:root{color-scheme:dark;--bg:#000;--panel:#0b0b0b;--panel2:#111;--line:#242424;--text:#f5f5f5;--muted:#999;--accent:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.app{height:100vh;display:grid;grid-template-columns:270px 1fr;overflow:hidden}.sidebar{border-right:1px solid var(--line);padding:18px;display:flex;flex-direction:column;gap:12px;background:#050505}.brand{font-weight:800;font-size:18px}.new-btn,.auth-btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:12px;padding:11px}.history{overflow:auto;display:flex;flex-direction:column;gap:6px}.history button{background:transparent;border:0;color:#bbb;text-align:left;padding:10px;border-radius:9px}.history button:hover{background:#151515;color:#fff}.main{display:flex;flex-direction:column;min-width:0}.topbar{height:62px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px}.status{color:var(--muted);font-size:13px}.chat{flex:1;overflow:auto;padding:30px 8%;display:flex;flex-direction:column;gap:22px}.welcome{text-align:center;margin:auto;color:var(--muted)}.welcome h1{color:#fff;font-size:30px}.avatar{width:92px;height:92px;border-radius:50%;margin:0 auto 14px;background:radial-gradient(circle at 35% 30%,#fff 0 4%,#aaa 5% 12%,#333 13% 55%,#111 56%);box-shadow:0 0 0 1px #333,0 15px 40px #000}.avatar.listening{animation:pulse 1s infinite}.avatar.thinking{animation:think 1.2s infinite}.avatar.speaking{animation:speak .45s infinite alternate}@keyframes pulse{50%{transform:scale(1.08);box-shadow:0 0 0 10px #222}}@keyframes think{50%{filter:brightness(1.7);transform:translateY(-3px)}}@keyframes speak{to{transform:scale(1.04)}}.msg{max-width:850px;width:fit-content;padding:13px 16px;border:1px solid var(--line);border-radius:16px;line-height:1.55;white-space:pre-wrap}.msg.user{align-self:flex-end;background:#f5f5f5;color:#000;border-color:#f5f5f5}.msg.assistant{align-self:flex-start;background:#0d0d0d}.composer{border-top:1px solid var(--line);padding:16px 8%;display:flex;gap:10px}.composer input{flex:1;background:#0e0e0e;border:1px solid var(--line);color:#fff;border-radius:16px;padding:14px 16px;outline:none}.icon-btn{width:50px;border:1px solid var(--line);background:#101010;color:#fff;border-radius:14px}.icon-btn.recording{background:#4a0000}.send{background:#fff;color:#000}.auth{min-height:100vh;display:grid;place-items:center;padding:20px}.card{width:min(420px,100%);background:#0a0a0a;border:1px solid var(--line);border-radius:20px;padding:28px}.card h1{margin-top:0}.card input{width:100%;margin:7px 0;background:#111;border:1px solid #292929;color:#fff;padding:12px;border-radius:10px}.card button{width:100%;margin-top:10px}.switch{margin-top:14px;color:var(--muted);font-size:14px}.link{color:#fff;text-decoration:underline;cursor:pointer}.drawer{position:fixed;right:18px;bottom:90px;width:min(360px,calc(100% - 36px));background:#0b0b0b;border:1px solid #333;border-radius:16px;padding:16px;z-index:5}.drawer label{display:block;margin:10px 0 4px;color:#aaa}.drawer select,.drawer input{width:100%;background:#111;color:#fff;border:1px solid #333;padding:9px;border-radius:8px}.small{font-size:12px;color:#777}@media(max-width:800px){.app{grid-template-columns:1fr}.sidebar{display:none}.chat{padding:22px 14px}.composer{padding:12px 14px}.topbar{padding:0 14px}}

