:root{
  --m0:#5B7CFA; --m1:#2FB67C; --m2:#F5A524; --m3:#E5484D; --m4:#9B6BDF; --m5:#14B8D4;
  --bg:#FFFFFF;
  --sidebar:#FCFCFD;
  --soft:#F7F7F8;
  --soft-2:#F2F2F4;
  --ink:#0D0D0F;
  --ink-2:#55555F;
  --ink-3:#8C8C97;
  --rule:#EBEBEE;
  --rule-2:#DFDFE4;
  --accent:#2F62F3;
  --accent-ink:#2F62F3;
  --accent-soft:#E9EDFC;
  --code-chip-bg:#F3EFFE;
  --code-chip-ink:#7A4DD6;
  --ok:#0F8A5F;
  --ok-soft:#E3F5ED;
  --warn:#9A6A10;
  --warn-soft:#FAF0DC;
  --bad:#C43D2B;
  --bad-soft:#FBEAE7;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono:'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --shadow:0 1px 2px rgba(13,13,15,.04), 0 8px 28px -20px rgba(13,13,15,.35);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F0F11; --sidebar:#131315; --soft:#1A1A1D; --soft-2:#212125;
    --ink:#F2F2F4; --ink-2:#A6A6B0; --ink-3:#77777F;
    --rule:#26262A; --rule-2:#303036;
    --accent:#6C8FFF; --accent-ink:#9DB2FF; --accent-soft:#1C2340;
    --code-chip-bg:#241E38; --code-chip-ink:#C0A6FF;
    --ok:#4ECB99; --ok-soft:#10291F; --warn:#E0AC53; --warn-soft:#2A2113;
    --bad:#F08A76; --bad-soft:#331711;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 28px -20px rgba(0,0,0,.9);
  }
}
:root[data-theme="dark"]{
  --bg:#0F0F11; --sidebar:#131315; --soft:#1A1A1D; --soft-2:#212125;
  --ink:#F2F2F4; --ink-2:#A6A6B0; --ink-3:#77777F;
  --rule:#26262A; --rule-2:#303036;
  --accent:#6C8FFF; --accent-ink:#9DB2FF; --accent-soft:#1C2340;
  --code-chip-bg:#241E38; --code-chip-ink:#C0A6FF;
  --ok:#4ECB99; --ok-soft:#10291F; --warn:#E0AC53; --warn-soft:#2A2113;
  --bad:#F08A76; --bad-soft:#331711;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 28px -20px rgba(0,0,0,.9);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.55;letter-spacing:-.006em;
  -webkit-font-smoothing:antialiased;
}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none;padding:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ============ shared ============ */
.tag{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:500;
  padding:2px 9px;border-radius:999px;white-space:nowrap;background:var(--soft-2);color:var(--ink-2);
}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.line{background:transparent;box-shadow:inset 0 0 0 1px var(--rule-2);color:var(--ink-3)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
.tag.ok .dot{animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.25}}

.btn{
  display:inline-block;padding:7px 14px;border-radius:9px;font-size:14px;font-weight:500;
  box-shadow:inset 0 0 0 1px var(--rule-2);background:var(--bg);text-decoration:none;
}
.btn:hover{background:var(--soft)}
.btn.primary{background:var(--accent);color:#fff;box-shadow:none}
.btn.primary:hover{filter:brightness(1.07);background:var(--accent)}
.btn.quiet{box-shadow:none;color:var(--ink-2)}
.btn.quiet:hover{background:var(--soft-2)}
code{
  font-family:var(--mono);font-size:.86em;background:var(--code-chip-bg);color:var(--code-chip-ink);
  padding:1.5px 6px;border-radius:6px;
}

/* ============ login ============ */
.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.login-card{text-align:center;padding:40px;border-radius:18px;box-shadow:inset 0 0 0 1px var(--rule);background:var(--bg)}
.login-card h1{letter-spacing:-.03em}
.login-card p{color:var(--ink-2)}
.btn-google{display:inline-block;background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:9px;text-decoration:none;font-size:14px;margin-top:16px}
.btn-google:hover{filter:brightness(1.15)}

