:root{--bg:#0b0e14;--panel:#151a24;--panel-2:#1b2230;--panel-3:#232b3a;--line:#262d3b;--text:#e7eaf0;--muted:#8b93a7;--accent:#4f7cff;--accent-600:#3d63d6;--robot:#66a3ff;--live:#33d17a;--warn:#e0b64b;--danger:#ff6b6b;--radius:16px;--radius-sm:10px}*{box-sizing:border-box}body,html{height:100%}body{margin:0;background:radial-gradient(1200px 700px at 80% -10%,#16203a 0,var(--bg) 55%);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.app__bar{height:60px;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line);background:rgba(12,15,22,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.app__bar,.app__brand{display:flex;align-items:center}.app__brand{gap:10px;font-weight:650;letter-spacing:.2px}.app__logo{font-size:20px}.app__badge{font-size:12px;color:var(--live);border:1px solid rgba(51,209,122,.35);background:rgba(51,209,122,.08);padding:5px 10px;border-radius:999px}.app__badge:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--live);margin-right:7px;vertical-align:middle;animation:blink 1.6s infinite}.gate{flex:1 1;display:flex;align-items:center;justify-content:center;padding:24px}.gate__card{width:100%;max-width:440px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;display:flex;flex-direction:column;gap:14px;box-shadow:0 24px 60px rgba(0,0,0,.35)}.gate__title{margin:0;font-size:22px}.gate__sub{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}.field{display:flex;flex-direction:column;gap:6px}.field__label{font-size:13px;color:var(--muted)}.field__input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--text);padding:11px 13px;font-size:14.5px;transition:border-color .15s,box-shadow .15s}.field__input::placeholder{color:#5c6577}.field__input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,124,255,.18)}.field__input:disabled{opacity:.6}.gate__submit{margin-top:4px;width:100%}.gate__error{margin:0;color:var(--danger);font-size:13.5px}.gate__hint{margin:2px 0 0;color:var(--muted);font-size:12.5px;text-align:center}.gate__hint code{background:var(--panel-3);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:12px}.room{flex:1 1;display:grid;grid-template-columns:380px 1fr;grid-gap:20px;gap:20px;padding:20px;max-width:1240px;width:100%;margin:0 auto;min-height:0}.video-col{display:flex;flex-direction:column;gap:12px;min-height:0}.panel{position:relative;aspect-ratio:4/3;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);overflow:hidden}.panel__video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1);background:#0a0d13}.panel__overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;padding:16px;text-align:center}.panel__overlay--error{color:var(--danger)}.panel__tag{position:absolute;left:10px;bottom:10px;display:flex;align-items:center;gap:8px;font-size:12px;color:#dfe4ee;background:rgba(8,11,17,.6);border:1px solid hsla(0,0%,100%,.08);padding:5px 10px;border-radius:999px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.live-dot,.speaking-dot{width:8px;height:8px;border-radius:50%}.live-dot{background:var(--live);animation:pulse-green 1.4s infinite}.speaking-dot{background:var(--robot);animation:pulse-blue 1.1s infinite}.panel--robot{display:flex;align-items:center;justify-content:center;background:radial-gradient(120% 120% at 50% 20%,rgba(79,124,255,.1),rgba(79,124,255,0) 60%),var(--panel);transition:box-shadow .25s ease,border-color .25s ease}.panel--robot.is-speaking{border-color:rgba(102,163,255,.55);box-shadow:0 0 0 2px rgba(102,163,255,.35),0 0 46px 6px rgba(102,163,255,.35)}.robot{width:44%;height:auto;color:var(--muted);transition:color .2s,filter .2s,transform .2s}.panel--robot.is-speaking .robot{color:var(--robot);filter:drop-shadow(0 0 16px rgba(102,163,255,.85));animation:robotPulse 1.1s ease-in-out infinite}.mic-bar{display:flex}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--panel-2);color:var(--text);border-radius:var(--radius-sm);padding:11px 14px;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:10px;justify-content:center;font-weight:550;transition:background .15s,border-color .15s,transform .05s}.btn:hover{background:var(--panel-3)}.btn:active{transform:translateY(1px)}.btn:disabled{cursor:not-allowed;opacity:.75}.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-600)}.mic-btn{width:100%}.mic-btn--on{border-color:rgba(79,124,255,.45);color:var(--text)}.mic-btn--muted{color:var(--muted)}.mic-btn svg{flex:none}.chat{display:flex;flex-direction:column;min-height:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.chat__header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}.chat__title{font-weight:650}.chat__status{font-size:12.5px;color:var(--muted)}.chat__status--listening{color:var(--live)}.chat__status--ai-speaking{color:var(--robot)}.chat__status--processing{color:var(--warn)}.chat__body{flex:1 1;overflow-y:auto;padding:18px;gap:12px}.chat__body,.chat__intro{display:flex;flex-direction:column}.chat__intro{margin:auto;max-width:440px;text-align:center;color:var(--muted);gap:14px;align-items:center}.chat__intro h2{margin:0;color:var(--text);font-size:22px}.chat__intro p{margin:0;line-height:1.55;font-size:14.5px}.chat__warn{color:var(--warn)}.bubble{max-width:82%;padding:11px 14px;border-radius:14px;line-height:1.5;font-size:14.5px;white-space:pre-wrap;word-break:break-word;animation:bubbleIn .18s ease}.bubble--assistant{align-self:flex-start;background:var(--panel-2);border:1px solid var(--line);border-bottom-left-radius:4px}.bubble--user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.bubble--live{opacity:.7;border-style:dashed}.dots{display:inline-flex;gap:5px;padding:3px 0;color:var(--muted)}.dots i{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.5;animation:dot 1.2s infinite}.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}.chat__error{align-self:center;color:var(--danger);font-size:13px;text-align:center}@keyframes pulse-green{0%{box-shadow:0 0 0 0 rgba(51,209,122,.5)}70%{box-shadow:0 0 0 7px rgba(51,209,122,0)}to{box-shadow:0 0 0 0 rgba(51,209,122,0)}}@keyframes pulse-blue{0%{box-shadow:0 0 0 0 rgba(102,163,255,.5)}70%{box-shadow:0 0 0 7px rgba(102,163,255,0)}to{box-shadow:0 0 0 0 rgba(102,163,255,0)}}@keyframes robotPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes dot{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}@keyframes bubbleIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes blink{0%,to{opacity:1}50%{opacity:.35}}@media (max-width:880px){.room{grid-template-columns:1fr}.video-col{flex-flow:row wrap}.panel{flex:1 1 240px}.mic-bar{order:3;flex-basis:100%}.chat{min-height:60vh}}