:root{
  --bg:#0a0b0d; --side:#0e1013; --surface:#14171b; --surface2:#1a1e23; --line:#22272e; --line2:#2c323a;
  --text:#e9ecef; --soft:#b9c0c8; --muted:#7c858f; --ice:#a8e6ff; --ice-strong:#6fd3ff; --ice-dim:rgba(168,230,255,.1);
  --danger:#ff8a8a; --radius:14px;
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:"Geist",system-ui,sans-serif;font-size:15px;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
a{color:var(--ice)}
.app{display:flex;height:100dvh;overflow:hidden}

/* sidebar */
.sidebar{width:272px;flex-shrink:0;background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:calc(14px + var(--safe-t)) 12px calc(12px + var(--safe-b))}
.side-top{display:flex;flex-direction:column;gap:10px}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 10px}
.logo{width:30px;height:30px;border-radius:9px;background:var(--text);color:var(--bg);display:grid;place-items:center;font:700 16px "Geist";letter-spacing:-.5px}
.brand-text{display:flex;gap:6px;align-items:baseline;flex:1}
.brand-text b{font-weight:700;letter-spacing:2.5px;font-size:14px}
.brand-text span{font:500 11px "Geist Mono";color:var(--ice);letter-spacing:1px}
.new-chat{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:11px;background:var(--surface);border:1px solid var(--line);font-weight:500;transition:.15s}
.new-chat:hover{border-color:var(--line2);background:var(--surface2)}
.new-chat kbd{margin-left:auto;font:11px "Geist Mono";color:var(--muted);border:1px solid var(--line2);border-radius:6px;padding:2px 6px}
.search{display:flex;align-items:center;gap:8px;padding:0 12px;border-radius:11px;color:var(--muted);border:1px solid transparent}
.search:focus-within{border-color:var(--line2);background:var(--surface)}
.search input{flex:1;border:0;outline:0;background:none;padding:10px 0;font-size:14px;color:var(--text)}
.search input::placeholder{color:var(--muted)}
.history{flex:1;overflow-y:auto;margin:10px -4px;padding:0 4px;scrollbar-width:thin}
.group-label{font:500 10.5px "Geist Mono";letter-spacing:1.2px;color:var(--muted);padding:14px 10px 6px;text-transform:uppercase}
.chat-item{position:relative;display:flex;align-items:center;border-radius:10px;color:var(--soft)}
.chat-item:hover{background:var(--surface)}
.chat-item.active{background:var(--surface2);color:var(--text)}
.chat-item.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--ice)}
.chat-open{flex:1;min-width:0;text-align:left;padding:10px 6px 10px 12px;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-rename{flex:1;min-width:0;margin:4px;padding:6px 8px;border-radius:8px;border:1px solid var(--ice-strong);background:var(--bg);outline:0;font-size:14px}
.chat-more{opacity:0;padding:8px;color:var(--muted);border-radius:8px}
.chat-item:hover .chat-more,.chat-item.active .chat-more{opacity:1}
.chat-more:hover{color:var(--text)}
.menu{position:absolute;right:4px;top:38px;z-index:20;background:var(--surface2);border:1px solid var(--line2);border-radius:12px;padding:5px;min-width:150px;box-shadow:0 18px 40px rgba(0,0,0,.5)}
.menu button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--soft)}
.menu button:hover{background:var(--surface);color:var(--text)}
.menu button.danger{color:var(--danger)}
.empty-history{color:var(--muted);font-size:13px;padding:16px 10px}
.side-bottom{border-top:1px solid var(--line);padding-top:10px;display:flex;flex-direction:column;gap:2px}
.side-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--soft);font-size:14px;text-align:left}
.side-item:hover{background:var(--surface);color:var(--text)}
.credit{display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center;margin-top:6px;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--muted);font-size:12.5px}
.credit:hover{background:var(--surface)}
.credit b{color:var(--soft);font-weight:500}
.credit-dot{width:7px;height:7px;border-radius:50%;background:var(--ice);box-shadow:0 0 10px var(--ice-strong);grid-row:span 2}
.credit-handle{font:11px "Geist Mono";color:var(--ice)}

/* main */
.main{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}
.topbar{height:calc(56px + var(--safe-t));padding:var(--safe-t) 16px 0;display:flex;align-items:center;gap:10px;border-bottom:1px solid transparent}
.topbar.scrolled{border-bottom-color:var(--line);background:rgba(10,11,13,.85);backdrop-filter:blur(12px)}
.title{flex:1;font-weight:500;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--soft)}
.top-actions{display:flex;gap:6px;align-items:center}
.icon-btn{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;color:var(--soft)}
.icon-btn:hover{background:var(--surface);color:var(--text)}
.chip-toggle{display:flex;align-items:center;gap:7px;height:34px;padding:0 12px;border-radius:999px;border:1px solid var(--line2);color:var(--muted);font-size:13px;transition:.15s}
.chip-toggle svg{width:16px;height:16px}
.chip-toggle[aria-pressed="true"]{color:var(--bg);background:var(--ice);border-color:var(--ice)}
.only-mobile{display:none}

