:root{
  --bg:#0b0d10; --panel:#11161c; --panel2:#171d24; --line:#26303a;
  --text:#edf3f8; --muted:#8d99a6; --faint:#5f6b77;
  --accent:#45d46b; --accent-ink:#06150a; --warn:#e7b446; --bad:#ff6b6b; --blue:#6cb6ff;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  background:radial-gradient(900px 400px at 80% -10%,#17251d 0,transparent 62%),var(--bg);
  color:var(--text);font:15px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  overflow:hidden;-webkit-tap-highlight-color:transparent;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:1px solid var(--line);background:var(--panel2);border-radius:10px;padding:9px 14px}
button:active{transform:translateY(1px)}
button:disabled{opacity:.48;cursor:not-allowed}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}
button.danger{color:var(--bad);border-color:#4a292d;background:#211619}
button.ghost{background:transparent;border-color:transparent;color:var(--muted)}
button.compact{padding:7px 11px;font-size:13px}
button.icon{width:40px;height:40px;padding:0;display:grid;place-items:center;background:transparent;border-color:transparent;font-size:18px}
input,select,textarea{background:#0d1116;border:1px solid var(--line);border-radius:10px;outline:none}
input:focus,select:focus,textarea:focus{border-color:#3f5568}
.hidden{display:none!important}

#shell{height:100dvh;display:flex;flex-direction:column}
.topbar{height:58px;flex:none;display:flex;align-items:center;gap:9px;padding:0 12px;border-bottom:1px solid var(--line);background:rgba(17,22,28,.92);backdrop-filter:blur(12px)}
.brand{font-weight:750;letter-spacing:-.01em;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand span{font-weight:400;color:var(--faint);font-size:12px;margin-left:4px}
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:3px 9px;font-size:11px;color:var(--muted);white-space:nowrap}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--bad)}
.badge.online{color:#bfeecd;border-color:#254d31;background:#102016}
.badge.online i{background:var(--accent);box-shadow:0 0 8px rgba(69,212,107,.6)}
.badge.working{color:#ffe1a6;border-color:#584421;background:#211b11}

main{flex:1;min-height:0;position:relative}
.screen{height:100%;overflow-y:auto;padding:20px 16px calc(22px + env(safe-area-inset-bottom))}
.screen.hidden{display:none}
.hero{padding:34px 6px 22px}
.kicker{font-size:10.5px;letter-spacing:.13em;font-weight:700;color:var(--accent)}
h1,h2,p{margin-top:0}
h1{font-size:31px;line-height:1.1;letter-spacing:-.035em;margin-bottom:12px;max-width:340px}
h2{font-size:20px;line-height:1.2;letter-spacing:-.025em;margin-bottom:3px}
.hero p{color:var(--muted);max-width:430px}
.panel{border:1px solid var(--line);background:rgba(17,22,28,.9);border-radius:16px;padding:16px}
.stack{display:flex;flex-direction:column;gap:9px}
.stack label{font-size:12px;color:var(--muted);margin-top:4px}
.stack input{height:48px;padding:0 13px}
#pairCode{text-transform:uppercase;letter-spacing:.24em;font:700 21px ui-monospace,SFMono-Regular,Consolas,monospace;text-align:center}
.error{color:var(--bad);font-size:13px;padding:4px 1px}
.footnote{color:var(--faint);font-size:11.5px;margin:14px 8px;text-align:center}

.section-head,.chat-titlebar{display:flex;align-items:center;justify-content:space-between;gap:14px}
.section-head{padding:24px 2px 16px}
.section-head h2{font-size:22px;margin-bottom:0}
.note{color:var(--muted);font-size:12px;margin:0 2px 12px}
.session-list{display:flex;flex-direction:column;gap:8px}
.session{display:flex;align-items:center;gap:11px;text-align:left;width:100%;padding:14px 13px;background:var(--panel);border:1px solid var(--line);border-radius:13px}
.session .glyph{width:34px;height:34px;flex:none;display:grid;place-items:center;border-radius:10px;background:#17251d;color:var(--accent);font-weight:700}
.session .meta{min-width:0;flex:1;display:flex;flex-direction:column}
.session .meta > span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.session .title{font-weight:600}
.session .path,.session .sub{font-size:11.5px;color:var(--faint);margin-top:1px}
.session .chev{color:var(--faint)}
.empty{color:var(--faint);text-align:center;margin:44px 12px;font-size:13.5px}

