:root {
  color-scheme: light;
  --paper: #E8EDF1;
  --card: #F7F9FB;
  --ink: #1E2838;
  --muted: #66707F;
  --line: #C9D2DB;
  --key: #25406B;
  --key-ink: #F7F9FB;
  --open: #B7791F;
  --danger: #A83A3A;
  --ok: #2E7D4F;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #151B24;
    --card: #1D2530;
    --ink: #E3E8EE;
    --muted: #8B95A3;
    --line: #313B48;
    --key: #7FA2D9;
    --key-ink: #10161E;
    --open: #E0A84A;
    --danger: #E07A7A;
    --ok: #6CC391;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.45 "Segoe UI", system-ui, -apple-system, sans-serif;
  font-variant-numeric: tabular-nums;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 12px; padding-left: max(12px, env(safe-area-inset-left)); padding-right: max(12px, env(safe-area-inset-right)); padding-bottom: max(12px, env(safe-area-inset-bottom)); }
.wrap.narrow { max-width: 560px; }
a { color: var(--key); }

header { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; flex-wrap: wrap; }
header h1 { font-size: 17px; font-weight: 600; margin: 0 auto 0 0; order: -2; }
.daynav { display: flex; gap: 6px; align-items: center; order: -1; }
header input[type=date] { width: 165px; }
h2 { font-size: 16px; font-weight: 600; margin: 0 0 8px; }

input, textarea, button, .btn { font: inherit; color: inherit; }
textarea, input[type=text], input[type=password] { -webkit-appearance: none; appearance: none; }
::placeholder { color: var(--muted); opacity: 1; }
textarea { color: var(--ink); caret-color: var(--key); }
input {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  min-width: 0;
}
textarea {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  min-width: 0;
  resize: none;
  overflow: hidden;
  line-height: 1.35;
  display: block;
  width: 100%;
}
input[type=time] {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .02em;
  padding: 6px 8px;
}
input:focus-visible, textarea:focus-visible, button:focus-visible, .btn:focus-visible { outline: 2px solid var(--key); outline-offset: 1px; }
button, .btn {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: 1.4;
}
button:hover, .btn:hover { border-color: var(--muted); }
button.primary { background: var(--key); color: var(--key-ink); border-color: var(--key); font-weight: 600; }
button.primary:hover { filter: brightness(1.12); }
button.danger { color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }

.entry {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 10px;
}
.row { display: grid; grid-template-columns: 118px auto auto 160px 1fr; gap: 6px; }
.keys { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.keys button {
  background: var(--key);
  color: var(--key-ink);
  border: none;
  min-width: 54px;
  padding: 10px 0;
  font-size: 16px;
  font-weight: 600;
}
.keys button:hover { filter: brightness(1.12); }
.hint { color: var(--muted); font-size: 13px; margin: 6px 0 0; }
.banner { background: var(--card); border: 1px solid var(--open); color: var(--ink); border-radius: 6px; padding: 8px 10px; margin: 0 0 10px; font-size: 13px; }

.log { margin-top: 12px; }
.log-head, .log-row {
  display: grid;
  grid-template-columns: 100px 14px 100px 160px 1fr 70px 30px;
  gap: 4px;
  align-items: center;
}
.log-head { color: var(--muted); font-size: 13px; padding: 0 4px 4px; }
.log-row { padding: 4px 4px; border-bottom: 1px solid var(--line); }
.log-row input, .log-row textarea { border-color: transparent; background: transparent; padding: 6px 4px; }
.log-row input[type=time] { font-size: 19px; font-weight: 700; padding: 4px 2px; }
.log-row input:hover, .log-row textarea:hover { border-color: var(--line); }
.log-row input:focus, .log-row textarea:focus { background: var(--card); border-color: var(--line); }
.log-row .dash { color: var(--muted); text-align: center; font-size: 18px; }
.log-row .dur { color: var(--muted); font-size: 14px; font-weight: 600; text-align: right; }
.log-row.is-open .dur { color: var(--open); font-weight: 600; }
.log-row .del { border: none; color: var(--muted); padding: 2px; font-size: 16px; }
.log-row .del:hover { color: var(--danger); }
.right { text-align: right; }
.empty { color: var(--muted); padding: 16px 4px; }

footer { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 10px; }
footer .total { margin-right: auto; color: var(--muted); font-size: 17px; }
footer .total b { color: var(--ink); }
.toast { color: var(--key); font-size: 13px; margin-right: auto; }
.toast.err { color: var(--danger); }

