:root {
  --bg: #f6f5f2;
  --card: #ffffff;
  --text: #1d1e21;
  --muted: #6c6f76;
  --line: #e4e2dc;
  --accent: #2f6f4f;
  --accent-text: #ffffff;
  --high: #c2410c;
  --chip: #ebe9e3;
  --danger: #b42318;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --card: #202226;
    --text: #ececea;
    --muted: #9a9ca3;
    --line: #2f3238;
    --accent: #5fb88a;
    --accent-text: #0f1a14;
    --high: #fb923c;
    --chip: #2a2d32;
    --danger: #f87171;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  padding: env(safe-area-inset-top) 16px calc(32px + env(safe-area-inset-bottom));
}
main { max-width: 680px; margin: 0 auto; }
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; border-radius: 10px; padding: 10px 16px; background: var(--chip); }
button.primary { background: var(--accent); color: var(--accent-text); font-weight: 600; }
button.ghost { background: transparent; }
button.small { padding: 6px 10px; font-size: 14px; color: var(--muted); }
button.danger { color: var(--danger); }
input, select, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

/* Login */
#gate { min-height: 80vh; display: grid; place-items: center; }
.gate-card { width: 100%; max-width: 340px; text-align: center; }
.gate-icon { width: 64px; height: 64px; }
.gate-card h1 { margin: 8px 0 4px; }
.gate-card p { color: var(--muted); margin: 0 0 16px; }
.gate-card form { display: grid; gap: 10px; }
.err { color: var(--danger) !important; min-height: 1.4em; margin-top: 12px !important; }

/* Kopf */
.top { display: flex; align-items: baseline; gap: 10px; padding: 20px 0 12px; }
.top h1 { margin: 0; font-size: 28px; letter-spacing: -0.02em; }
.count { color: var(--muted); font-size: 15px; }
.top #logout { margin-left: auto; }

.add { display: flex; gap: 8px; position: sticky; top: 0; padding: 8px 0; background: var(--bg); z-index: 2; }
.add input { font-size: 17px; }
.add button { font-size: 22px; line-height: 1; padding: 0 18px; }

.tools { display: grid; gap: 10px; margin: 8px 0 14px; }
.chips { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; }
.chips::-webkit-scrollbar { display: none; }
.chip { white-space: nowrap; padding: 6px 12px; border-radius: 999px; font-size: 14px; }
.chip span { color: var(--muted); margin-left: 2px; }
.chip.on { background: var(--text); color: var(--bg); }
.chip.on span { color: inherit; opacity: .7; }

/* Liste */
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.task {
  display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; background: var(--card);
  border: 1px solid var(--line); border-radius: 12px; cursor: pointer; transition: opacity .2s, transform .2s;
}
.task.p1 { border-left: 3px solid var(--high); }
.task.leaving { opacity: 0; transform: translateX(8px); }
.check {
  flex: none; width: 24px; height: 24px; margin-top: 1px; padding: 0; border-radius: 50%;
  border: 2px solid var(--muted); background: transparent;
}
.check:hover { border-color: var(--accent); }
.done .check { background: var(--accent); border-color: var(--accent); position: relative; }
.done .check::after { content: "✓"; color: var(--accent-text); font-size: 14px; font-weight: 700; position: absolute; inset: 0; display: grid; place-items: center; }
.done .title { color: var(--muted); text-decoration: line-through; }
.body { min-width: 0; flex: 1; }
.title { overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 3px; font-size: 13px; color: var(--muted); }
.tag { background: var(--chip); padding: 0 7px; border-radius: 6px; }
.prio { color: var(--high); font-weight: 600; }
.due.over { color: var(--danger); font-weight: 600; }
.notes { display: none; }
.empty { text-align: center; color: var(--muted); padding: 32px 0; }

.archive-btn { margin-left: auto; padding: 6px 12px; font-size: 14px; border-radius: 999px; }
.top .archive-btn + #logout { margin-left: 0; }
.back { padding: 6px 8px 6px 0; color: var(--accent); font-weight: 600; }
.day { margin: 18px 0 6px; font-size: 14px; font-weight: 600; color: var(--muted); display: flex; justify-content: space-between; }
.hint { color: var(--muted); font-size: 13px; margin: 8px 2px 0; }
.done-box { margin-top: 24px; }
.done-box summary { cursor: pointer; color: var(--muted); padding: 8px 0; }
.done-box .list { margin-top: 6px; }

/* Dialog */
dialog {
  width: min(520px, calc(100vw - 32px)); border: 1px solid var(--line); border-radius: 16px;
  background: var(--card); color: var(--text); padding: 20px;
}
dialog::backdrop { background: rgb(0 0 0 / .4); }
dialog h2 { margin: 0 0 12px; font-size: 20px; }
dialog form { display: grid; gap: 12px; }
dialog label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
dialog label > * { color: var(--text); font-size: 16px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.actions { display: flex; gap: 8px; align-items: center; margin-top: 4px; }
.spacer { flex: 1; }
@media (max-width: 420px) { .row { grid-template-columns: 1fr; } }