:root {
  --bg: #f7f7f9;
  --surface: #ffffff;
  --text: #1f2330;
  --muted: #6b7080;
  --border: #e3e4ea;
  --accent: #0f766e;
  --accent-soft: #e6f4f2;
  --danger: #c0352b;
  --danger-soft: #fdecea;
  --warn: #b45309;
  --warn-soft: #fef3e2;
  --ok: #15803d;
  --ok-soft: #e8f6ec;
  --info: #4f46e5;
  --info-soft: #eef0ff;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151a;
    --surface: #1d1f26;
    --text: #e8e9ee;
    --muted: #9a9eab;
    --border: #2e313b;
    --accent: #2dd4bf;
    --accent-soft: #18332f;
    --danger: #ff6b5e;
    --danger-soft: #3a1f1c;
    --warn: #fbbf24;
    --warn-soft: #3a2e14;
    --ok: #4ade80;
    --ok-soft: #173222;
    --info: #8b85ff;
    --info-soft: #272742;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}
a { color: var(--accent); text-decoration: none; }
h1 { font-size: 1.5rem; margin: 0 0 4px; overflow-wrap: anywhere; }
h2 { font-size: 1.1rem; margin: 24px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.center { text-align: center; }
.pre { white-space: pre-wrap; word-break: break-word; }
[hidden] { display: none !important; }

/* Kopf und Navigation */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: var(--text); }
.mainnav a { color: var(--muted); padding: 6px 10px; border-radius: 8px; }
.mainnav a.active { color: var(--accent); background: var(--accent-soft); }
@media (max-width: 700px) {
  .mainnav {
    position: fixed; bottom: 0; left: 0; right: 0;
    display: flex; justify-content: space-around;
    padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
    background: var(--surface); border-top: 1px solid var(--border);
  }
  .mainnav a { flex: 1; text-align: center; font-size: .875rem; }
}

main { padding: 16px; }
#login-form { max-width: 420px; margin: 24px auto; }

/* Bausteine */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.stack > * + * { margin-top: 12px; }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-size: .95rem; cursor: pointer;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); text-decoration: none;
}
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) { button.primary, .btn.primary { color: #0b1f1d; } }
button.danger { color: var(--danger); }
button.link { border: none; background: none; padding: 4px 6px; color: var(--muted); }
button.link:hover { color: var(--text); }
button:disabled { opacity: .5; cursor: default; }

label { display: block; font-size: .875rem; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { min-height: 80px; resize: vertical; }
input[type=checkbox] { width: auto; }
.check { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 1rem; }
.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.fields .full { grid-column: 1 / -1; }
.error { color: var(--danger); font-size: .9rem; }
.error:empty { display: none; }

/* Badges */
.badge { display: inline-block; font-size: .75rem; line-height: 1.6; padding: 0 8px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); white-space: nowrap; }
.badge.st-offen { background: var(--info-soft); color: var(--info); }
.badge.st-in_arbeit { background: var(--warn-soft); color: var(--warn); }
.badge.st-wartet { background: var(--border); color: var(--muted); }
.badge.st-erledigt { background: var(--ok-soft); color: var(--ok); }
.badge.pr-dringend { background: var(--danger); color: #fff; }
.badge.pr-hoch { background: var(--danger-soft); color: var(--danger); }
.badge.pr-niedrig { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.badge.overdue { background: var(--danger-soft); color: var(--danger); font-weight: 600; }
.badge.soon { background: var(--warn-soft); color: var(--warn); }
.badge.plain { background: transparent; color: var(--muted); padding: 0; }

.avatar {
  flex: none; width: 30px; height: 30px; border-radius: 50%; font-size: .75rem; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent);
}
.avatar.none { background: transparent; border: 1px dashed var(--border); color: var(--muted); }

/* Übersicht */
.stats { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.stat { display: inline-flex; align-items: baseline; gap: 5px; padding: 2px 10px; border-radius: 99px; background: var(--surface); border: 1px solid var(--border); color: var(--text); font-size: .85rem; }
.stat strong { font-size: .95rem; }
.stat span { color: var(--muted); }
.stat:hover { border-color: var(--accent); }
.stat.alert strong { color: var(--danger); }
.filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.filters input, .filters select { width: auto; min-width: 0; padding: 3px 8px; font-size: .85rem; border-radius: 6px; height: 30px; }
.filters select { flex: 0 1 auto; }
.filters .search { flex: 1 1 200px; max-width: 360px; }

.task-list { list-style: none; margin: 0; padding: 0; }
.task-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--border);
  border-radius: var(--radius); margin-bottom: 8px;
}
.task-row.pr-dringend { border-left-color: var(--danger); }
.task-row.pr-hoch { border-left-color: var(--warn); }
.task-row.pr-normal { border-left-color: var(--accent); }
.task-row.done { opacity: .6; }
.task-row.done .title { text-decoration: line-through; }
.task-row .title { font-weight: 600; overflow-wrap: anywhere; }
.task-row .meta { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; font-size: .8rem; color: var(--muted); margin-top: 2px; }
.parent-ref { font-size: .8rem; color: var(--muted); }

/* Detail */
.crumbs { font-size: .875rem; margin-bottom: 8px; }
.quick { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
progress.progress { display: block; width: 100%; height: 8px; margin: 6px 0 4px; accent-color: var(--ok); }
.subtasks { list-style: none; padding: 0; margin: 0; }
.subtasks li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.subtasks li:last-child { border-bottom: none; }
.subtasks li.done .sub-title { color: var(--muted); text-decoration: line-through; }
.subtasks .sub-title { color: var(--text); overflow-wrap: anywhere; }
.subtasks input[type=checkbox] { width: 18px; height: 18px; flex: none; }
.sub-add { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; margin-top: 12px; }
.sub-add select { width: auto; max-width: 160px; }
@media (max-width: 500px) {
  .sub-add { grid-template-columns: 1fr auto; }
  .sub-add input { grid-column: 1 / -1; }
  .sub-add select { max-width: none; width: 100%; }
}