/* ============ shell ============ */
.shell{display:grid;grid-template-columns:250px 1fr;height:100vh;height:100dvh;overflow:hidden;transition:grid-template-columns .2s ease}
.side{background:var(--sidebar);border-right:1px solid var(--rule);display:flex;flex-direction:column;min-height:0;min-width:0;overflow:hidden}
.side-top{display:flex;align-items:center;gap:9px;padding:16px 14px 12px}
.side-top #sideBtn{margin-left:auto}
.logo{width:30px;height:30px;border-radius:9px;flex:none;overflow:hidden;display:block}
.logo img{width:100%;height:100%;object-fit:cover;display:block}
.wordmark{font-size:19px;font-weight:700;letter-spacing:-.03em}

.nav{flex:none;padding:4px 8px;display:flex;flex-direction:column;gap:1px}
.nav-link{
  display:flex;align-items:center;gap:11px;width:100%;
  padding:8px 10px;border-radius:9px;font-size:15px;text-align:left;color:var(--ink);text-decoration:none;white-space:nowrap;
}
.nav-link:hover{background:var(--soft-2)}
.nav-link.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:500}
.nav-link .ico{width:18px;height:18px;flex:none;stroke:var(--ink-3);fill:none;stroke-width:1.6}
.nav-link.active .ico{stroke:var(--accent-ink)}

.rule{height:1px;background:var(--rule);margin:10px 14px}

.side-foot{display:flex;align-items:center;gap:10px;padding:12px 14px;border-top:1px solid var(--rule)}
.pfp{
  width:30px;height:30px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-size:11px;font-weight:600;color:var(--accent-ink);
  background:var(--bg);border:1.5px solid var(--accent);
}
.uname{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.iconbtn{padding:6px;border-radius:8px;color:var(--ink-3);flex:none}
.iconbtn:hover{background:var(--soft-2);color:var(--ink)}
.iconbtn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.6;display:block}

.main{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}
.topbar{display:flex;align-items:center;gap:10px;padding:0 22px;height:56px;flex:none;border-bottom:1px solid var(--rule)}
.topbar-acts{margin-left:auto;display:flex;align-items:center;gap:8px}
.topbar h1{font-size:15px;font-weight:600;margin:0;letter-spacing:-.015em}
.topbar .sub{color:var(--ink-3);font-size:13.5px;white-space:nowrap}

/* ============ MCP split view ============ */
.split{display:grid;grid-template-columns:320px 1fr;flex:1;min-height:0}
.lane{border-right:1px solid var(--rule);overflow-y:auto;min-height:0;padding:10px 10px 20px}
.pane{overflow-y:auto;min-height:0;padding:20px 28px 44px}
.lane-top{display:flex;gap:8px;padding:2px 4px 10px}
.search{
  flex:1;border-radius:10px;background:var(--soft);padding:8px 12px;font-size:14px;
  outline:none;border:none;min-width:0;
}
.search::placeholder{color:var(--ink-3)}

.row{display:block;width:100%;text-align:left;padding:11px 12px;border-radius:12px;margin-bottom:2px}
.row:hover{background:var(--soft-2)}
.row[aria-selected="true"]{background:var(--accent-soft)}
.row-top{display:flex;align-items:center;gap:8px;margin-bottom:2px}
.row-name{font-weight:500;font-size:14.5px}
.row[aria-selected="true"] .row-name{color:var(--accent-ink)}
.row-sub{font-size:12.5px;color:var(--ink-3)}

.phead{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.phead h2{font-size:24px;font-weight:600;letter-spacing:-.03em;margin:0}
.phead .acts{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.pdesc{color:var(--ink-2);margin:0 0 26px;max-width:66ch}
.sec{margin-bottom:28px}
.sec > h3{font-size:16px;font-weight:600;margin:0 0 12px;letter-spacing:-.02em;padding-bottom:10px;border-bottom:1px solid var(--rule)}

.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(176px,1fr));gap:10px}
.fact{border-radius:12px;background:var(--soft);padding:12px 14px}
.fact dt{font-size:12.5px;color:var(--ink-3);margin-bottom:3px}
.fact dd{margin:0;font-size:14.5px;font-weight:500;letter-spacing:-.01em;word-break:break-word}

.tools{display:flex;flex-wrap:wrap;gap:6px}
.tool{font-family:var(--mono);font-size:11.5px;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--ink-2)}
.note{border-left:2px solid var(--accent);padding:1px 0 1px 13px;margin:16px 0 0;font-size:13.5px;color:var(--ink-2);max-width:68ch}
.empty{padding:44px 0;text-align:center;color:var(--ink-3);font-size:14px}