.scroller{flex:1;overflow-y:auto;overscroll-behavior:contain;scroll-behavior:smooth}
.thread{max-width:760px;margin:0 auto;padding:12px 20px 24px}

/* welcome */
.welcome{max-width:760px;margin:0 auto;padding:9vh 20px 30px;display:flex;flex-direction:column;align-items:flex-start}
.mark{width:52px;height:52px;border-radius:16px;border:1px solid var(--line2);display:grid;place-items:center;background:linear-gradient(160deg,var(--surface2),var(--bg));position:relative;margin-bottom:26px}
.mark::after{content:"";position:absolute;inset:-1px;border-radius:16px;box-shadow:0 0 0 1px rgba(168,230,255,.12),0 0 40px rgba(111,211,255,.12);animation:breathe 4s ease-in-out infinite}
.mark span{font:700 22px "Geist";color:var(--text)}
@keyframes breathe{50%{box-shadow:0 0 0 1px rgba(168,230,255,.25),0 0 60px rgba(111,211,255,.22)}}
.welcome h1{margin:0;font-weight:600;font-size:clamp(32px,5.4vw,46px);line-height:1.04;letter-spacing:-1.6px}
.welcome p{color:var(--muted);margin:14px 0 30px;font-size:16px}
.starters{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:100%}
.starter{text-align:left;padding:15px 16px;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;gap:4px;transition:.15s}
.starter:hover{border-color:var(--line2);background:var(--surface2);transform:translateY(-1px)}
.starter b{font-weight:500;font-size:14.5px}
.starter span{color:var(--muted);font-size:13px}
.welcome-credit{margin-top:26px;font:11.5px "Geist Mono";color:var(--muted);text-decoration:none;letter-spacing:.3px}
.welcome-credit:hover{color:var(--ice)}

/* messages */
.msg{margin:22px 0;animation:rise .25s ease}
@keyframes rise{from{opacity:0;transform:translateY(6px)}}
.msg.user{display:flex;flex-direction:column;align-items:flex-end}
.msg.user .bubble{max-width:82%;background:var(--surface2);border:1px solid var(--line);padding:11px 15px;border-radius:18px 18px 6px 18px;white-space:pre-wrap;word-wrap:break-word;line-height:1.55}
.msg.user img{display:block;max-width:240px;max-height:240px;border-radius:12px;margin-bottom:8px;border:1px solid var(--line)}
.msg.bot{display:grid;grid-template-columns:28px 1fr;gap:14px}
.bot-avatar{width:28px;height:28px;border-radius:8px;background:var(--text);color:var(--bg);display:grid;place-items:center;font:700 13px "Geist";margin-top:2px}
.bot-body{min-width:0}
.md{line-height:1.68;color:var(--text);word-wrap:break-word}
.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}
.md p{margin:0 0 12px}
.md ul,.md ol{margin:0 0 12px;padding-left:22px}
.md li{margin:4px 0}
.md li::marker{color:var(--muted)}
.md strong{font-weight:600;color:#fff}
.md h1,.md h2,.md h3{font-weight:600;letter-spacing:-.3px;margin:20px 0 8px;line-height:1.3}
.md h1{font-size:21px}.md h2{font-size:18px}.md h3{font-size:16px}
.md a{color:var(--ice);text-decoration:none;border-bottom:1px solid rgba(168,230,255,.35)}
.md a:hover{border-bottom-color:var(--ice)}
.md blockquote{margin:0 0 12px;padding:2px 14px;border-left:2px solid var(--ice);color:var(--soft)}
.md code{font:13px "Geist Mono";background:var(--surface2);border:1px solid var(--line);padding:1px 6px;border-radius:6px}
.md table{border-collapse:collapse;margin:0 0 14px;display:block;overflow-x:auto;font-size:14px}
.md th,.md td{border:1px solid var(--line2);padding:7px 11px;text-align:left}
.md th{background:var(--surface)}
.md hr{border:0;border-top:1px solid var(--line);margin:18px 0}
.codeblock{margin:0 0 14px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#111418}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:7px 10px 7px 14px;border-bottom:1px solid var(--line);font:11.5px "Geist Mono";color:var(--muted)}
.code-head button{display:flex;align-items:center;gap:6px;font:11.5px "Geist Mono";color:var(--muted);padding:4px 8px;border-radius:7px}
.code-head button:hover{color:var(--text);background:var(--surface2)}
.code-head svg{width:14px;height:14px}
.codeblock pre{margin:0;padding:14px;overflow-x:auto}
.codeblock pre code{background:none;border:0;padding:0;font:13px/1.6 "Geist Mono"}
.hljs{background:transparent!important}
.actions{display:flex;gap:2px;margin-top:10px;margin-left:-8px;opacity:.75;transition:.15s}
.msg.bot:hover .actions{opacity:1}
.actions button{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:8px;color:var(--muted);font-size:12.5px}
.actions button:hover{color:var(--text);background:var(--surface)}
.actions svg{width:15px;height:15px}
.msg.error .md{color:var(--danger)}
.retry{margin-top:10px;display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:9px;border:1px solid var(--line2);font-size:13px;color:var(--soft)}
.retry:hover{border-color:var(--ice);color:var(--text)}
.thinking{display:flex;gap:5px;padding:9px 0}
.thinking span{width:6px;height:6px;border-radius:50%;background:var(--ice);opacity:.3;animation:blink 1.2s infinite}
.thinking span:nth-child(2){animation-delay:.15s}.thinking span:nth-child(3){animation-delay:.3s}
@keyframes blink{40%{opacity:1;transform:translateY(-2px)}}

