:root{--ink: #16141f;--ink-soft: #6b6578;--brand: #ff0000;--brand-deep: #c40000;--brand-soft: #ffebeb;--accent: #ff0000;--mist: #fff5f5;--foam: #fffcfc;--surface: rgba(255, 255, 255, .72);--surface-strong: rgba(255, 255, 255, .92);--line: rgba(22, 20, 31, .08);--shadow: 0 18px 50px rgba(196, 0, 0, .1);--radius: 22px;--font-display: "Segoe UI", "Helvetica Neue", sans-serif;--font-serif: "Georgia", "Iowan Old Style", "Palatino Linotype", serif;--font-body: "Segoe UI", "Helvetica Neue", sans-serif;--sidebar-w: 268px;--sidebar-collapsed-w: 76px;--avatar-w: min(280px, 30vw)}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100%;min-height:100dvh;color:var(--ink);font-family:var(--font-body);background:radial-gradient(900px 520px at 88% 12%,rgba(255,80,80,.22) 0%,transparent 58%),radial-gradient(700px 480px at 8% 0%,rgba(255,220,220,.55) 0%,transparent 50%),radial-gradient(800px 500px at 70% 100%,rgba(255,150,150,.16) 0%,transparent 55%),linear-gradient(165deg,#fffcfc,#fff5f5 42%,#fff8f8);background-attachment:scroll;-webkit-text-size-adjust:100%;text-size-adjust:100%}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.app-shell{min-height:100vh;min-height:100dvh;max-height:100vh;max-height:100dvh;height:100dvh;display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);grid-template-rows:minmax(0,1fr);overflow:hidden;transition:grid-template-columns .22s ease;overscroll-behavior:none}.app-shell.sidebar-collapsed{grid-template-columns:var(--sidebar-collapsed-w) minmax(0,1fr)}.nav-backdrop,.mobile-nav-btn{display:none}.sidebar{padding:1.15rem 1rem 1rem;border-right:1px solid var(--line);background:#ffffff8c;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);display:flex;flex-direction:column;gap:.85rem;min-height:0;overflow:hidden}.sidebar.collapsed{padding:1rem .7rem;align-items:center}.sidebar.collapsed .brand-row{flex-direction:column;padding:0;gap:.45rem}.sidebar.collapsed .brand-logo{width:52px;height:36px;object-fit:cover;object-position:left center}.sidebar.collapsed .sidebar-label,.sidebar.collapsed .side-search input,.sidebar.collapsed .history-block{display:none}.sidebar.collapsed .sidebar-toggle{margin-left:0}.sidebar.collapsed .new-chat-btn{width:44px;height:44px;padding:0;border-radius:12px;font-size:1.2rem}.sidebar.collapsed .side-search,.sidebar.collapsed .side-nav-item{width:44px;height:44px;padding:0;justify-content:center}.brand-row{display:flex;align-items:center;gap:.7rem;padding:.2rem .35rem;animation:rise .55s ease both}.brand-row h1{margin:0;font-family:var(--font-display);font-size:1.15rem;font-weight:700;letter-spacing:-.03em;flex:1;min-width:0}.sidebar-toggle{margin-left:auto;width:32px;height:32px;border:none;border-radius:9px;background:transparent;color:var(--ink-soft);cursor:pointer;display:grid;place-items:center;flex-shrink:0;pointer-events:auto}.sidebar-toggle:hover{background:#ff00001a;color:var(--brand-deep)}.brand-logo{display:block;width:auto;height:42px;flex:1;min-width:0;object-fit:contain;object-position:left center}.brand-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:.78rem;letter-spacing:-.04em;background:linear-gradient(145deg,#ff4d4d,#c40000);box-shadow:0 8px 20px #c4000052;flex-shrink:0}.new-chat-btn{display:flex;align-items:center;justify-content:center;gap:.45rem;width:100%;padding:.78rem 1rem;border:none;border-radius:14px;background:#16141f;color:#fff;font-weight:650;font-size:.92rem;cursor:pointer;transition:transform .15s ease,opacity .15s ease}.new-chat-btn:hover{transform:translateY(-1px);opacity:.92}.side-search{display:flex;align-items:center;gap:.55rem;padding:.65rem .8rem;border-radius:12px;background:#ff00000f;border:1px solid transparent;color:var(--ink-soft);font-size:.86rem}.side-search input{flex:1;border:none;background:transparent;outline:none;color:var(--ink);min-width:0;font-size:1rem}.side-search input::placeholder{color:var(--ink-soft)}.side-nav{display:flex;flex-direction:column;gap:.2rem;opacity:.52}.side-nav-item{display:flex;align-items:center;gap:.65rem;width:100%;padding:.62rem .75rem;border-radius:11px;color:var(--ink-soft);font-size:.9rem;font-weight:550;pointer-events:none;cursor:default}.side-nav-item svg{flex-shrink:0;opacity:.45;color:var(--ink-soft)}.history-block{flex:1;min-height:0;overflow-y:auto;padding-top:.35rem}.history-label{margin:0 0 .45rem .55rem;font-size:.72rem;font-weight:650;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft)}.history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.15rem}.history-list button{width:100%;border:none;background:transparent;text-align:left;padding:.55rem .7rem;border-radius:10px;color:var(--ink-soft);font-size:.84rem;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-list button:hover:not(:disabled){background:#ff000012;color:var(--ink)}.history-list button.active{background:#ff00001a;color:var(--ink)}.user-footer{display:flex;align-items:center;gap:.7rem;padding:.35rem .4rem;border-radius:16px;background:#ffffffdb;border:1px solid var(--line);box-shadow:0 8px 22px #c400000f;max-width:min(380px,100%);min-width:0;flex-shrink:1}.user-avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#ff6b6b,#c40000);color:#fff;font-weight:700;font-size:.74rem;letter-spacing:.02em;flex-shrink:0;box-shadow:0 0 0 2px #fff,0 0 0 3.5px #ff000059}.user-footer-meta{flex:1;min-width:0}.user-footer-meta strong{display:block;font-size:.88rem;font-weight:700;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-footer-meta span{display:block;margin-top:.08rem;font-size:.72rem;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-id-badge{flex-shrink:0;padding:.18rem .5rem;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);font-size:.68rem;font-weight:700;letter-spacing:.02em}.signout-btn{flex-shrink:0;display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .7rem .4rem .55rem;border:none;border-radius:11px;background:transparent;color:var(--ink-soft);font-size:.75rem;font-weight:650;cursor:pointer;transition:background .15s ease,color .15s ease}.signout-btn:hover{background:#b4231814;color:#b42318}.signout-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.ghost-btn{border:none;background:transparent;color:var(--ink-soft);cursor:pointer;padding:.4rem;border-radius:8px;display:grid;place-items:center;transition:background .15s ease,color .15s ease}.ghost-btn:hover{background:#ff00001a;color:var(--brand-deep)}.main{display:flex;flex-direction:column;min-height:0;min-width:0;height:100%;max-height:100%;position:relative;overflow:hidden}.chat-header{padding:.85rem 1.35rem;padding-top:max(.85rem,env(safe-area-inset-top));display:flex;align-items:center;justify-content:space-between;gap:.75rem;z-index:2;min-width:0;flex-shrink:0}.chat-header-title{display:flex;align-items:center;gap:.45rem;font-weight:650;font-size:.95rem;min-width:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header-title span{color:var(--ink-soft);font-weight:500;font-size:.82rem}.status-pill{display:inline-flex;align-items:center;gap:.45rem;padding:.35rem .75rem;border-radius:999px;background:#ff00001a;color:var(--brand-deep);font-size:.78rem;font-weight:600}.status-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px #22c55e2e}.chat-body{flex:1 1 0;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) var(--avatar-w);grid-template-rows:minmax(0,1fr);gap:0;position:relative;overflow:hidden}.messages{flex:1 1 0;overflow-y:auto;overflow-x:hidden;padding:.5rem 1.5rem 1rem;display:flex;flex-direction:column;gap:1rem;min-height:0;z-index:1;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.chat-column{min-width:0;min-height:0;height:100%;max-height:100%;overflow:hidden;display:flex;flex-direction:column}.empty-state{margin:auto;width:min(560px,100%);max-width:560px;text-align:left;padding:1rem .5rem 2rem;animation:floatIn .75s ease both}.empty-state .hello{margin:0 0 .35rem;color:var(--brand);font-weight:650;font-size:1.05rem}.empty-state