/* Language Tutor: the demo's chat box, styled on top of the site's /styles.css. The class names
   come from the tutor's own views (js/views/), so everything is scoped to .tutor-demo. */
[hidden] { display: none !important; }

.tutor-demo {
  --learner: #FFF1BF;
  --recording: #C2541B;
  --ok: #2F6B3A;
  display: flex; flex-direction: column;
  height: min(78vh, 720px); min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--rule); border-radius: 16px;
  background: #fff;
}
.tutor-demo button { font: inherit; color: inherit; cursor: pointer; touch-action: manipulation; }
.tutor-demo button:disabled { cursor: default; opacity: .5; }
.tutor-demo :focus-visible { outline: 2px solid var(--butter); outline-offset: 2px; }

/* The strip across the top: what this is, and the turns left */
.demo-bar { padding: 12px 18px; border-bottom: 1px solid var(--rule); background: var(--paper); color: var(--ink-2); font-size: .92rem; }
.demo-badge {
  display: inline-block; margin-right: .6em; padding: .1em .6em;
  border-radius: 999px; background: var(--butter); color: var(--ink);
  font-size: .75rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
}
.demo-counter { color: var(--ink); font-weight: 600; }
.demo-end { margin-top: 6px; color: var(--ink); }
.demo-end a { color: var(--crust); }
.human-check:not(:empty) { display: flex; justify-content: center; margin-top: 8px; }

/* The conversation */
.tutor-demo .view { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.tutor-demo .log-scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 22px clamp(14px, 3vw, 28px); }
.tutor-demo .log { display: flex; flex-direction: column; gap: 14px; max-width: 720px; margin: 0 auto; padding: 0; list-style: none; }
.tutor-demo .turn { display: flex; flex-direction: column; gap: 6px; max-width: 86%; }
.tutor-demo .turn-learner { align-self: flex-end; align-items: flex-end; }
.tutor-demo .turn-tutor { align-self: flex-start; align-items: flex-start; }
.tutor-demo .bubble { padding: 10px 14px; border-radius: 16px; line-height: 1.45; }
.tutor-demo .turn-learner .bubble { border-bottom-right-radius: 5px; background: var(--learner); }
.tutor-demo .turn-tutor .bubble {
  display: flex; align-items: flex-start; gap: 6px;
  border: 1px solid var(--rule); border-bottom-left-radius: 5px; background: var(--paper);
}
.tutor-demo .bubble-text { margin: 0; overflow-wrap: anywhere; }
.tutor-demo mark.unclear { padding: 0 2px; border-radius: 4px; background: #F6E6B4; color: inherit; text-decoration: underline dotted; }
.tutor-demo .token { white-space: nowrap; }
.tutor-demo .part-target { color: var(--ink); font-weight: 600; }
.tutor-demo .part-native { color: var(--ink-2); }

.tutor-demo .icon-button {
  flex: none; display: grid; place-items: center; width: 30px; height: 30px;
  border: 0; border-radius: 50%; background: transparent; color: var(--ink-3);
}
.tutor-demo .icon-button:hover { background: var(--rule); color: var(--ink); }
.tutor-demo .icon { width: 20px; height: 20px; }
.tutor-demo .replay[aria-busy="true"] { cursor: progress; animation: tutor-breathe 1.2s ease-in-out infinite; }

.tutor-demo .corrections-toggle {
  margin-top: 8px; padding: 2px 10px;
  border: 1px solid var(--rule); border-radius: 999px; background: #fff; font-size: .85rem;
}
.tutor-demo .corrections { display: grid; gap: 10px; margin: 10px 0 2px; padding: 0; list-style: none; font-size: .92rem; }
.tutor-demo .corrections .said { color: var(--ink-3); text-decoration: line-through; }
.tutor-demo .corrections .better { color: var(--ok); }
.tutor-demo .corrections .why { display: block; color: var(--ink-3); font-size: .85rem; }

.tutor-demo .new-words { display: flex; flex-direction: column; gap: 4px; }
.tutor-demo .new-words .muted { color: var(--ink-3); font-size: .78rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; }
.tutor-demo .chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.tutor-demo .chip { padding: 3px 10px; border-radius: 999px; background: var(--learner); font-size: .82rem; }