/* composer */
.composer-zone{padding:8px 20px calc(10px + var(--safe-b));max-width:800px;width:100%;margin:0 auto}
.composer{display:flex;align-items:flex-end;gap:6px;padding:7px;border-radius:20px;background:var(--surface);border:1px solid var(--line2);transition:.15s}
.composer:focus-within{border-color:#3a434d;box-shadow:0 0 0 4px rgba(168,230,255,.05)}
.composer textarea{flex:1;resize:none;border:0;outline:0;background:none;padding:8px 4px;max-height:180px;line-height:1.5;font-size:16px}
.composer textarea::placeholder{color:var(--muted)}
.attach{color:var(--muted)}
.send{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--text);color:var(--bg);transition:.15s}
.send svg{stroke-width:2.2}
.send:disabled{background:var(--surface2);color:var(--muted);cursor:default}
.send.stop{background:var(--surface2);color:var(--text)}
.fineprint{text-align:center;color:var(--muted);font-size:11.5px;margin-top:8px}
.attachment{margin-bottom:8px}
.attach-chip{display:inline-flex;align-items:center;gap:10px;padding:6px 8px 6px 6px;border-radius:12px;background:var(--surface);border:1px solid var(--line2);font-size:13px;color:var(--soft);max-width:100%}
.attach-chip img{width:38px;height:38px;object-fit:cover;border-radius:8px}
.attach-chip span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}

/* memory sheet */
.sheet{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.55);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px;opacity:0;pointer-events:none;transition:.2s}
.sheet.open{opacity:1;pointer-events:auto}
.sheet-card{width:100%;max-width:480px;background:var(--side);border:1px solid var(--line2);border-radius:20px;padding:22px;transform:translateY(10px);transition:.2s}
.sheet.open .sheet-card{transform:none}
.sheet-head{display:flex;justify-content:space-between;align-items:flex-start}
.sheet-head small{font:10.5px "Geist Mono";letter-spacing:1.4px;color:var(--ice)}
.sheet-head h2{margin:4px 0 0;font-weight:600;font-size:22px;letter-spacing:-.4px}
.sheet p{color:var(--muted);font-size:14px;line-height:1.5}
.sheet textarea{width:100%;min-height:150px;resize:vertical;padding:12px 14px;border-radius:12px;background:var(--surface);border:1px solid var(--line2);outline:0;font-size:15px;line-height:1.5}
.sheet textarea:focus{border-color:#3a434d}
.primary{margin-top:14px;width:100%;padding:12px;border-radius:12px;background:var(--text);color:var(--bg);font-weight:600}

.toast{position:fixed;left:50%;bottom:calc(96px + var(--safe-b));transform:translate(-50%,10px);background:var(--text);color:var(--bg);padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:500;opacity:0;pointer-events:none;transition:.2s;z-index:80;white-space:nowrap}
.toast.show{opacity:1;transform:translate(-50%,0)}
.scrim{display:none}

