:root {
  --fg: #111;
  --muted: #6b6b6b;
  --faint: #9a9a9a;
  --line: #e6e6e6;
  --line-strong: #cfcfcf;
  --bg: #fff;
  --hover: #f6f6f6;
  --danger: #b3261e;
  --warn-bg: #fbf6e9;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 13.5px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: inherit; }
h1 { font-size: 15px; font-weight: 600; margin: 0 0 12px; }
h2 { font-size: 13.5px; font-weight: 600; margin: 0 0 10px; }

/* ---- Kopfzeile */
.top {
  display: flex; align-items: center; gap: 24px;
  height: 44px; padding: 0 24px;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 600; letter-spacing: -0.01em; text-decoration: none; white-space: nowrap; }
.brand .version { font-weight: 400; font-size: 11.5px; color: var(--faint); margin-left: 2px; }
.nav { display: flex; gap: 18px; flex: 1; height: 100%; }
.nav a {
  display: flex; align-items: center; height: 100%;
  color: var(--muted); text-decoration: none; border-bottom: 1.5px solid transparent;
}
.nav a:hover { color: var(--fg); }
.nav a.on { color: var(--fg); border-bottom-color: var(--fg); }
.top form { margin: 0; }

main { max-width: 1040px; margin: 0 auto; padding: 20px 24px 60px; }

/* ---- Formularelemente */
input[type=text], input[type=email], input[type=password], input[type=date], input[type=time],
input[type=search], select, textarea {
  font: inherit; color: var(--fg); background: #fff;
  height: 28px; padding: 0 8px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  width: 100%; min-width: 0;
}
textarea { height: auto; min-height: 28px; padding: 5px 8px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--fg); }
label { display: block; color: var(--muted); font-size: 12px; margin-bottom: 3px; }

.btn {
  font: inherit; display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 12px; cursor: pointer; white-space: nowrap;
  border: 1px solid var(--fg); border-radius: var(--radius);
  background: var(--fg); color: #fff; text-decoration: none;
}
.btn:hover { background: #333; border-color: #333; }
.btn.ghost { background: #fff; color: var(--fg); border-color: var(--line-strong); }
.btn.ghost:hover { border-color: var(--fg); background: #fff; }
.btn.link { background: none; border: 0; color: var(--muted); padding: 0 4px; height: auto; }
.btn.link:hover { color: var(--fg); background: none; }
.btn.danger { background: #fff; color: var(--danger); border-color: var(--line-strong); }
.btn.danger:hover { border-color: var(--danger); }

/* ---- Meldungen */
.flash { padding: 7px 10px; margin-bottom: 14px; border: 1px solid var(--line-strong); border-radius: var(--radius); }
.flash.error, .errors { border-color: var(--danger); color: var(--danger); }
.errors { padding: 7px 10px; margin-bottom: 10px; border: 1px solid var(--danger); border-radius: var(--radius); }
.errors ul { margin: 0; padding-left: 16px; }
.notice { background: var(--warn-bg); padding: 6px 24px; font-size: 12px; color: #6b5310; border-bottom: 1px solid #efe3bf; }

/* ---- Werkzeugleiste über der Liste */
.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.toolbar h1 { margin: 0; flex: 1; }
.toolbar .count { color: var(--faint); font-weight: 400; margin-left: 6px; }
.toolbar input[type=search] { width: 200px; }

/* ---- Aufgabenformular */
.taskform {
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 16px;
}
.taskform[hidden] { display: none; }
.grid { display: grid; gap: 10px 12px; }
.grid.task { grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 0.9fr) minmax(0, 0.6fr); }
.grid .wide { grid-column: 1 / -1; }
.formfoot { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.preview { flex: 1; color: var(--muted); font-size: 12px; }
.preview.past { color: var(--danger); }

/* ---- Listen */
.list { border-top: 1px solid var(--line); }
.row {
  display: grid; align-items: center; gap: 12px;
  padding: 6px 4px; border-bottom: 1px solid var(--line); min-height: 34px;
}
.row:hover { background: var(--hover); }
.row.head { color: var(--faint); font-size: 11.5px; min-height: 0; padding-top: 4px; padding-bottom: 4px; }
.row.head:hover { background: none; }
.tasks .row { grid-template-columns: minmax(0, 1fr) 140px 160px 190px 28px; }
.sent .row { grid-template-columns: 130px minmax(0, 1fr) 190px 190px 28px; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sub { display: block; font-size: 12px; color: var(--faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tag { font-size: 11.5px; color: var(--muted); border: 1px solid var(--line-strong); border-radius: 2px; padding: 0 4px; margin-left: 6px; }
.err { color: var(--danger); font-size: 12px; display: block; }
.empty { padding: 28px 4px; color: var(--muted); border-bottom: 1px solid var(--line); }