.assistant-stage{padding:20px 20px 6px;text-align:center;border-bottom:1px solid var(--line);background:radial-gradient(circle at 50% 20%,#151515 0,#050505 45%,#000 100%)}
.assistant-avatar{height:150px;display:grid;place-items:center}.avatar{width:120px;height:120px;margin:0 auto;position:relative;border-radius:50%;background:#0d0d0d;box-shadow:0 0 0 1px #333,0 18px 45px rgba(0,0,0,.7);transition:transform .2s,filter .2s,box-shadow .2s}.avatar-svg{display:block;width:100%;height:100%}.avatar.listening{animation:pulse 1s infinite}.avatar.thinking{animation:think 1.2s infinite}.avatar.speaking{animation:speak .45s infinite alternate;box-shadow:0 0 0 2px #777,0 0 35px rgba(255,255,255,.18)}.avatar-caption{display:flex;flex-direction:column;gap:3px;font-size:13px;color:#aaa}.avatar-caption strong{color:#fff}.chat{padding-top:24px}.msg{display:flex;align-items:flex-end;gap:10px}.msg>div:first-child{flex:1}.speak-btn{flex:0 0 auto;width:34px;height:34px;border:1px solid #333;background:#171717;color:#fff;border-radius:10px;cursor:pointer}.speak-btn:hover{background:#252525}.composer input:disabled{opacity:.5}.drawer{box-shadow:0 20px 60px #000}

/* Persistent assistant/avatar area: the avatar must remain visible while chatting. */
.avatar.idle{animation:none}.assistant-stage{min-height:175px}.assistant-stage .avatar{flex:none}.avatar-caption span{transition:opacity .2s}.speak-btn{font-size:16px}.speak-btn:focus-visible,.icon-btn:focus-visible,.new-btn:focus-visible{outline:2px solid #fff;outline-offset:2px}

.voice-mode{height:42px;padding:0 11px;border:1px solid #333;background:#101010;color:#fff;border-radius:12px;white-space:nowrap;font-size:12px}.voice-mode.active{background:#1c1c1c;border-color:#666}.live-btn.recording{background:#4a0000;box-shadow:0 0 0 2px #4a0000}.live-btn{font-size:18px}@media(max-width:600px){.voice-mode{padding:0 8px;font-size:11px}.icon-btn{width:46px}}


/* 3D-cartoon avatar */
.avatar{
  background:radial-gradient(circle at 35% 20%,#fff 0 2%,#1b1d22 3% 100%);
  overflow:hidden;
  box-shadow:0 12px 38px rgba(0,0,0,.55),0 0 0 1px #30343a;
}
.avatar-svg{width:100%;height:100%;display:block;filter:drop-shadow(0 8px 8px rgba(0,0,0,.28))}
.assistant-avatar{height:175px}
.avatar-preview{display:grid;place-items:center;height:145px;margin:10px 0 6px}
.avatar-preview .avatar{width:125px;height:125px}
.drawer{max-height:calc(100vh - 120px);overflow:auto}
.drawer .auth-btn,.drawer .new-btn{margin-top:10px}
.drawer strong{font-size:16px}
.drawer select,.drawer input{margin-bottom:3px}

textarea{width:100%;background:#0e0e0e;border:1px solid var(--line);color:#fff;border-radius:12px;padding:10px;resize:vertical}.side-tools{display:flex;flex-direction:column;gap:8px;overflow:auto}.top-title{display:flex;align-items:center;gap:10px}.mobile-menu{display:none;border:1px solid var(--line);background:#111;color:#fff;border-radius:9px;padding:7px 10px}.check{display:flex!important;align-items:center;gap:8px}.check input{width:auto!important;margin:0}.memory-list{display:flex;flex-direction:column;gap:8px;margin:12px 0}.memory-item{border:1px solid #292929;background:#111;border-radius:10px;padding:10px;display:flex;justify-content:space-between;gap:8px;align-items:flex-start}.memory-item div{display:flex;flex-direction:column;gap:4px;min-width:0}.memory-item span{color:#888;font-size:11px}@media(max-width:800px){.sidebar{position:fixed;left:-290px;top:0;bottom:0;width:270px;z-index:20;transition:left .2s;box-shadow:20px 0 60px rgba(0,0,0,.65)}.sidebar.mobile-open{left:0}.mobile-menu{display:inline-block}.composer{padding:10px}.drawer{right:8px;left:8px;width:auto;bottom:72px;max-height:calc(100dvh - 90px)}}@media(max-width:420px){.composer .voice-mode{display:none}}