color: var(--muted); }
.badge.admin, .badge.gate { color: var(--warn); border-color: var(--warn); }
.label, .chip { font-size: .75rem; background: var(--line); border-radius: .3rem; padding: .05rem .35rem; }
.chip.warn, .label.warn { background: var(--warn-bg); color: var(--warn); font-weight: 600; }
.list { width: 100%; border-collapse: collapse; padding-left: 1.2rem; }
.list td, .list th { text-align: left; padding: .4rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.board-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: .5rem; }
.tabs { display: flex; gap: .8rem; } .tabs a[aria-current] { font-weight: 700; text-decoration: none; color: var(--fg); }
.filters { display: flex; flex-wrap: wrap; gap: .4rem; margin: .5rem 0; } .filters > * { width: auto; flex: 1 1 8rem; }
.board { display: flex; gap: .8rem; overflow-x: auto; padding-bottom: 1rem; align-items: flex-start; }
.column { flex: 1 1 0; min-width: 10rem; background: var(--line); border-radius: .5rem; padding: .5rem; }
.column h2 { margin: .2rem 0 .5rem; display: flex; flex-wrap: wrap; font-size: 1.15rem; gap: .4rem; align-items: center; }
.cards { list-style: none; margin: 0; padding: 0; min-height: 2rem; display: grid; gap: .45rem; }
.task-card { background: var(--card); border-radius: .4rem; padding: .5rem; cursor: grab; border: 1px solid transparent; }
.task-card:focus { outline: 2px solid var(--accent); }
.task-card .ref { font-size: .8rem; font-weight: 600; margin-right: .3rem; }
.task-card .meta { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .3rem; font-size: .8rem; }
.sortable-ghost { opacity: .4; }
.new-task summary { font-size: .85rem; color: var(--muted); cursor: pointer; margin-top: .4rem; }
.panel:empty { display: none; }
.panel { position: fixed; top: 0; right: 0; bottom: 0; width: min(46rem, 100%); overflow-y: auto;
  background: var(--bg); border-left: 1px solid var(--line); padding: 1rem; box-shadow: -4px 0 16px #0002; }
.status { display: grid; grid-template-columns: max-content 1fr; gap: .2rem .8rem; margin: 0 0 1rem; }
.status dt { color: var(--muted); }
.md img { max-width: 100%; height: auto; }
.md pre, pre.diff, pre.content { overflow-x: auto; background: var(--card); border: 1px solid var(--line); padding: .6rem; border-radius: .35rem; }
.diff .add { background: var(--add); display: block; } .diff .del { background: var(--del); display: block; }
.comment { border-top: 1px solid var(--line); padding: .5rem 0; } .comment.question { border-left: 3px solid var(--warn); padding-left: .6rem; }
.comment header { font-size: .85rem; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.activity { padding-left: 1.2rem; font-size: .85rem; }
.attachments { list-style: none; padding: 0; display: grid; gap: .5rem; }
.attachments img { max-height: 6rem; max-width: 10rem; display: block; border-radius: .3rem; }
.editor-tabs { display: flex; gap: .3rem; margin-bottom: .3rem; align-items: center; }
.editor-tabs .tab { background: var(--line); color: var(--fg); padding: .2rem .6rem; }
.editor-tabs .tab[aria-pressed="true"] { background: var(--accent); color: #fff; }
.attach { display: inline-block; cursor: pointer; color: var(--accent); font-size: .85rem; }
.preview { min-height: 6rem; background: var(--card); border: 1px dashed var(--line); padding: .6rem; border-radius: .35rem; }
.token { word-break: break-all; }
.crumbs { margin: 0; font-size: .85rem; }
@media (max-width: 600px) { .column { flex: 0 0 85vw; } main { padding: .6rem; } }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.attach:focus-within { outline: 2px solid var(--accent); }