/* Kurs-Assistent: alle Regeln mit Präfix .ka-, damit die Kursseite unberührt bleibt. */
.ka-root, .ka-panel {
  --ka-ink: #0f1f3a; --ka-ink-2: #33415c; --ka-muted: #5b6780; --ka-line: #d9e1ee;
  --ka-blue: #1f5fd1; --ka-sun: #f4b43c; --ka-bg: #f7f9fc;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
}
.ka-root *, .ka-panel * { box-sizing: border-box; }

.ka-fab {
  position: fixed; right: 16px; bottom: 16px; z-index: 2147483000;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px 12px 14px; border: 0; border-radius: 999px;
  background: #f4b43c; color: #1b1300;
  font: 700 16px/1.2 "Inter", system-ui, -apple-system, sans-serif;
  box-shadow: 0 6px 20px rgba(15, 31, 58, .28), 0 2px 6px rgba(15, 31, 58, .18);
  cursor: pointer;
}
.ka-fab:hover { background: #f7c35e; }
.ka-fab:focus-visible { outline: 3px solid #1f5fd1; outline-offset: 3px; }
.ka-fab[hidden] { display: none; }
.ka-fab svg { flex: none; }

.ka-panel {
  display: flex; flex-direction: column;
  background: #fff; color: var(--ka-ink);
  font-size: 15px;
}
.ka-panel[hidden] { display: none; }
.ka-root .ka-panel {
  position: fixed; right: 16px; bottom: 16px; z-index: 2147483001;
  width: 400px; height: 600px; max-height: calc(100vh - 32px); max-width: calc(100vw - 32px);
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 18px 50px rgba(15, 31, 58, .32), 0 4px 12px rgba(15, 31, 58, .16);
  border: 1px solid var(--ka-line);
}
.ka-inline {
  height: min(72vh, 680px); min-height: 420px;
  border: 1px solid var(--ka-line); border-radius: 16px; overflow: hidden;
}

.ka-head {
  flex: none; display: flex; align-items: center; justify-content: space-between; gap: 8px;
  background: #0f1f3a; color: #fff; padding: 10px 10px 10px 16px;
}
.ka-title { margin: 0; font-size: 17px; font-weight: 800; color: #fff; letter-spacing: 0; }
.ka-head-actions { display: flex; gap: 6px; align-items: center; }
.ka-head-btn {
  border: 1px solid rgba(255, 255, 255, .35); background: transparent; color: #fff;
  font: 600 13px/1 inherit; font-family: inherit; padding: 8px 10px; border-radius: 8px; cursor: pointer;
}
.ka-head-btn:hover { background: rgba(255, 255, 255, .12); }
.ka-head-btn:focus-visible { outline: 2px solid #f4b43c; outline-offset: 2px; }
.ka-head-btn:disabled { opacity: .5; cursor: not-allowed; }
.ka-close { font-size: 22px; line-height: 1; padding: 4px 10px 6px; }

.ka-log {
  flex: 1 1 auto; overflow-y: auto; overscroll-behavior: contain;
  padding: 14px 14px 6px; background: var(--ka-bg);
  display: flex; flex-direction: column; gap: 10px;
}
.ka-log:focus-visible { outline: 2px solid var(--ka-blue); outline-offset: -2px; }
.ka-welcome { color: var(--ka-ink-2); }
.ka-welcome p { margin: 0 0 8px; }
.ka-muted { color: var(--ka-muted); font-size: 13px; }
.ka-chips { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.ka-chip {
  border: 1px solid #c4cfe0; background: #fff; color: var(--ka-ink);
  font: 600 14px/1.35 inherit; font-family: inherit; text-align: left;
  padding: 8px 12px; border-radius: 14px; cursor: pointer;
}
.ka-chip:hover { border-color: var(--ka-blue); color: #17489f; }
.ka-chip:focus-visible { outline: 2px solid var(--ka-blue); outline-offset: 2px; }
.ka-chip:disabled { opacity: .55; cursor: not-allowed; }