/* ============ chat ============ */
.view-chat{display:flex;flex-direction:column;min-height:0;flex:1}
.thread{flex:1;overflow-x:hidden;overflow-y:auto;min-height:0;padding:14px 22px 8px}
.inner{max-width:760px;margin:0 auto}
.turn{margin-bottom:30px}
.turn.chat-user{display:flex;justify-content:flex-end}
.turn .bubble{overflow-wrap:break-word;min-width:0}
.turn.chat-user .bubble{background:var(--soft);border-radius:18px;padding:11px 16px;max-width:76%}
.turn.chat-assistant .bubble p{margin:0 0 13px}
.turn.chat-assistant .bubble p:last-child{margin-bottom:0}
.turn.chat-assistant .bubble pre{background:var(--soft-2);padding:10px 12px;border-radius:10px;overflow-x:auto}

.welcome{max-width:760px;margin:12vh auto 0;padding:0 22px}
.welcome h2{font-size:30px;font-weight:600;letter-spacing:-.035em;margin:0 0 8px}
.welcome p{color:var(--ink-2);margin:0 0 24px;max-width:54ch}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:9px 14px;border-radius:999px;box-shadow:inset 0 0 0 1px var(--rule-2);font-size:14px;color:var(--ink-2)}
.chip:hover{background:var(--soft);color:var(--ink)}

.composer{flex:none;padding:8px 22px 20px}
.cbox{
  max-width:760px;margin:0 auto;border-radius:22px;background:var(--bg);
  box-shadow:inset 0 0 0 1px var(--rule-2), var(--shadow);padding:6px;
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:4px;
}
.cbox:focus-within{box-shadow:inset 0 0 0 1px var(--accent), var(--shadow)}
/* One line of text is 24px + 9px above and below = 42px, the same as a 36px button plus its 3px
   margins, so a single-line message, the + button and the send button all share one centre line. */
#chat-input{
  flex:1;min-width:0;border:none;background:none;resize:none;padding:9px 12px;
  font-size:15px;line-height:24px;max-height:190px;outline:none;font-family:inherit;
}
.attach-btn ~ #chat-input{padding-left:4px}
#chat-input::placeholder{color:var(--ink-3)}
.send{
  margin:3px;width:36px;height:36px;border-radius:50%;background:var(--accent);
  display:grid;place-items:center;flex:none;
}
.send svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:2.2}
.send:disabled{opacity:.3}


.approval-card{margin:10px 0;padding:12px 14px;border-radius:12px;box-shadow:inset 0 0 0 1px var(--rule);background:var(--soft);overflow:hidden;transition:max-height .25s ease, opacity .2s ease, margin .25s ease, padding .25s ease}
.approval-card p{margin:0 0 8px;font-size:14px;overflow-wrap:break-word}
.approval-card pre{margin:0 0 10px;padding:8px 10px;border-radius:8px;background:var(--soft-2);font-family:var(--mono);font-size:12px;white-space:pre-wrap;word-break:break-word}
.approval-actions{display:flex;gap:8px}
.approval-card.collapsing{max-height:0 !important;opacity:0;margin:0;padding:0 14px}

.tool-call{font-size:12.5px;border-radius:10px;box-shadow:inset 0 0 0 1px var(--rule);padding:6px 10px;background:var(--soft);margin-bottom:8px;min-width:0}
.tool-call summary{cursor:pointer;color:var(--ink-3);font-family:var(--mono);font-size:11.5px;display:flex;align-items:center;gap:8px;list-style:none;min-width:0}
.tool-call summary::-webkit-details-marker{display:none}
.tool-call summary::after{content:"";flex:none;width:6px;height:6px;margin:0 2px 0 auto;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);transition:transform .15s ease}
.tool-call[open] summary::after{transform:rotate(45deg)}
.tool-call-name{flex:none;color:var(--ink-2);font-weight:500}
.tool-call-preview{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tool-call.running .tool-call-name::after{content:"";display:inline-block;width:5px;height:5px;margin-left:7px;border-radius:50%;background:var(--accent);vertical-align:middle;animation:breathe 1.2s ease-in-out infinite}
.tool-call.failed .tool-call-name{color:#c0392b}
.tool-call-body{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.tool-call-label{margin-bottom:4px;font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.tool-call pre.tool-args,.tool-call pre.tool-result{margin:0;max-height:240px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.5;color:var(--ink-2)}
.tool-call-static{display:flex;align-items:center;gap:6px;color:var(--ink-3)}
.tool-call-icon{width:14px;height:14px;display:inline-flex;flex:none}
.tool-call-icon svg,.tool-call-icon img{width:100%;height:100%}

