:root {
  color-scheme: light dark;
  --bg: #fafaf9;
  --fg: #1c1917;
  --mut: #78716c;
  --line: #d6d3d1;
  --card: #fff;
  --acc: #2563eb;
  --acc-fg: #fff;
  --err: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --fg: #f5f5f4;
    --mut: #a8a29e;
    --line: #44403c;
    --card: #1c1917;
    --acc: #60a5fa;
    --acc-fg: #0c0a09;
    --err: #f87171;
  }
}
@media (min-width: 1600px) {
  html { font-size: 125%; } /* Fernseher: alles etwas grösser */
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 46rem; margin: 0 auto; padding: 1rem 1rem 3rem; }
a { color: var(--acc); }

header { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.logo { font-size: 1.4rem; font-weight: 400; color: var(--fg); text-decoration: none; letter-spacing: -0.02em; }
.logo b { color: var(--acc); font-weight: 700; }
.lang { font-size: 0.9rem; color: var(--mut); }

#intro h1 { font-size: 1.6rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.4rem; }
#intro p { margin: 0 0 1.25rem; color: var(--mut); }
/* Auf Notizseiten und nach dem Erstellen nur die App zeigen */
.note #intro, .note #open, .note #about, .note .lang, .done #intro, .done #open { display: none; }

textarea, input, select {
  width: 100%;
  font: inherit; /* mind. 16px: iOS zoomt sonst beim Fokussieren */
  color: var(--fg);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.6rem 0.75rem;
}
textarea { min-height: 40vh; resize: vertical; white-space: pre-wrap; overflow-wrap: anywhere; }
:is(textarea, input, select, button, a):focus-visible { outline: 3px solid var(--acc); outline-offset: 2px; }

.open { margin: 0 0 1.25rem; }
.open label { display: block; font-size: 0.85rem; color: var(--mut); margin-bottom: 0.3rem; }
.open .row { display: flex; gap: 0.5rem; }
.open input { flex: 1; min-width: 0; padding: 0.5rem 0.75rem; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: 0.08em; }
.open input::placeholder { letter-spacing: normal; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.open button { padding: 0.5rem 1rem; }

.count { margin: 0.25rem 0 1rem; text-align: right; color: var(--mut); font-size: 0.875rem; }
.count.over { color: var(--err); font-weight: 600; }

.opts { display: grid; gap: 1rem 1.25rem; grid-template-columns: 1fr 1fr; margin-bottom: 1.25rem; }
.opts label { display: flex; flex-direction: column; gap: 0.25rem; }
.opts small { color: var(--mut); font-size: 0.8rem; }
.checks { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 0.5rem 1.75rem; }
@media (max-width: 34rem) {
  .opts { grid-template-columns: 1fr; }
  .checks { flex-direction: column; }
}
.submit { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; }
.trust { color: var(--mut); font-size: 0.85rem; }
.opts .check { flex-direction: row; align-items: center; gap: 0.6rem; }
.check input { width: 1.25rem; height: 1.25rem; flex: none; }
.check input:disabled + span { opacity: 0.45; }

button, .btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.65rem 1.1rem;
  cursor: pointer;
  text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--acc); }
.primary { color: var(--acc-fg); background: var(--acc); border-color: var(--acc); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
.link {
  margin: 0.5rem 0;
  padding: 0.9rem 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  font: 1.15rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
  user-select: all;
}
.created-info { display: flex; flex-wrap: wrap; gap: 1.25rem; align-items: flex-start; margin-top: 1.25rem; }
.created-info > div { flex: 1; min-width: 14rem; }
.qr { flex: none; width: 10rem; padding: 0.4rem; background: #fff; border-radius: 0.5rem; }
.qr svg { display: block; width: 100%; height: auto; }
.code { margin: 0; font: 700 1.5rem/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: 0.12em; }

.box { padding: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: 0.5rem; }
.box label { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 1rem; }
.hint { color: var(--mut); font-size: 0.9rem; margin: 0.5rem 0 0; }
#msg { min-height: 1.5rem; margin: 1rem 0 0; }
#msg.err { color: var(--err); font-weight: 600; }

#about { margin-top: 2.5rem; border-top: 1px solid var(--line); padding-top: 0.5rem; }
#about h2 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
#about ol, #about ul { padding-left: 1.25rem; margin: 0; }
#about li { margin: 0.35rem 0; }
#about details { border-bottom: 1px solid var(--line); padding: 0.6rem 0; }
#about summary { cursor: pointer; font-weight: 600; }
#about details p { margin: 0.5rem 0 0; color: var(--mut); }

.page h1 { font-size: 1.5rem; }
.page h2 { font-size: 1.1rem; margin-top: 1.75rem; }
.page p, .page li { color: var(--fg); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr)); gap: 0.75rem; margin: 0.5rem 0 0.5rem; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 0.6rem; padding: 0.9rem 1rem; }
.tile-n { font: 700 1.9rem/1.1 system-ui, sans-serif; letter-spacing: -0.02em; }
.tile-l { color: var(--mut); font-size: 0.85rem; margin-top: 0.2rem; }
.chart { display: flex; align-items: flex-end; gap: 2px; height: 7rem; margin: 0.5rem 0 0; padding: 0.4rem; background: var(--card); border: 1px solid var(--line); border-radius: 0.6rem; }
.chart .bar { flex: 1; min-height: 2px; background: var(--acc); border-radius: 2px 2px 0 0; opacity: 0.85; }

footer { margin-top: 2rem; color: var(--mut); font-size: 0.85rem; }
footer a { color: var(--mut); }
.offscreen { position: fixed; left: -9999px; top: 0; }