:root{--bg:#f4f5f7;--surface:#fff;--surface-2:#ebedf1;--border:#e0e2e8;--text:#14161a;--text-muted:#6b7280;--accent:#4f5eff;--accent-text:#fff;--bubble-bot:#fff;--bubble-user:#4f5eff;--bubble-user-text:#fff;--online:#22c55e;--shadow:0 1px 2px #10121b0f, 0 1px 1px #10121b0a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#0f1115;--surface:#171a21;--surface-2:#1f232c;--border:#2a2f3a;--text:#eef0f4;--text-muted:#9399a8;--accent:#6f7bff;--accent-text:#fff;--bubble-bot:#1f232c;--bubble-user:#6f7bff;--bubble-user-text:#fff;--online:#34d399;--shadow:0 1px 2px #0006, 0 1px 1px #0000004d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1115;--surface:#171a21;--surface-2:#1f232c;--border:#2a2f3a;--text:#eef0f4;--text-muted:#9399a8;--accent:#6f7bff;--accent-text:#fff;--bubble-bot:#1f232c;--bubble-user:#6f7bff;--bubble-user-text:#fff;--online:#34d399;--shadow:0 1px 2px #0006, 0 1px 1px #0000004d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#app{justify-content:center;height:100dvh;display:flex}.chat{background:var(--bg);flex-direction:column;width:100%;max-width:560px;height:100%;display:flex}.chat__header{background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:12px;padding:12px 16px;display:flex}.chat__avatar{background:var(--accent);width:40px;height:40px;color:var(--accent-text);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:600;display:flex;overflow:hidden}.chat__avatar img{object-fit:cover;width:100%;height:100%}.chat__identity{flex-direction:column;gap:2px;min-width:0;display:flex}.chat__name{align-items:center;gap:6px;font-size:.95rem;font-weight:600;display:flex;overflow:hidden}.chat__name-text{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.chat__logo{opacity:.55;width:16px;height:16px;color:var(--text);flex-shrink:0}.chat__logo svg{width:100%;height:100%;display:block}.chat__status{color:var(--text-muted);align-items:center;gap:6px;font-size:.78rem;display:flex}.chat__status-dot{background:var(--online);border-radius:50%;flex-shrink:0;width:8px;height:8px}.chat__header-actions{flex-shrink:0;gap:6px;margin-left:auto;display:flex}.icon-btn{border:1px solid var(--border);background:var(--surface);width:36px;height:36px;color:var(--text-muted);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;font-size:1rem;line-height:1;transition:background .15s;display:flex}.icon-btn:hover{background:var(--surface-2)}.icon-btn svg{width:18px;height:18px;display:block}.icon-btn[data-lang-toggle]{letter-spacing:.02em;font-size:.72rem;font-weight:600}.icon-btn--pulse{position:relative}.icon-btn--pulse:after{content:"";border:2px solid var(--accent);pointer-events:none;border-radius:50%;animation:1.6s ease-out infinite icon-pulse-ring;position:absolute;inset:0}@keyframes icon-pulse-ring{0%{opacity:.8;transform:scale(1)}to{opacity:0;transform:scale(1.6)}}.chat__practice-badge{background:var(--accent);color:var(--accent-text);letter-spacing:.06em;vertical-align:2px;border-radius:999px;margin-left:6px;padding:1px 7px;font-size:.6rem;font-weight:700;display:inline-block}.chat__messages{-webkit-overflow-scrolling:touch;flex-direction:column;flex:1;gap:10px;padding:16px;display:flex;overflow-y:auto}.msg{flex-direction:column;max-width:82%;display:flex}.msg--bot{align-self:flex-start;align-items:flex-start}.msg--user{align-self:flex-end;align-items:flex-end}.msg__bubble{box-shadow:var(--shadow);white-space:pre-wrap;word-break:break-word;border-radius:16px;padding:10px 14px;font-size:.92rem;line-height:1.45}.msg--bot .msg__bubble{background:var(--bubble-bot);color:var(--text);border-bottom-left-radius:4px}.msg--user .msg__bubble{background:var(--bubble-user);color:var(--bubble-user-text);border-bottom-right-radius:4px}.msg--coach .msg__bubble{background:var(--surface-2);border-left:3px solid var(--accent);border-radius:12px 12px 12px 4px}.msg__coach-label{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:4px;font-size:.68rem;font-weight:700}.msg--typing .msg__bubble{align-items:center;gap:4px;padding:14px;display:flex}.typing-dot{background:var(--text-muted);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite typing-bounce}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{opacity:.5;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.msg__list{flex-direction:column;gap:4px;margin:0;padding-left:1.1em;display:flex}.msg__links{flex-direction:column;gap:6px;display:flex}.msg__link{color:var(--accent);font-weight:500;text-decoration:none}.msg__link:hover{text-decoration:underline}.msg__card{flex-direction:column;gap:6px;display:flex}.msg__card-title{font-weight:600}.msg__card-subtitle{color:var(--text-muted);font-size:.82rem}.msg__card-desc{margin:0}.msg__card-tags{flex-wrap:wrap;gap:6px;display:flex}.tag-pill{background:var(--surface-2);border:1px solid var(--border);color:var(--text-muted);border-radius:999px;padding:2px 10px;font-size:.76rem}.msg__source{flex-wrap:wrap;gap:6px;max-width:100%;margin-top:4px;padding-left:2px;display:flex}.tag-pill--verified{border-color:var(--accent);color:var(--accent);white-space:normal;border-radius:10px;max-width:100%;font-weight:600}button.tag-pill--verified{text-align:left;cursor:pointer;font-family:inherit;transition:background .15s}button.tag-pill--verified:hover{background:var(--surface)}.msg__card-link{color:var(--accent);font-size:.85rem;font-weight:500;text-decoration:none}.msg__card-link:hover{text-decoration:underline}.chat__quick-replies{flex-wrap:wrap;flex-shrink:0;gap:8px;padding:0 16px 12px;display:flex}.chip{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:999px;padding:8px 14px;font-size:.85rem;transition:background .15s,border-color .15s}.chip:hover{background:var(--surface-2);border-color:var(--accent)}.chat__inputbar{background:var(--surface);border-top:1px solid var(--border);flex-shrink:0;align-items:center;gap:8px;padding:10px 12px;display:flex}.chat__input{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:999px;outline:none;flex:1;padding:10px 16px;font-size:.92rem}.chat__input:focus{border-color:var(--accent)}.chat__send{background:var(--accent);width:40px;height:40px;color:var(--accent-text);cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;display:flex}.chat__send:disabled{opacity:.5;cursor:not-allowed}.chat__send svg{width:18px;height:18px}