.turn.chat-assistant .bubble>.chat-text{display:block;margin-bottom:8px}
.turn.chat-assistant .bubble>.chat-text:last-child{margin-bottom:0}
.chat-text.typing::after{content:"\258C";margin-left:2px;animation:blink 1s steps(1) infinite;color:var(--ink-3)}
@keyframes blink{50%{opacity:0}}

/* ============ apps grid ============ */
.apps-wrap{padding:20px 28px 44px;overflow-y:auto;min-height:0;flex:1}
.apps-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.seg{display:inline-flex;gap:2px;padding:3px;border-radius:10px;background:var(--soft)}
.seg a,.seg button{padding:6px 14px;border-radius:8px;font-size:13.5px;font-weight:500;color:var(--ink-3);text-decoration:none}
.seg a.on,.seg button.on{background:var(--bg);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.apps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.app-card{position:relative;display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:12px;border:1px solid var(--rule);background:var(--bg);cursor:pointer;transition:border-color .15s ease, box-shadow .15s ease}
.app-card:hover,.app-card:focus-within{border-color:var(--rule-2);box-shadow:var(--shadow)}
.app-card-head{display:flex;align-items:center;gap:12px;padding-right:76px;min-width:0}
.app-card-mark{width:40px;height:40px;border-radius:10px;flex:none;display:grid;place-items:center;font-weight:600;font-size:16px;background:hsl(var(--h) 60% 50% / .14);color:hsl(var(--h) 55% 42%)}
.app-card-title{display:flex;flex-direction:column;gap:2px;min-width:0}
.app-card-name{font-weight:600;font-size:15px;letter-spacing:-.01em;text-decoration:none;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;outline:none}
.app-card-name::after{content:"";position:absolute;inset:0;border-radius:12px}
.app-card-meta{font-size:12.5px;color:var(--ink-3)}
.app-card-sub{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:wrap}
.app-card-sub .tag.free{font-size:11px;padding:1px 8px 1px 6px}
.app-card-corner{position:absolute;top:12px;right:12px;display:flex;align-items:center;gap:6px;z-index:1}
.app-card-acts{display:flex;gap:2px;padding:0 2px;border-radius:8px;background:var(--bg);opacity:0;transition:opacity .15s ease}
.app-card-acts form{margin:0}
.app-card:hover .app-card-acts,.app-card:focus-within .app-card-acts{opacity:1}
.app-card-cta{display:flex;gap:6px;position:relative;z-index:1;opacity:0;transition:opacity .15s ease}
.app-card-cta form{margin:0}
.app-card-cta .btn{padding:4px 12px;font-size:12.5px;border-radius:8px}
.app-card:hover .app-card-cta,.app-card:focus-within .app-card-cta{opacity:1}
@media (hover:none){.app-card-acts,.app-card-cta{opacity:1}}
.rename-input{font:inherit;color:inherit;letter-spacing:inherit;background:var(--bg);border:1px solid var(--accent);border-radius:6px;padding:2px 6px;outline:none;min-width:0;width:100%}
.title-edit{display:inline-flex;align-items:center;gap:6px}
.title-edit .rename-input{width:260px}
.title-edit .iconbtn{padding:4px}
.title-edit .iconbtn svg{width:14px;height:14px}
.app-card-desc{margin:0;font-size:13.5px;line-height:1.45;color:var(--ink-2);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.app-card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:12px;border-top:1px solid var(--rule);min-height:42px}
.app-card-services{display:flex;gap:6px}
.app-card-services .svc-icon{width:24px;height:24px;border-radius:7px;padding:4px}
.app-card-nosvc{font-size:12.5px;color:var(--ink-3)}
.new-app-form{display:flex;gap:8px}
.new-app-form input{border:none;border-radius:9px;background:var(--soft);padding:8px 12px;font-size:14px;outline:none;min-width:220px}