.ka-msg { max-width: 92%; padding: 9px 12px; border-radius: 14px; overflow-wrap: anywhere; }
.ka-msg p { margin: 0 0 8px; }
.ka-msg > :last-child { margin-bottom: 0; }
.ka-msg ul, .ka-msg ol { margin: 0 0 8px; padding-left: 20px; }
.ka-msg li { margin: 2px 0; }
.ka-msg code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; background: #eef2f8; padding: 1px 4px; border-radius: 4px; }
.ka-user { align-self: flex-end; background: #0f1f3a; color: #fff; border-bottom-right-radius: 4px; }
.ka-user p { white-space: pre-wrap; }
.ka-assistant { align-self: flex-start; background: #fff; border: 1px solid var(--ka-line); border-bottom-left-radius: 4px; color: var(--ka-ink); }
.ka-wait { display: flex; align-items: center; gap: 8px; color: var(--ka-muted); font-style: italic; }
.ka-dots { width: 16px; height: 16px; flex: none; border: 3px solid #f4d48f; border-top-color: #b07a00; border-radius: 50%; animation: ka-spin 1s linear infinite; }
@keyframes ka-spin { to { transform: rotate(360deg); } }
.ka-error { align-self: stretch; background: #fde8e6; color: #9b2a21; padding: 9px 12px; border-radius: 12px; font-size: 14px; }

.ka-ref {
  display: inline-block; font-weight: 800; font-size: .85em; line-height: 1.4;
  padding: 0 6px; border-radius: 6px; background: #e7f0fd; color: #17489f; text-decoration: none;
}
.ka-ref:hover { background: #d3e3fb; text-decoration: underline; }
.ka-ref:focus-visible { outline: 2px solid var(--ka-blue); outline-offset: 1px; }

.ka-code { position: relative; margin: 0 0 8px; }
.ka-code pre {
  margin: 0; padding: 30px 12px 10px; background: #0f1f3a; color: #eef3fb; border-radius: 10px;
  white-space: pre-wrap; overflow-wrap: anywhere; font-size: 13px; line-height: 1.45;
}
.ka-code pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.ka-copy {
  position: absolute; top: 6px; right: 6px; border: 0; border-radius: 6px;
  background: #f4b43c; color: #1b1300; font: 700 12px/1 inherit; font-family: inherit; padding: 5px 8px; cursor: pointer;
}
.ka-copy:focus-visible { outline: 2px solid #fff; outline-offset: 1px; }

.ka-form { flex: none; border-top: 1px solid var(--ka-line); background: #fff; padding: 10px 12px 8px; margin: 0; }
.ka-row { display: flex; gap: 8px; align-items: flex-end; }
.ka-input {
  flex: 1 1 auto; min-width: 0; resize: none; max-height: 140px;
  border: 1px solid #b4c2d8; border-radius: 12px; padding: 9px 11px;
  font: 400 16px/1.4 inherit; font-family: inherit; color: var(--ka-ink); background: #fff;
}
.ka-input:focus { outline: 2px solid var(--ka-blue); outline-offset: 0; border-color: var(--ka-blue); }
.ka-send {
  flex: none; border: 0; border-radius: 12px; padding: 11px 14px;
  background: #f4b43c; color: #1b1300; font: 700 15px/1 inherit; font-family: inherit; cursor: pointer;
}
.ka-send:disabled { opacity: .55; cursor: not-allowed; }
.ka-send:focus-visible { outline: 3px solid var(--ka-blue); outline-offset: 2px; }
.ka-hint { margin: 6px 2px 0; font-size: 12px; color: var(--ka-muted); }

.ka-offscreen { position: fixed; left: -9999px; top: 0; opacity: 0; }

.ka-flash { animation: ka-flash 2.4s ease-out; }
@keyframes ka-flash {
  0%, 30% { box-shadow: 0 0 0 4px #f4b43c, 0 0 0 10px rgba(244, 180, 60, .35); }
  100% { box-shadow: 0 0 0 0 rgba(244, 180, 60, 0); }
}

@media (max-width: 640px) {
  body.ka-fab-space { padding-bottom: 76px; }
  .ka-fab { right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); padding: 11px 16px 11px 13px; font-size: 15px; }
  .ka-root .ka-panel {
    inset: 0; width: 100%; height: 100%; max-width: none; max-height: none;
    height: 100dvh; border-radius: 0; border: 0;
  }
  html.ka-open, html.ka-open body { overflow: hidden; }
  .ka-form { padding-bottom: max(8px, env(safe-area-inset-bottom)); }
  .ka-inline { height: calc(100dvh - 210px); min-height: 380px; }
}

@media (prefers-reduced-motion: reduce) {
  .ka-flash, .ka-dots { animation: none; }
  .ka-flash { outline: 4px solid #f4b43c; }
}

@media print {
  .ka-root, .ka-fab, .ka-panel { display: none !important; }
  body.ka-fab-space { padding-bottom: 0; }
}