/* Formulare (Login, Einstellungen) */
.stack { display: flex; flex-direction: column; gap: 8px; }
.stack label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
.stack input { font-size: 14px; color: var(--ink); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.inline { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.inline input { flex: 1 1 140px; }
.check { display: flex; align-items: center; gap: 4px; }
.msg { margin: 8px 0 0; font-size: 13px; }
.msg.err, .err { color: var(--danger); }
.msg.ok, .ok { color: var(--ok); }
code { background: var(--paper); padding: 1px 4px; border-radius: 3px; }

.items { display: flex; flex-direction: column; }
.item { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.item:last-child { border-bottom: none; }
.item .grow { flex: 1; min-width: 0; }
.item .sub { color: var(--muted); font-size: 12px; }
.item.current .grow::after { content: " · dieses Gerät"; color: var(--ok); font-size: 12px; }
.item.revoked { opacity: .55; }

.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 6px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
td .mini { display: flex; gap: 4px; flex-wrap: wrap; }
td .mini button { padding: 3px 6px; font-size: 12px; }
td input[type=number] { width: 52px; padding: 3px 4px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding-top: 8px; }

  /* Kopfzeile: Zeile 1 Titel + Einstellungen + Abmelden, Zeile 2 Tagesnavigation */
  header { gap: 6px; }
  header h1 { order: 0; margin-right: auto; }
  header #today, header .btn, header #logout { order: 1; }
  .daynav { order: 2; flex-basis: 100%; margin: 4px 0 0; }
  .daynav input[type=date] { flex: 1 1 auto; width: auto; min-width: 0; text-align: center; }
  .daynav button { padding: 8px 18px; }

  /* Eingabe: Zeit + Jetzt + ¼ h in einer Zeile, Kunde und Tätigkeit je volle Breite */
  .row { grid-template-columns: 1fr auto auto; }
  .row #start { grid-column: auto; }
  .row #now, .row #quarter { min-width: 76px; text-align: center; }
  .row #customer, .row #activity { grid-column: 1 / -1; }
  .keys { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .keys button { min-width: 0; padding: 12px 0; font-size: 17px; }
  .hint { font-size: 12px; }

  /* Liste: Zeile 1 Von–Bis, Dauer, Löschen; Zeile 2 Tätigkeit; Zeile 3 Kunde */
  .log-head { display: none; }
  .log-row {
    grid-template-columns: auto auto auto 1fr auto;
    grid-template-areas: "start dash end dur del" "act act act act act" "cust cust cust cust cust";
    gap: 2px 6px;
    padding: 8px 2px;
  }
  .log-row .c-start { grid-area: start; }
  .log-row .dash { grid-area: dash; }
  .log-row .c-end { grid-area: end; }
  .log-row .dur { grid-area: dur; display: block; align-self: center; }
  .log-row .del { grid-area: del; padding: 4px 8px; }
  .log-row .c-act { grid-area: act; }
  .log-row .c-cust { grid-area: cust; font-size: 14px; color: var(--muted); }
  .log-row input[type=time] { font-size: 18px; padding: 4px 0; width: auto; }
  .log-row input, .log-row textarea { padding: 4px 2px; }

  footer { gap: 6px; }
  footer .total { flex-basis: 100%; }
  footer button, footer .btn { flex: 1 1 auto; text-align: center; }

  /* Einstellungen */
  .item { flex-wrap: wrap; }
  .item .grow { flex-basis: 100%; }
  .inline input { flex-basis: 100%; }
  .actions button { flex: 1 1 auto; }
}