/* ============ app builder ============ */
.builder-split{grid-template-columns:var(--builder-split-w, 400px) 10px 1fr}
.builder-split.dragging{cursor:col-resize;user-select:none}
.builder-split.dragging iframe{pointer-events:none}
.builder-lane{display:flex;flex-direction:column;min-height:0}
.builder-pane{padding:0;display:flex;flex-direction:column}
.split-divider{cursor:col-resize;position:relative;touch-action:none}
.split-divider::after{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--rule);transform:translateX(-50%)}
.split-divider:hover::after,.split-divider.dragging::after{width:2px;background:var(--accent)}
.builder-status{font-size:12.5px;color:var(--ink-3);margin-bottom:6px;display:flex;align-items:center;gap:6px;overflow-wrap:break-word;min-width:0}
.builder-status[hidden]{display:none}
.builder-status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);animation:breathe 1.2s ease-in-out infinite}
.app-frame-wrap{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}
.app-frame-wrap iframe{flex:1;border:none;width:100%;background:#fff}

/* ============ app connect gate ============ */
.gate-wrap{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:40px 20px;overflow:auto}
.gate-card{width:100%;max-width:400px;border-radius:18px;box-shadow:inset 0 0 0 1px var(--rule), var(--shadow);background:var(--bg);padding:26px}
.gate-card h2{font-size:19px;font-weight:600;letter-spacing:-.02em;margin:0 0 4px}
.gate-card > p{color:var(--ink-2);font-size:13.5px;margin:0 0 20px}
.gate-list{display:flex;flex-direction:column}
.gate-row{display:flex;align-items:center;gap:10px;padding:11px 2px;border-bottom:1px solid var(--rule)}
.gate-row:last-child{border-bottom:none}
.gate-row-name{display:flex;align-items:center;gap:10px;font-weight:500;font-size:14.5px;flex:1}
.gate-row .btn{padding:6px 13px;font-size:13px}
.gate-row-acts{display:flex;align-items:center;gap:8px;flex:none}
.svc-icon{width:28px;height:28px;border-radius:8px;flex:none;background:var(--soft-2);object-fit:contain;padding:5px;box-sizing:border-box;display:grid;place-items:center}
.svc-icon svg{width:16px;height:16px}
.row-icon{width:20px;height:20px;border-radius:6px;padding:3px}
.phead-icon{width:34px;height:34px;border-radius:9px;padding:6px}
.gate-row .logo{width:28px;height:28px;border-radius:8px}

/* ============ app info modal ============ */
.modal-overlay{position:fixed;inset:0;background:rgba(13,13,15,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-overlay[hidden]{display:none}
.modal{position:relative;width:100%;max-width:800px;height:580px;max-height:88vh;background:var(--bg);border-radius:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden}
.modal-tabs{display:flex;align-items:flex-end;gap:2px;padding:10px 56px 0 14px;border-bottom:1px solid var(--rule);flex:none}
.modal-tab{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;margin-bottom:-1px;font-size:14px;color:var(--ink-3);border-bottom:2px solid transparent;white-space:nowrap}
.modal-tab:hover{color:var(--ink)}
.modal-tab.active{color:var(--ink);font-weight:500;border-bottom-color:var(--accent)}
.modal-logout{margin:0 0 6px auto;padding:5px 10px;border-radius:8px;font-size:13px;text-decoration:none;color:var(--ink-3)}
.modal-logout:hover{background:var(--bad-soft);color:var(--bad)}
.modal-body{padding:26px 30px 30px;overflow-y:auto;flex:1;display:flex;flex-direction:column}
.modal-pane:not([hidden]){flex:1;display:flex;flex-direction:column}
.modal-pane > .free-hero:only-child,.modal-pane > .info-empty:only-child{margin:auto 0}
.modal-pane > .free-hero:only-child{padding:40px 24px}
.modal-body h3{margin:0 0 8px;font-size:18px;letter-spacing:-.02em}
.modal-body > .modal-pane > p{color:var(--ink-2)}
.modal-close{position:absolute;top:10px;right:12px;width:28px;height:28px;border-radius:8px;color:var(--ink-3);display:grid;place-items:center;font-size:18px;line-height:1}
.modal-close:hover{background:var(--soft-2);color:var(--ink)}

/* ============ responsive ============ */
@media (max-width:980px){
  .split{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  .lane{border-right:none;border-bottom:1px solid var(--rule);max-height:208px}
  .pane{padding:18px 16px 36px}
}
@media (max-width:760px){
  .shell{grid-template-columns:1fr}
  .side{display:none}
  .thread{padding:10px 14px 6px}
  .composer{padding:6px 14px 16px}
}

.relay-note{display:flex;align-items:center;gap:6px;max-width:760px;margin:8px auto 0;padding-left:16px;font-size:12px;color:var(--ink-3)}
.relay-dot{width:6px;height:6px;border-radius:50%;background:var(--ok);flex:none}