/* The dock: starters, status line, text box and the microphone */
.tutor-demo .dock {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 14px clamp(14px, 3vw, 28px) 16px; border-top: 1px solid var(--rule); background: #fff;
}
.tutor-demo .starters { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 720px; }
.tutor-demo .starter {
  padding: 7px 14px; border: 1px solid var(--rule); border-radius: 999px;
  background: var(--paper); font-size: .92rem; transition: border-color .2s;
}
.tutor-demo .starter:hover:not(:disabled) { border-color: var(--ink); }
/* The site's .status is the hero's "Live" badge; here it is the tutor's status line. */
.tutor-demo .status {
  display: block; min-height: 1.4em; max-width: 720px; margin: 0;
  color: var(--ink-2); font-size: .92rem; text-align: center;
}
.tutor-demo .status::before { content: none; }
.tutor-demo .input-row { display: flex; align-items: flex-start; gap: 12px; width: 100%; max-width: 720px; }
.tutor-demo .composer { flex: 1; min-width: 0; display: flex; gap: 8px; margin-top: 14px; }
.tutor-demo .composer input {
  flex: 1; min-width: 0; padding: .7em 1em;
  border: 1px solid var(--rule); border-radius: 999px; background: #fff;
  color: var(--ink); font: 400 1rem var(--sans); /* 16px keeps iOS from zooming in */
}
.tutor-demo .composer input:focus { border-color: var(--ink); outline: 2px solid var(--butter); outline-offset: 1px; }
.tutor-demo .secondary {
  flex: none; padding: .55em 1.1em;
  border: 1px solid var(--ink); border-radius: 999px; background: transparent;
  font-size: .92rem; font-weight: 500;
}
.tutor-demo .secondary:hover:not(:disabled) { background: var(--ink); color: var(--paper); }

.tutor-demo .mic-dock { flex: none; display: flex; flex-direction: column; align-items: center; gap: 4px; width: 88px; }
.tutor-demo .mic {
  display: grid; place-items: center; width: 68px; height: 68px;
  border: 0; border-radius: 50%; background: var(--butter); color: var(--ink);
  box-shadow: 0 6px 18px rgb(181 113 46 / 28%);
  transition: transform .15s, background-color .2s;
}
.tutor-demo .mic:hover:not(:disabled) { background: #FFCF1F; }
.tutor-demo .mic:active:not(:disabled) { transform: scale(.96); }
.tutor-demo .mic .icon { width: 30px; height: 30px; }
.tutor-demo .mic .icon-stop,
.tutor-demo .mic[data-state="recording"] .icon-mic { display: none; }
.tutor-demo .mic[data-state="recording"] .icon-stop { display: block; }
.tutor-demo .mic[data-state="recording"] { background: var(--recording); color: #fff; animation: tutor-pulse 1.4s ease-in-out infinite; }
.tutor-demo .mic[data-state="processing"] { cursor: progress; animation: tutor-breathe 1.2s ease-in-out infinite; }
.tutor-demo .mic-label { color: var(--ink-3); font-size: .8rem; white-space: nowrap; }
.tutor-demo .mic-clock { min-height: 1.2em; color: var(--recording); font-size: .85rem; font-variant-numeric: tabular-nums; }

@keyframes tutor-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgb(194 84 27 / 40%); }
  50% { box-shadow: 0 0 0 14px transparent; }
}
@keyframes tutor-breathe { 50% { opacity: .4; } }
@media (prefers-reduced-motion: reduce) {
  .tutor-demo .mic, .tutor-demo .replay { animation: none !important; transition: none; }
}

.tutor-note { margin-top: 14px; text-align: center; }

@media (max-width: 640px) {
  .tutor-demo { height: min(82vh, 680px); min-height: 480px; border-radius: 12px; }
  .tutor-demo .turn { max-width: 92%; }
  .tutor-demo .mic-dock { width: 76px; }
  .tutor-demo .mic { width: 60px; height: 60px; }
}