.chat-titlebar{flex:none;padding:14px 14px 11px;border-bottom:1px solid var(--line);background:rgba(15,19,24,.86);position:sticky;top:-20px;z-index:3;margin:-20px -16px 0;backdrop-filter:blur(12px)}
.chat-titlebar h2{font-size:16px;max-width:72vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#chatKicker{font-size:9.5px}
.messages{display:flex;flex-direction:column;gap:12px;padding:18px 1px 20px;min-height:calc(100% - 130px)}
.msg{max-width:94%}
.msg .who{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:0 0 3px 3px}
.msg .body{white-space:pre-wrap;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:#172331;border:1px solid #263c52;border-radius:14px 14px 4px 14px;padding:10px 12px}
.msg.assistant{align-self:flex-start}
.msg.assistant .body{padding:2px 4px}
.msg.error,.msg.denied{align-self:stretch;color:var(--bad);font-size:13px;padding:0 4px}
.loading{color:var(--muted);font-size:13px;padding:20px 4px}

.tool-group{align-self:stretch;border:1px solid var(--line);border-radius:11px;background:#0f1419;overflow:hidden}
.tool-group summary{list-style:none;cursor:pointer;padding:9px 11px;font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px}
.tool-group summary::-webkit-details-marker{display:none}
.tool-group summary::before{content:"›";color:var(--blue);font-size:16px;line-height:1}
.tool-group[open] summary::before{transform:rotate(90deg)}
.tool-group .tools{padding:0 11px 9px;border-top:1px solid #1b232b}
.tool{font:11.5px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace;color:#9aa7b4;padding:7px 0;border-bottom:1px solid #171e25;white-space:pre-wrap;overflow-wrap:anywhere}
.tool:last-child{border-bottom:none}
.tool b{color:var(--blue);font-weight:600}
.shot{width:min(100%,430px);border:1px solid var(--line);border-radius:11px;display:block;background:#0e1318}
.unavailable{border:1px dashed var(--line);border-radius:10px;padding:10px;color:var(--faint);font-size:12px;max-width:430px}

.approval{border:1px solid #584421;background:#201b12;border-radius:13px;padding:12px;max-width:100%}
.approval.resolved{border-color:var(--line);background:var(--panel)}
.approval .label{font-size:11px;font-weight:700;color:var(--warn);letter-spacing:.06em;text-transform:uppercase}
.approval.resolved .label{color:var(--muted)}
.approval .action{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--text);margin:5px 0}
.approval pre{margin:7px 0 0;max-height:160px;overflow:auto;white-space:pre-wrap;word-break:break-word;font:11px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted)}
.approval .row{display:flex;gap:8px;margin-top:11px}
.approval .row button{flex:1}

.composer{position:sticky;bottom:0;background:rgba(17,22,28,.96);backdrop-filter:blur(14px);border-top:1px solid var(--line);padding:9px 12px calc(10px + env(safe-area-inset-bottom));margin:0 -16px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px 8px}
.composer-tools{grid-column:1/-1;display:flex;align-items:center;gap:6px;justify-content:space-between}
.composer-tools select{background:transparent;border-color:transparent;color:var(--faint);font-size:11.5px;padding:3px 4px;max-width:190px}
.composer textarea{resize:none;min-height:44px;max-height:130px;padding:10px 12px;line-height:1.45;grid-column:1;border-radius:12px}
#promptInput:placeholder-shown{direction:ltr;text-align:left}
.composer-actions{display:flex;align-items:flex-end;gap:6px;grid-column:2}
.composer-actions button{min-height:44px}
#micBtn.listening{color:var(--accent);background:#102016;border-color:#254d31}

.modal{position:fixed;inset:0;z-index:20;background:rgba(0,0,0,.65);display:flex;align-items:flex-end;justify-content:center;padding:12px}
.modal.hidden{display:none}
.sheet{width:min(480px,100%);background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));box-shadow:0 30px 90px rgba(0,0,0,.5)}
.sheet h2{font-size:20px;margin-bottom:5px}
.sheet p{font-size:13px;margin-bottom:16px}
.sheet label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.sheet select{width:100%;height:46px;padding:0 11px}
.sheet-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.muted{color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom));transform:translate(-50%,20px);max-width:min(90vw,420px);padding:9px 13px;border-radius:10px;background:#222b35;border:1px solid #34414e;color:var(--text);font-size:12.5px;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;z-index:30;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (min-width:720px){
  #shell{max-width:680px;margin:0 auto;border-left:1px solid var(--line);border-right:1px solid var(--line)}
  .screen{padding-left:24px;padding-right:24px}
  .chat-titlebar{margin-left:-24px;margin-right:-24px;padding-left:22px;padding-right:22px}
  .composer{margin-left:-24px;margin-right:-24px}
  .modal{align-items:center}
}