/* Chat sessions list in the sidebar */
.side-extra{flex:1;min-height:0;overflow-y:auto;padding:0 8px}
.sess-new{display:flex;align-items:center;gap:8px;width:100%;margin:10px 0 6px;padding:8px 10px;border-radius:9px;border:1px solid var(--rule);font-size:13.5px;font-weight:500;color:var(--ink);text-decoration:none}
.sess-new:hover{background:var(--soft-2)}
.sess-new svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8}
.sess-label{padding:10px 10px 4px;font-size:11.5px;font-weight:500;color:var(--ink-3);letter-spacing:.02em}
.sess{position:relative;display:flex;align-items:center;border-radius:8px}
.sess:hover,.sess.active{background:var(--soft-2)}
.sess.active{background:var(--accent-soft)}
.sess a{flex:1;min-width:0;padding:7px 10px;font-size:13.5px;color:var(--ink);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sess.active a{color:var(--accent-ink);font-weight:500}
.sess .iconbtn{display:none;padding:4px;margin-right:4px}
.sess:hover .iconbtn{display:block}
.sess .iconbtn svg{width:14px;height:14px}
.sess-none{padding:6px 10px;font-size:13px;color:var(--ink-3)}

/* Confirmation dialog (native <dialog>) */
dialog.confirm{border:none;border-radius:16px;padding:22px 24px;max-width:440px;width:calc(100% - 40px);background:var(--bg);color:var(--ink);box-shadow:var(--shadow)}
dialog.confirm::backdrop{background:rgba(13,13,15,.45)}
dialog.confirm h3{margin:0 0 10px;font-size:16px}
dialog.confirm ul{margin:0 0 18px;padding-left:18px;color:var(--ink-2);font-size:14px;line-height:1.55}
dialog.confirm li+li{margin-top:4px}
.confirm-acts{display:flex;justify-content:flex-end;gap:8px}
.chip-btn{cursor:pointer;font:inherit;font-size:12px;font-weight:500}
.chip-btn:hover{filter:brightness(.96)}

/* Collapsed sidebar: an icon rail, so the logo and navigation stay one click away */
:root[data-side=collapsed] .shell{grid-template-columns:60px 1fr}
:root[data-side=collapsed] .wordmark,
:root[data-side=collapsed] .nav-text,
:root[data-side=collapsed] .side-extra,
:root[data-side=collapsed] .uname{display:none}
:root[data-side=collapsed] .side-top{flex-direction:column;gap:10px;padding:16px 0 10px}
:root[data-side=collapsed] .side-top #sideBtn{margin-left:0}
:root[data-side=collapsed] .nav{padding:4px 10px;flex:1}
:root[data-side=collapsed] .nav-link{justify-content:center;padding:10px 0}
:root[data-side=collapsed] .side-foot{flex-direction:column;gap:6px;padding:12px 0}

/* Generated images (Nano Banana) in the chat */
.gen-image{margin:8px 0 12px;max-width:420px}
.gen-image img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--rule);background:var(--soft)}
.gen-image figcaption{display:flex;gap:12px;padding:6px 2px 0;font-size:12.5px}
.gen-image figcaption a{color:var(--ink-3);text-decoration:none}
.gen-image figcaption a:hover{color:var(--ink);text-decoration:underline}
.gen-image.loading{aspect-ratio:1/1;max-width:320px;border-radius:12px;display:grid;place-items:center;font-size:13px;color:var(--ink-3);background:var(--soft);animation:breathe 1.6s ease-in-out infinite}

/* Image attachments: thumbnails above the input while composing, a right-aligned grid in the thread */
.attach-btn{margin:3px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;flex:none;color:var(--ink-2)}
.attach-btn:hover{background:var(--soft-2)}
.attach-btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8}
.attach-row{flex:0 0 100%;display:flex;flex-wrap:wrap;gap:8px;padding:6px 6px 4px}
.attach-row[hidden]{display:none}
.attach{position:relative;width:64px;height:64px}
.attach img{width:100%;height:100%;object-fit:cover;border-radius:12px;border:1px solid var(--rule);cursor:zoom-in;display:block}
.attach.uploading img{opacity:.45}
.attach-x{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:var(--ink);color:var(--bg);font-size:14px;line-height:1;display:grid;place-items:center;box-shadow:0 0 0 2px var(--bg)}
.cbox.drop{box-shadow:inset 0 0 0 2px var(--accent), var(--shadow)}
.turn.chat-user{flex-direction:column;align-items:flex-end;gap:6px}
.msg-images{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px;max-width:76%}
.msg-images img{height:132px;width:132px;object-fit:cover;border-radius:14px;border:1px solid var(--rule);background:var(--soft);cursor:zoom-in}
.msg-images.one img{width:auto;height:auto;max-width:300px;max-height:300px}
dialog.lightbox{border:none;background:none;padding:0;max-width:92vw;max-height:92vh;overflow:visible}
dialog.lightbox::backdrop{background:rgba(13,13,15,.8)}
dialog.lightbox img{display:block;max-width:92vw;max-height:92vh;border-radius:10px;cursor:zoom-out}