.timeline { list-style: none; padding: 0; margin: 0; }
.timeline > li { margin-bottom: 10px; }
.timeline .comment { border-left: 3px solid var(--accent); }
.timeline .comment .meta { font-size: .85rem; color: var(--muted); }
.timeline .change { display: flex; gap: 8px; font-size: .85rem; color: var(--muted); padding: 0 4px 0 16px; }
.timeline .change .pre { flex: 1; }
.series { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; font-size: .875rem; }

.toast {
  position: fixed; left: 50%; bottom: calc(80px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; z-index: 50; max-width: 90vw;
}
.token-box { font-family: ui-monospace, monospace; word-break: break-all; background: var(--accent-soft); padding: 8px; border-radius: 6px; }
.qr { width: 200px; height: 200px; background: #fff; border-radius: 8px; }
.user-row { padding: 8px 0; border-bottom: 1px solid var(--border); }
.user-row:last-child { border-bottom: none; }

/* Häuser & Kategorien */
.badge.house { background: var(--info-soft); color: var(--info); font-weight: 600; }
.tag { white-space: nowrap; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.chips:empty { display: none; }
.chip { display: inline-flex; align-items: center; gap: 2px; padding: 2px 4px 2px 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); font-size: .875rem; }
.chip button { border: none; background: none; padding: 0 6px; color: inherit; font-size: 1rem; line-height: 1; }

/* Ansichten */
.views { display: flex; gap: 2px; margin: 4px 0 8px; overflow-x: auto; border-bottom: 1px solid var(--border); }
.views button { border: none; border-bottom: 2px solid transparent; border-radius: 0; background: none; color: var(--muted); padding: 5px 10px; font-size: .9rem; white-space: nowrap; }
.views button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.task-row.selected { border-color: var(--accent); background: var(--accent-soft); }
.task-list.compact .task-row { padding: 8px 10px; gap: 8px; }

/* Tabelle */
.table-wrap { padding: 0; overflow-x: auto; }
.task-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.task-table th, .task-table td { padding: 8px 10px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
.task-table th { font-weight: 600; color: var(--muted); white-space: nowrap; background: var(--surface); position: sticky; top: 0; }
.task-table th button.sort { border: none; background: none; padding: 0; font: inherit; color: inherit; }
.task-table th button.sort.active { color: var(--accent); }
.task-table tbody tr { cursor: pointer; }
.task-table tbody tr:hover { background: var(--accent-soft); }
.task-table tbody tr:last-child td { border-bottom: none; }
.task-table tr.done td { opacity: .6; }
.task-table tr.done .title-cell a { text-decoration: line-through; }
.task-table .title-cell { min-width: 220px; }
.task-table .title-cell a { color: var(--text); font-weight: 600; }
.task-table td:nth-child(2), .task-table td:nth-child(6), .task-table td:nth-child(7) { white-space: nowrap; }

/* Kanban */
.board { display: grid; grid-template-columns: repeat(4, minmax(240px, 1fr)); gap: 12px; overflow-x: auto; padding-bottom: 8px; align-items: start; }
.column { background: var(--border); background: color-mix(in srgb, var(--border) 45%, transparent); border-radius: var(--radius); padding: 8px; min-height: 120px; }
.column.drop { outline: 2px dashed var(--accent); outline-offset: -2px; }
.column header { display: flex; justify-content: space-between; align-items: center; padding: 2px 4px 8px; }
.cards { display: flex; flex-direction: column; gap: 8px; }
.cards .empty { text-align: center; margin: 8px 0; }
.kcard {
  display: flex; flex-direction: column; gap: 4px; padding: 10px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--border); border-radius: 8px; cursor: grab;
}
.kcard.pr-dringend { border-left-color: var(--danger); }
.kcard.pr-hoch { border-left-color: var(--warn); }
.kcard.pr-normal { border-left-color: var(--accent); }
.kcard.dragging { opacity: .4; }
.kcard .title { font-weight: 600; overflow-wrap: anywhere; }
.kcard .meta { display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center; font-size: .8rem; color: var(--muted); }
.kcard .meta:empty { display: none; }
.kfoot { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--muted); flex-wrap: wrap; }
.board-hint { margin: 0 0 8px; }

/* Liste + Inhalt */
.split { display: grid; grid-template-columns: minmax(300px, 380px) 1fr; gap: 16px; align-items: start; }
.split-list { position: sticky; top: 64px; max-height: calc(100vh - 80px); overflow-y: auto; padding-right: 4px; }
.split-detail { min-width: 0; }
.split-detail h1 { font-size: 1.35rem; }
@media (max-width: 899px) {
  .split { display: block; }
  .split-list { position: static; max-height: none; overflow: visible; }
}

/* Verlauf einklappbar */
.history { margin-top: 24px; }
.history summary { cursor: pointer; font-weight: 700; font-size: 1.1rem; margin-bottom: 8px; }
@media (max-width: 700px) {
  .board { grid-template-columns: repeat(4, 82vw); scroll-snap-type: x mandatory; }
  .column { scroll-snap-align: start; }
}
@media (max-width: 700px) {
  .filters select, .filters .search { flex: 1 1 140px; max-width: none; }
}