:root{
  --ink:#14212b; --muted:#5d6b76; --bg:#f4f6f8; --card:#fff; --line:#dde3e8;
  --brand:#0f3d5e; --brand-2:#1d6fa5; --accent:#f2a516; --ok:#1e8a4c; --bad:#c0392b;
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);
  min-height:100vh;padding-bottom:calc(76px + env(safe-area-inset-bottom));-webkit-tap-highlight-color:transparent}
button{font:inherit;cursor:pointer}
h1{font-size:1.5rem;margin:.2rem 0 .4rem}
h2{font-size:1.1rem;margin:1.6rem 0 .6rem}
.muted{color:var(--muted)} .small{font-size:.8rem} .center{text-align:center}
.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;
  padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:var(--brand);color:#fff}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem}
.logo{width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--brand);display:grid;place-items:center;font-weight:800}
main{max-width:640px;margin:0 auto;padding:18px 16px}
.view{display:none} .view.active{display:block}

.primary{background:var(--brand-2);color:#fff;border:0;border-radius:999px;padding:12px 22px;font-weight:600}
.primary:active{transform:scale(.98)}
.primary.big{font-size:1.15rem;padding:16px 30px;min-width:260px}
.primary.stop{background:var(--bad)}
.primary:disabled{opacity:.6}
.primary.wide{width:100%;margin-top:14px}
.ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink);border-radius:999px;padding:10px 18px}
.topbar .ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.ghost.small{padding:6px 12px;font-size:.85rem}
.ghost.on{border-color:var(--bad);color:var(--bad)}
.danger-link{background:none;border:0;color:var(--bad);margin-top:18px;text-decoration:underline}

.profile-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin:10px 0}
.avatar{width:46px;height:46px;border-radius:50%;background:var(--brand-2);color:#fff;display:grid;place-items:center;font-size:1.3rem;font-weight:700;flex:none}
.avatar.kid{background:var(--accent);color:var(--brand)}
.pc-body{display:flex;flex-direction:column;flex:1}
.chev{font-size:1.6rem;color:var(--muted)}

.form{display:flex;flex-direction:column;gap:16px;background:var(--card);padding:18px;border-radius:var(--radius);border:1px solid var(--line)}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:600}
.form input,.form select,.search{font:inherit;padding:12px;border:1.5px solid var(--line);border-radius:12px;background:#fff;width:100%}
.hint{font-weight:400;font-size:.82rem;color:var(--muted)}
.row{display:flex;gap:10px;justify-content:flex-end}

.talk-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.talk-head>div:first-child{flex:1}
.head-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.badge{display:inline-block;background:#e6f0f7;color:var(--brand);border-radius:999px;padding:4px 12px;font-size:.85rem;font-weight:600}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:16px 0}
.stats div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px;text-align:center}
.stats b{display:block;font-size:1.4rem;color:var(--brand)}
.stats span{font-size:.75rem;color:var(--muted)}

.stage{display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px 0 10px}
.orb{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 35% 30%,#7cc4f2,var(--brand-2) 55%,var(--brand));box-shadow:0 10px 30px rgba(15,61,94,.3);transition:transform .3s}
.orb span{width:60px;height:60px;border-radius:50%;background:rgba(255,255,255,.25)}
.orb.idle{filter:saturate(.5);opacity:.85}
.orb.connecting{animation:pulse 1.2s infinite}
.orb.listening{animation:breathe 2.4s ease-in-out infinite}
.orb.speaking{background:radial-gradient(circle at 35% 30%,#ffd88a,var(--accent) 55%,#c47d00);animation:talk .5s ease-in-out infinite alternate}
@keyframes pulse{50%{opacity:.5}}
@keyframes breathe{50%{transform:scale(1.06)}}
@keyframes talk{to{transform:scale(1.1)}}
.status{min-height:1.4em;text-align:center;font-weight:600;color:var(--brand);margin:0}
.summary{background:#eaf6ef;border:1px solid #bfe3cd;border-radius:12px;padding:12px;margin:0;text-align:center}
.summary a{color:var(--ok)}

.switch{display:flex;align-items:center;gap:8px;margin:14px 0 8px;font-size:.9rem;color:var(--muted)}
.transcript{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;max-height:42vh;overflow-y:auto;min-height:60px}
.transcript:empty::before{content:"Le texte de la conversation s'affichera ici.";color:var(--muted);font-size:.9rem}
.transcript.hidden-text{display:none}
.line{padding:8px 12px;border-radius:14px;margin:6px 0;max-width:88%;line-height:1.4}
.line .who{display:block;font-size:.72rem;font-weight:700;opacity:.7;margin-bottom:2px}
.line.ai{background:#eef4f9}
.line.user{background:#fff4dc;margin-left:auto}
.tips{margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px}
.tips summary{font-weight:600;cursor:pointer}
.tips li{margin:6px 0;line-height:1.4}

.count{font-size:.9rem;background:var(--brand-2);color:#fff;border-radius:999px;padding:2px 10px;vertical-align:middle}
.search{margin:6px 0 12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;margin:10px 0}
.word-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.en{font-size:1.1rem;color:var(--brand)} .fr{color:var(--muted)}
.ex{margin:6px 0 2px;font-style:italic}
.icon{background:#eef4f9;border:0;border-radius:50%;width:38px;height:38px;flex:none}
.said{color:var(--bad);margin:0 0 4px;text-decoration:line-through}
.correct{color:var(--ok);font-weight:600;margin:0}
.expl{margin:6px 0 0;font-size:.92rem}
.history{padding-left:18px} .history li{margin:6px 0}

.tabbar{position:fixed;bottom:0;left:0;right:0;display:flex;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);z-index:5}
.tab{flex:1;background:none;border:0;padding:8px 0 10px;display:flex;flex-direction:column;align-items:center;font-size:.75rem;color:var(--muted)}
.tab span{font-size:1.3rem}
.tab.active{color:var(--brand-2);font-weight:700}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;
  padding:10px 18px;border-radius:999px;opacity:0;transition:.3s;pointer-events:none;z-index:10;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media (min-width:900px){ main{max-width:760px} .orb{width:180px;height:180px} }