/* Pickers under the builder's chat box: design system on the left, model and mode on the right */
.composer-foot{display:flex;align-items:center;gap:2px;margin-top:6px;padding:0 4px;min-width:0}
/* In chat the footer lines up with the input box above it instead of spanning the whole page. */
.composer > .composer-foot{max-width:760px;margin-left:auto;margin-right:auto;padding:0 8px}
.composer-foot .relay-note{margin:0;padding-left:6px;max-width:none}
.foot-spacer{flex:1}
.foot-btn{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 8px;border-radius:8px;font-size:13px;color:var(--ink-2);white-space:nowrap;min-width:0}
.foot-btn:hover{background:var(--soft-2);color:var(--ink)}
.foot-btn.on{color:var(--ink)}
.foot-ico{display:grid;place-items:center;width:16px;height:16px;flex:none}
.foot-ico svg{width:16px;height:16px}
.foot-label{overflow:hidden;text-overflow:ellipsis;max-width:90px}
.foot-label:empty{display:none}
.foot-btn .chev{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;opacity:.7;flex:none}
.menu{position:fixed;z-index:60;min-width:230px;max-width:300px;overflow-y:auto;padding:6px;border-radius:14px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--rule-2), var(--shadow)}
.menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border-radius:9px;text-align:left;color:var(--ink)}
.menu-item:hover{background:var(--soft-2)}
.menu-ico{display:grid;place-items:center;width:20px;height:20px;flex:none;font-size:13px;font-weight:600;color:var(--ink-2)}
.menu-ico svg{width:18px;height:18px}
.menu-text{display:flex;flex-direction:column;min-width:0;flex:1}
.menu-label{font-size:14px;font-weight:500}
.menu-sub{font-size:12px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.menu-check{width:16px;height:16px;flex:none;color:var(--accent)}
.menu-check svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2}