h2{font-family:var(--font-serif);font-size:clamp(1.85rem,3.2vw,2.55rem);margin:0 0 .7rem;letter-spacing:-.015em;line-height:1.2;font-weight:600}.empty-state p{margin:0 0 1.25rem;color:var(--ink-soft);line-height:1.55;max-width:42ch}.quick-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem}.quick-card{border:1px solid var(--line);background:#ffffffa6;border-radius:16px;padding:.9rem .95rem;text-align:left;cursor:pointer;transition:border-color .15s ease,transform .15s ease,background .15s ease}.quick-card:hover{border-color:#ff000059;background:#fff;transform:translateY(-1px)}.quick-card strong{display:block;font-size:.88rem;margin-bottom:.25rem}.quick-card span{display:block;font-size:.78rem;color:var(--ink-soft);line-height:1.35}.message-row{display:flex;animation:rise .35s ease both}.message-row.user{justify-content:flex-end}.bubble{max-width:min(640px,92%);padding:.95rem 1.1rem;border-radius:18px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.message-row.user .bubble{background:linear-gradient(145deg,red,#c40000);color:#fff;border-bottom-right-radius:6px}.message-row.assistant .bubble{background:var(--surface-strong);border:1px solid var(--line);box-shadow:0 10px 30px #c400000f;border-bottom-left-radius:6px}.bubble :is(p,ul,ol){margin:0 0 .65rem}.bubble :is(p,ul,ol):last-child{margin-bottom:0}.sources{margin-top:.75rem;display:flex;flex-direction:column;gap:.45rem}.sources-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);font-weight:600}.source-chip{font-size:.78rem;padding:.3rem .55rem;border-radius:8px;background:#ff000014;color:var(--brand-deep);border:1px solid rgba(255,0,0,.15)}.source-download{display:flex;align-items:center;justify-content:space-between;gap:.75rem;width:100%;text-align:left;cursor:pointer;padding:.55rem .7rem;transition:background .15s ease,border-color .15s ease,transform .15s ease}.source-download:hover:not(:disabled){background:#ff00001f;border-color:#ff000059;transform:translateY(-1px)}.source-download:disabled{opacity:.7;cursor:wait}.source-name{flex:1;min-width:0;overflow-wrap:anywhere}.source-action{flex-shrink:0;font-weight:650;color:var(--brand);text-decoration:underline;text-underline-offset:2px}.meta-row{margin-top:.7rem;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}.feedback-btn{border:none;cursor:pointer;background:#16141f0d;border-radius:999px;padding:.25rem .55rem;font-size:.8rem;transition:transform .15s ease,background .15s ease}.feedback-btn:hover{transform:translateY(-1px)}.feedback-btn.active-up{background:#19a46326}.feedback-btn.active-down{background:#e4572e26}.escalation{margin-top:.55rem;font-size:.82rem;color:#c2410c;font-weight:600}.avatar-panel{position:relative;padding:1.25rem 1.1rem 1.15rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.65rem;min-height:0;height:100%;border:none;background:transparent;overflow:hidden;pointer-events:none}.avatar-open-btn{pointer-events:auto;position:relative;z-index:2;display:inline-block;border:0;border-radius:999px;padding:.4rem .9rem;font-size:.78rem;font-weight:600;color:#fff;background:var(--brand);cursor:pointer;text-decoration:none;text-align:center}.avatar-panel:before{content:"";position:absolute;top:8%;right:-8%;bottom:12%;left:-8%;background:radial-gradient(ellipse 70% 60% at 50% 42%,rgba(255,80,80,.32) 0%,transparent 72%);filter:blur(10px);z-index:0}.avatar-panel-label{position:relative;z-index:2;font-size:.78rem;font-weight:650;color:var(--brand-deep);letter-spacing:.02em;opacity:.85}.avatar-stage{position:relative;z-index:1;width:min(100%,240px);aspect-ratio:3 / 4;max-height:min(58vh,380px);flex:0 1 auto}.avatar-stage.speaking .avatar-face{animation:avatarSpeakPulse 1.5s ease-in-out infinite}.avatar-glow{display:none}.avatar-face{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:28px;overflow:hidden;background:linear-gradient(180deg,#ffe0e0,#fff5f5);box-shadow:0 16px 36px #c4000029,0 0 0 1px #ff00001f}.avatar-video{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;opacity:0;pointer-events:none}.avatar-face.live .avatar-video{opacity:1}.avatar-face.live .avatar-photo{opacity:0;pointer-events:none}.avatar-video video{width:100%;height:100%;object-fit:cover;object-position:center 14%;display:block}.avatar-video audio{display:none}.avatar-photo{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;width:100%;height:100%;object-fit:cover;object-position:center 12%;display:block}.avatar-face.loading:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;background:linear-gradient(110deg,transparent 25%,rgba(255,255,255,.45) 45%,transparent 65%);background-size:220% 100%;animation:avatarShimmer 1.4s ease-in-out infinite}@keyframes avatarShimmer{0%{background-position:120% 0}to{background-position:-120% 0}}.avatar-status{position:relative;z-index:2;font-size:.78rem;color:var(--ink-soft);min-height:1.1rem;text-align:center}.avatar-status.speaking{color:var(--brand-deep);font-weight:600}.composer{padding:.65rem 1.5rem max(1.35rem,env(safe-area-inset-bottom));background:transparent;z-index:2;width:100%;flex-shrink:0}.voice-status{margin:0 0 .55rem;font-size:.8rem;color:var(--ink-soft);min-height:1.05rem}.composer-shell{width:100%;min-width:0;border-radius:22px;border:1px solid var(--line);background:#ffffffd1;box-shadow:0 16px 40px #c4000014;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:.55rem .65rem .55rem 1rem;display:flex;align-items:flex-end;gap:.55rem;transition:border-color .15s ease,box-shadow .15s ease}.composer-shell:focus-within{border-color:#f006;box-shadow:0 16px 40px #c400001f,0 0 0 4px #ff00001a}.composer-shell textarea{flex:1;resize:none;min-width:0;min-height:44px;max-height:140px;padding:.65rem .2rem;border:none;background:transparent;outline:none;line-height:1.45;color:var(--ink);font-size:1rem}.composer-actions{display:flex;align-items:center;gap:.4rem;flex-shrink:0;padding-bottom:.1rem}.icon-btn{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--brand-soft);border:none;color:var(--brand-deep);cursor:pointer;transition:transform .15s ease,background .15s ease}.icon-btn:hover{transform:translateY(-1px);background:#ffe0e0}.icon-btn.listening{background:#e4572e24;color:#c2410c;animation:pulse 1.2s ease infinite}.icon-btn.speaking{background:#ff00002e;color:var(--brand-deep)}.primary-btn{height:42px;padding:0 1.05rem;border:none;border-radius:999px;background:linear-gradient(145deg,red,#c40000);color:#fff;font-weight:650;cursor:pointer;box-shadow:0 8px 20px #c4000047;transition:transform .15s ease,opacity .15s ease}.primary-btn:hover{transform:translateY(-1px)}.primary-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.login-screen{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:max(1.5rem,env(safe-area-inset-top)) max(1.5rem,env(safe-area-inset-right)) max(1.5rem,env(safe-area-inset-bottom)) max(1.5rem,env(safe-area-inset-left))}.login-card{width:min(420px,100%);padding:2rem;border-radius:28px;background:#ffffffdb;border:1px solid var(--line);box-shadow:var(--shadow);animation:floatIn .7s ease both}.login-card .brand-logo{width:min(240px,100%);height:auto;margin:0 auto .35rem}.login-card h1{font-family:var(--font-display);font-size:2.1rem;margin:.85rem 0 .4rem;letter-spacing:-.03em}.login-card p{color:var(--ink-soft);margin:0 0 1.4rem;line-height:1.5}.login-card label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem}.login-card select{width:100%;margin-bottom:1rem;padding:.85rem .95rem;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:1rem}.login-card .primary-btn{width:100%;height:48px;border-radius:14px}.typing{display:inline-flex;gap:.3rem;align-items:center}.typing span{width:7px;height:7px;border-radius:50%;background:var(--brand);animation:blink 1.2s infinite ease-in-out}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes floatIn{0%{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes pulse{0%,to{box-shadow:0 0 #c2410c40}50%{box-shadow:0 0 0 8px #c2410c00}}@keyframes