/* Demo de Talk (sin API): avatar, chat y ayudas, con la paleta clara de la Lección 0 */
.demo-top { display: flex; justify-content: space-between; align-items: center; margin: 18px 0 12px; }
.demo-back { color: var(--electric); text-decoration: none; font-weight: 600; }
.demo-badge { background: var(--warn-bg); color: var(--warn-ink); border-radius: 999px; padding: 6px 12px; font-size: .85rem; font-weight: 700; }
.demo-hero h1 { font-size: 1.7rem; margin: 6px 0 10px; }
.avatar-card { display: flex; justify-content: center; margin-bottom: 12px; }
.avatar-wrap { display: flex; align-items: center; gap: 16px; max-width: 640px; width: 100%; }
.avatar { width: 150px; height: 150px; flex: 0 0 150px; filter: drop-shadow(0 6px 16px rgba(11,31,75,.18)); }
.avatar-bubble { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 16px; font-size: 1rem; line-height: 1.5; color: var(--ink); flex: 1 1 auto; min-height: 48px; }
.avatar-bubble::before { content: ""; position: absolute; left: -9px; top: 50%; transform: translateY(-50%) rotate(45deg); width: 16px; height: 16px; background: #fff; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.av-mouth-open { opacity: 0; }
.talking .av-mouth-open { animation: av-talk .28s infinite alternate; }
.talking .av-mouth-closed { opacity: 0; }
@keyframes av-talk { from { opacity: .25; transform: scaleY(.5); transform-origin: 100px 116px; } to { opacity: 1; transform: scaleY(1); transform-origin: 100px 116px; } }
.av-eyes { animation: av-blink 5s infinite; transform-origin: 100px 84px; }
@keyframes av-blink { 0%, 92%, 100% { transform: scaleY(1); } 95% { transform: scaleY(.08); } }
.av-susie { display: none; }
.avatar-wrap[data-avatar="susie"] .av-susie { display: block; }
.avatar-wrap[data-avatar="susie"] .av-alex { display: none; }
.avatar-wrap[data-avatar="susie"] .av-mouth-closed:not(.av-susie) { display: none; }
.avatar-wrap[data-avatar="susie"] .av-skin { fill: #b9794f; }
.avatar-wrap[data-avatar="susie"] .av-skin-shade { fill: #a5683f; }
.avatar-wrap[data-avatar="susie"] .av-brow { stroke: #3d2314; }
.avatar-wrap[data-avatar="susie"] .av-nose { stroke: #8f5533; }
.avatar-pick { display: flex; justify-content: center; gap: 10px; margin: 0 0 16px; }
.avatar-opt { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; color: var(--ink-dim); font-size: .95rem; cursor: pointer; font-family: inherit; }
.avatar-opt span { color: var(--ink); font-weight: 700; }
.avatar-opt.on { border-color: var(--electric); background: var(--blue-soft); color: var(--ink); }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.setting-label { font-size: .95rem; }
.setting-hint { display: block; font-size: .8rem; color: var(--ink-dim); }
.levels { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: #fff; }
.lvl { background: transparent; border: 0; padding: 9px 15px; font-size: .95rem; font-weight: 700; color: var(--ink-dim); cursor: pointer; font-family: inherit; }
.lvl + .lvl { border-left: 1px solid var(--line); }
.lvl.on { background: var(--electric); color: #fff; }
.chat-log { display: flex; flex-direction: column; gap: 10px; max-height: 380px; overflow-y: auto; padding: 4px 2px 10px; }
.chat-bubble { max-width: 84%; padding: 10px 14px; border-radius: 14px; font-size: 1rem; line-height: 1.5; }
.chat-bubble.ai { align-self: flex-start; background: var(--bg-cold); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.chat-bubble.user { align-self: flex-end; background: var(--blue-soft); color: var(--navy); border-bottom-right-radius: 4px; }
.chat-bubble.ai .w { cursor: default; }
.slow-btn { background: transparent; border: 0; cursor: pointer; font-size: 1rem; margin-left: 6px; opacity: .7; }
.correction-card { align-self: flex-start; max-width: 84%; background: var(--improve-bg); border: 1px solid #f1d58a; border-radius: 14px; padding: 10px 14px; font-size: .95rem; }
.correction-title { color: var(--improve); font-weight: 700; margin-bottom: 4px; }
.correction-better { font-size: 1.1rem; font-weight: 700; color: var(--navy); }
.correction-orig { color: var(--ink-dim); font-size: .85rem; margin-top: 4px; }
.correction-actions { display: flex; align-items: center; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.correction-hint { color: var(--ink-dim); font-size: .85rem; }
.help-row { margin-top: 10px; }
.hint-box { margin: 10px auto 0; background: var(--bg-cold); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: .95rem; max-width: 520px; text-align: left; }
.hint-opt { display: flex; gap: 10px; align-items: center; padding: 6px 0; }
.hint-en { font-weight: 600; }
.hint-es, .hint-foot { color: var(--ink-dim); font-size: .85rem; }
.summary-score { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 12px; }
.summary-score strong { font-size: 2rem; color: var(--electric); }
.rephrase-list { list-style: none; padding: 0; margin: 0; }
.rephrase-list li { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--line); }
.rephrase-list .said { color: var(--ink-dim); text-decoration: line-through; }
.rephrase-list .better { font-weight: 600; }
@media (max-width: 520px) { .avatar-wrap { flex-direction: column; text-align: center; } .avatar-bubble::before { left: 50%; top: -9px; transform: translateX(-50%) rotate(135deg); } }