@media (max-width:860px){
  .only-mobile{display:grid}.only-desktop{display:none}
  .sidebar{position:fixed;inset:0 auto 0 0;z-index:50;width:min(86vw,320px);transform:translateX(-102%);transition:transform .28s cubic-bezier(.2,.8,.2,1);box-shadow:20px 0 60px rgba(0,0,0,.5)}
  .sidebar.open{transform:none}
  .scrim{display:block;position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:.25s}
  .scrim.show{opacity:1;pointer-events:auto}
  .chat-more{opacity:1}
  .topbar{padding:var(--safe-t) 8px 0}
  .title{text-align:center}
  .thread{padding:6px 16px 20px}
  .welcome{padding:6vh 18px 20px}
  .starters{grid-template-columns:1fr 1fr;gap:8px}
  .starter{padding:13px}
  .starter span{font-size:12px}
  .composer-zone{padding:6px 10px calc(8px + var(--safe-b))}
  .msg.user .bubble{max-width:88%}
  .msg.bot{grid-template-columns:1fr;gap:8px}
  .bot-avatar{width:24px;height:24px;font-size:12px;border-radius:7px}
  .actions{opacity:1}
  .fineprint{font-size:10.5px}
}
@media (max-width:380px){.starters{grid-template-columns:1fr}}
@media (display-mode:standalone){#installBtn{display:none!important}}

.switch-row{display:flex;align-items:center;gap:10px;margin-top:12px;color:var(--soft);font-size:14px;cursor:pointer}
.switch-row input{width:18px;height:18px;accent-color:var(--ice)}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:16px;padding:4px;border-radius:12px;background:var(--surface);border:1px solid var(--line2)}
.tab{padding:9px;border-radius:9px;color:var(--muted);font-weight:500;font-size:14px}
.tab.active{background:var(--side);color:var(--text);box-shadow:0 1px 0 var(--line2)}
.auth-form{display:grid;gap:10px}
.auth-form input{width:100%;padding:12px 14px;border-radius:12px;background:var(--surface);border:1px solid var(--line2);outline:0;font-size:16px;color:var(--text)}
.auth-form input:focus{border-color:#3a434d}
.auth-form .primary{margin-top:4px}
.auth-form .primary:disabled{opacity:.6}
.auth-error{min-height:0;color:#ff8a8a;font-size:13.5px}
.auth-error:empty{display:none}
.primary.ghost{background:transparent;color:var(--text);border:1px solid var(--line2)}
#accountLabel{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:190px}

/* MANUEL wordmark */
.wordmark{font:800 15px "Geist";letter-spacing:4px;line-height:1;background:linear-gradient(100deg,#f4f6f8 0%,#e9ecef 45%,var(--ice) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;padding-right:2px;white-space:nowrap}
.brand-text{align-items:center;gap:8px}
.brand-text .wordmark{font-size:17px;letter-spacing:5px}
.ai-tag{font:500 10.5px "Geist Mono";color:var(--ice);letter-spacing:1px;padding:3px 6px;border:1px solid rgba(168,230,255,.3);border-radius:6px}
.mark{width:auto;height:auto;padding:16px 22px;border-radius:18px}
.mark::after{border-radius:18px}
.wordmark.xl{font-size:30px;letter-spacing:9px}
.msg.bot{grid-template-columns:1fr;gap:6px}
.bot-avatar{width:auto;height:auto;background:none;border-radius:0;display:block;margin:0}
.wordmark.sm{font-size:11px;letter-spacing:3.2px}
.adult-badge{font:700 10.5px "Geist Mono";padding:2px 5px;border-radius:5px;border:1px solid var(--line2);color:var(--muted)}
#adultNav[aria-pressed="true"] .adult-badge{background:#ff6b8a;border-color:#ff6b8a;color:#14080b}
#adultNav[aria-pressed="true"]{color:var(--text)}
@media (max-width:860px){.wordmark.xl{font-size:24px;letter-spacing:7px}.mark{padding:13px 18px}.bot-avatar{width:auto;height:auto}}
.mark .wordmark.xl{margin-right:-9px}
@media (max-width:860px){.mark .wordmark.xl{margin-right:-7px}}

/* voice */
.mic{color:var(--muted)}
.mic.rec{color:#fff;background:#e5484d;animation:micpulse 1.2s ease-in-out infinite}
.mic.busy{opacity:.55;pointer-events:none}
@keyframes micpulse{0%,100%{box-shadow:0 0 0 0 rgba(229,72,77,.45)}50%{box-shadow:0 0 0 7px rgba(229,72,77,0)}}
.actions button.speaking{color:var(--text)}

/* generated images */
.gen-image{margin:4px 0 6px}
.gen-image img{display:block;max-width:min(100%,440px);border-radius:14px;border:1px solid var(--line2);cursor:zoom-in}
.img-wait{margin-top:6px;font-size:13px;color:var(--muted)}