blink{0%,80%,to{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}@keyframes mistDrift{0%{transform:translateZ(0) scale(1)}to{transform:translate3d(-2%,2%,0) scale(1.04)}}@keyframes avatarSpeakPulse{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}@media(max-width:1200px){:root{--avatar-w: min(240px, 28vw)}.quick-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:960px){.app-shell,.app-shell.sidebar-collapsed{grid-template-columns:minmax(0,1fr)}.mobile-nav-btn{display:grid;place-items:center;width:40px;height:40px;flex-shrink:0;border:none;border-radius:11px;background:#ffffffb8;border:1px solid var(--line);color:var(--ink);cursor:pointer}.nav-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;border:none;padding:0;background:#16141f61;opacity:0;pointer-events:none;transition:opacity .2s ease}.app-shell.nav-open .nav-backdrop{opacity:1;pointer-events:auto}.sidebar,.sidebar.collapsed{position:fixed;top:0;left:0;bottom:0;z-index:40;width:min(300px,88vw);padding:1.15rem 1rem max(1rem,env(safe-area-inset-bottom));padding-top:max(1.15rem,env(safe-area-inset-top));align-items:stretch;border-right:1px solid var(--line);border-bottom:none;background:#fffffff0;box-shadow:16px 0 40px #16141f1f;transform:translate(-108%);transition:transform .22s ease}.app-shell.nav-open .sidebar,.app-shell.nav-open .sidebar.collapsed{transform:translate(0)}.sidebar.collapsed .brand-row{flex-direction:row;padding:.2rem .35rem;gap:.7rem}.sidebar.collapsed .brand-logo{width:auto;height:42px;object-fit:contain;object-position:left center}.sidebar.collapsed .sidebar-label,.sidebar.collapsed .side-search input,.sidebar.collapsed .history-block{display:unset}.sidebar.collapsed .history-block{display:block}.sidebar.collapsed .sidebar-toggle{margin-left:auto}.sidebar.collapsed .new-chat-btn{width:100%;height:auto;padding:.78rem 1rem;border-radius:14px;font-size:.92rem}.sidebar.collapsed .side-search{width:auto;height:auto;padding:.65rem .8rem;justify-content:flex-start}.sidebar.collapsed .side-nav-item{width:100%;height:auto;padding:.62rem .75rem;justify-content:flex-start}.chat-body{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}.avatar-panel{position:absolute;top:.45rem;right:.85rem;width:auto;height:auto;padding:0;gap:0;z-index:3}.avatar-panel:before,.avatar-panel-label,.avatar-status{display:none}.avatar-stage{width:64px;height:80px;max-height:80px;aspect-ratio:4 / 5}.avatar-face{border-radius:16px}.empty-state{padding-right:5.25rem}.chat-header{padding:.7rem .9rem;padding-top:max(.7rem,env(safe-area-inset-top))}.chat-header-title span,.user-id-badge,.signout-btn span{display:none}.user-footer{max-width:min(220px,52vw);gap:.45rem;padding:.28rem .28rem .28rem .32rem}.signout-btn{border-radius:10px;padding:.4rem}.messages{padding:.5rem .9rem 1rem}.composer{padding:.5rem .9rem max(.9rem,env(safe-area-inset-bottom))}.login-card{padding:1.5rem 1.25rem}.login-card h1{font-size:clamp(1.55rem,7vw,2.1rem)}}@media(max-width:720px){.quick-cards{grid-template-columns:1fr}.empty-state{padding:.5rem 5rem 1.25rem 0}.empty-state h2{font-size:clamp(1.45rem,7vw,2rem)}.empty-state p{max-width:none}.bubble{max-width:100%;padding:.8rem .9rem}.composer-shell{padding:.45rem .5rem .45rem .75rem;border-radius:18px}.primary-btn{padding:0 .85rem}}@media(max-width:480px){.chat-header-title{font-size:.88rem}.user-footer-meta{display:none}.user-footer{max-width:none;background:transparent;border:none;box-shadow:none;padding:0;gap:.25rem}.avatar-stage{width:52px;height:66px;max-height:66px}.empty-state{padding-right:4.25rem}.composer-shell{flex-wrap:wrap}.composer-shell textarea{flex:1 1 100%;min-height:40px;padding:.45rem .15rem}.composer-actions{width:100%;justify-content:flex-end}.login-screen{padding:1rem}.login-card{padding:1.25rem 1rem 1.4rem;border-radius:22px}.source-download{flex-wrap:wrap;gap:.35rem}}@media(max-height:640px)and (max-width:960px){.avatar-panel{display:none}.empty-state{padding-right:.25rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}