:root {
  --bg: #f6f5f8;
  --card: #ffffff;
  --text: #1d1b22;
  --muted: #6c6877;
  --line: #e3e0ea;
  --accent: #6d4bc4;
  --accent-text: #ffffff;
  --q-bg: #efeaf9;
  --error: #b3261e;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15141a;
    --card: #1f1d26;
    --text: #ecebf0;
    --muted: #9b97a8;
    --line: #34313f;
    --accent: #a487ec;
    --accent-text: #15141a;
    --q-bg: #2b2540;
    --error: #ff8a80;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; align-items: center; gap: 16px; font-size: 15px; }
nav form { margin: 0; }
.who { color: var(--muted); }

main { max-width: 760px; margin: 0 auto; padding: 28px 16px 64px; }
h1 { font-size: 1.5rem; margin: 0 0 20px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}
.narrow { max-width: 380px; margin: 40px auto; display: grid; gap: 14px; }
.narrow h1 { margin: 0; }

label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
}
textarea { resize: vertical; min-height: 96px; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}
button:disabled { opacity: .55; cursor: wait; }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 400; }

.error { color: var(--error); margin: 0; }
.muted, .hint { color: var(--muted); font-size: 14px; }
.row { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; gap: 12px; }

.chars { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.char {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
}
.char:hover { border-color: var(--accent); }
.initial {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 50%;
  background: var(--q-bg);
  color: var(--accent);
  font-weight: 700;
  font-size: 1.2rem;
}

#history { margin-top: 24px; display: grid; gap: 14px; }
.qa {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  overflow-wrap: anywhere;
}
.qa .q { margin: 0 0 10px; padding: 10px 12px; background: var(--q-bg); border-radius: 8px; font-weight: 600; }
.qa .a.pending { color: var(--muted); font-style: italic; }
.qa .a.error { color: var(--error); }
.qa footer { margin-top: 10px; font-size: 13px; color: var(--muted); }

.level {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  vertical-align: 1px;
}
.level-wissend { background: #d9f2e1; color: #1d6b3a; }
.level-vermutend { background: #fdf0c8; color: #7a5600; }
.level-unwissend { background: #ececf0; color: #55525f; }
@media (prefers-color-scheme: dark) {
  .level-wissend { background: #1d3a27; color: #8fdcaa; }
  .level-vermutend { background: #3d3216; color: #f2cf6d; }
  .level-unwissend { background: #2e2c36; color: #b3afc0; }
}