/* ---- Zeilenmenü */
.menu { position: relative; justify-self: end; }
.menu summary {
  list-style: none; cursor: pointer; width: 24px; height: 24px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; color: var(--faint); font-size: 16px; line-height: 1;
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary:hover, .menu[open] summary { color: var(--fg); background: #eee; }
.menu .pop {
  position: absolute; right: 0; top: 26px; z-index: 5; min-width: 130px;
  background: #fff; border: 1px solid var(--line-strong); border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(0,0,0,.08); padding: 4px 0;
}
.menu .pop a, .menu .pop button {
  display: block; width: 100%; text-align: left; font: inherit; color: var(--fg);
  background: none; border: 0; padding: 5px 12px; cursor: pointer; text-decoration: none;
}
.menu .pop a:hover, .menu .pop button:hover { background: var(--hover); }
.menu .pop .danger { color: var(--danger); }
.menu form { margin: 0; }

/* ---- Einstellungen */
.section { padding: 18px 0; border-bottom: 1px solid var(--line); }
.section:first-of-type { padding-top: 4px; }
.section .hint { color: var(--muted); font-size: 12px; margin: -4px 0 10px; }
.grid.mail { grid-template-columns: minmax(0, 2fr) minmax(0, 0.7fr) minmax(0, 1fr); max-width: 720px; }
.grid.two { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); max-width: 720px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 720px; }
.inline { display: flex; align-items: center; gap: 8px; max-width: 720px; }
.inline input, .inline select { flex: 1; }
.check { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; margin: 0; }
.recipients { max-width: 720px; border-top: 1px solid var(--line); margin-bottom: 10px; }
.recipients .row { grid-template-columns: minmax(0, 1fr) 64px 84px 180px; }
.recipients form.edit { display: flex; gap: 6px; margin: 0; }
.recipients form.edit input { height: 26px; }
.actions { display: flex; gap: 4px; justify-content: flex-end; }
.actions form { margin: 0; }
.std { font-size: 12px; color: var(--muted); }

/* ---- Login */
.login { max-width: 300px; margin: 14vh auto 0; padding: 0 24px; }
.login .brand { display: block; margin-bottom: 18px; font-size: 15px; }
.login .field { margin-bottom: 10px; }
.login .btn { width: 100%; justify-content: center; margin-top: 4px; }

/* ---- Sonstiges */
pre.log { font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; border: 1px solid var(--line); padding: 12px; border-radius: var(--radius); }
table.plain { border-collapse: collapse; min-width: 360px; }
table.plain td { padding: 4px 16px 4px 0; border-bottom: 1px solid var(--line); }
.back { color: var(--muted); text-decoration: none; font-size: 12px; }
.back:hover { color: var(--fg); }

@media (max-width: 760px) {
  .top { padding: 0 14px; gap: 14px; }
  .brand { display: none; }
  .nav { gap: 14px; }
  .notice { padding: 6px 14px; }
  .toolbar { flex-wrap: wrap; }
  .toolbar h1 { flex-basis: 100%; }
  .toolbar input[type=search] { flex: 1; width: auto; }
  .row { row-gap: 2px; }
  main { padding: 16px 14px 40px; }
  .grid.task, .grid.mail, .grid.two, .grid.three { grid-template-columns: minmax(0, 1fr); }
  .tasks .row { grid-template-columns: minmax(0, 1fr) 28px; }
  .tasks .row > .c-rhythm, .tasks .row > .c-rec, .tasks .row.head > :not(:first-child) { display: none; }
  .tasks .row > .c-due { grid-column: 1; grid-row: 2; font-size: 12px; }
  .sent .row { grid-template-columns: minmax(0, 1fr) 28px; }
  .sent .row > .c-at, .sent .row > .c-rec, .sent .row.head > :not(:nth-child(2)) { display: none; }
  .toolbar input[type=search] { width: 120px; }
  .recipients .row { grid-template-columns: minmax(0, 1fr); }
}