/* App info panel */
.info-head{display:flex;align-items:center;gap:14px;padding-right:30px}
.info-mark{width:48px;height:48px;border-radius:13px;font-size:20px}
.info-title h3{margin:0 0 5px;font-size:19px}
.info-tags{display:flex;gap:6px}
.info-desc{margin:14px 0 0;font-size:14px;line-height:1.55;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;cursor:pointer}
.info-desc.open{display:block}
.info-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0 14px}
.info-stat{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 14px;border-radius:12px;background:var(--soft);text-align:left;transition:background .12s}
.info-stat:hover{background:var(--soft-2)}
.info-stat-k{font-size:11.5px;font-weight:500;color:var(--ink-3);letter-spacing:.02em}
.info-stat-v{font-size:17px;font-weight:600;color:var(--ink-3)}
.info-stat-v.on{color:var(--ink)}
.info-card{padding:6px 16px;border-radius:14px;box-shadow:inset 0 0 0 1px var(--rule)}
.info-empty{display:flex;flex-direction:column;gap:3px;align-items:center;text-align:center;padding:34px 12px;font-size:13.5px;color:var(--ink-3)}
.info-empty strong{font-size:15px;color:var(--ink);font-weight:500}
.info-row-status{display:flex;align-items:center;gap:8px}
.info-row-status form{margin:0}
.info-row-status .btn{padding:5px 12px;font-size:13px}
.info-card h4{margin:0 0 8px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}
.info-count{font-weight:500;font-size:12px;color:var(--ink-3);background:var(--soft-2);border-radius:999px;padding:0 7px}
.info-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--rule)}
.info-row:first-child{border-top:none}
.info-row-main{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1;font-size:14px}
.info-row-main strong{font-weight:500}
.info-icon .svc-icon{width:30px;height:30px;border-radius:9px}
.info-sub{font-size:12.5px;color:var(--ink-3);line-height:1.45}
.info-text{margin:0 0 10px;font-size:14px;color:var(--ink-2)}
.info-none{margin:0;font-size:13.5px;color:var(--ink-3)}
.info-label{font-size:12px;color:var(--ink-3);margin-bottom:6px}
.info-chips{display:flex;flex-wrap:wrap;gap:5px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;border-radius:7px;background:var(--soft-2);color:var(--ink-2);font-family:var(--mono);font-size:11.5px}
.chip-domain{font-family:inherit;font-size:13px;padding:4px 10px 4px 7px;border-radius:999px;color:var(--ink)}
.chip-domain img{width:14px;height:14px;border-radius:3px}
.info-note{margin:12px 0 0;font-size:12px;line-height:1.5;color:var(--ink-3)}
.tag.warn{background:var(--bad-soft);color:var(--bad)}
@media (max-width:640px){
  .modal-tabs{overflow-x:auto;padding-right:48px}
  .modal-logout{display:none}
  .modal-body{padding:18px 16px}
}
.tag.free{background:var(--ok);color:var(--bg);font-weight:600;gap:4px;padding-left:7px}
.tag.free svg{width:11px;height:11px}
.info-free{display:flex;align-items:center;gap:12px;width:100%;margin-top:14px;padding:12px 14px;border-radius:14px;text-align:left;
  background:linear-gradient(135deg,var(--ok-soft),var(--accent-soft));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ok) 28%,transparent);transition:transform .12s}
.info-free:hover{transform:translateY(-1px)}
.info-free-ico{width:36px;height:36px;border-radius:50%;flex:none;display:grid;place-items:center;background:var(--ok);color:var(--bg)}
.info-free-ico svg{width:18px;height:18px}
.info-free-text{display:flex;flex-direction:column;gap:1px;font-size:13px;line-height:1.45;color:var(--ink-2)}
.info-free-text strong{font-size:14.5px;color:var(--ink)}
.free-hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:30px 24px 26px;border-radius:18px;
  background:radial-gradient(120% 90% at 50% 0%,var(--ok-soft),transparent 70%),var(--soft);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--ok) 22%,transparent)}
.free-hero-ico{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--ok);color:var(--bg);margin-bottom:14px;box-shadow:0 8px 24px color-mix(in srgb,var(--ok) 35%,transparent)}
.free-hero-ico svg{width:28px;height:28px}
.free-hero h4{margin:0 0 6px;font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.free-hero p{margin:0 0 16px;max-width:380px;font-size:14px;line-height:1.55;color:var(--ink-2)}
.free-hero-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;text-align:left}
.free-hero-list li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-2)}
.free-hero-list .tick{width:20px;height:20px;border-radius:50%;flex:none;display:grid;place-items:center;font-size:11px;font-weight:700;background:var(--ok-soft);color:var(--ok)}

/* ============ settings: usage ============ */
.settings-wrap{max-width:920px;margin:0 auto;padding:24px 28px 56px;overflow-y:auto;height:calc(100vh - 56px);width:100%}
.set-card{padding:20px 22px;border-radius:16px;box-shadow:inset 0 0 0 1px var(--rule);margin-bottom:16px}
.set-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px}
.set-head h2{margin:0;font-size:16px;letter-spacing:-.01em}
.set-sub{margin:3px 0 0;font-size:13px;color:var(--ink-3)}
.set-head-acts{display:flex;align-items:center;gap:10px}
.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.meter{padding:14px 16px;border-radius:12px;background:var(--soft);display:flex;flex-direction:column;gap:6px}
.meter-top{display:flex;justify-content:space-between;align-items:center}
.meter-k{font-size:12.5px;color:var(--ink-3);font-weight:500}
.meter-pct{font-size:12.5px;font-weight:600;color:var(--ink-2)}
.meter-pct.warn{color:#C97F00}.meter-pct.over{color:var(--bad)}
.meter-big{font-size:22px;font-weight:650;letter-spacing:-.02em}
.meter-of{font-size:13px;font-weight:500;color:var(--ink-3)}
.bar{height:8px;border-radius:999px;background:var(--soft-2);overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px;background:var(--accent);transition:width .4s ease}
.bar span.warn{background:#E0A100}.bar span.over{background:var(--bad)}
.meter-note{font-size:12px;color:var(--ink-3)}
.chart{position:relative}
.chart-empty{padding:60px 0;text-align:center;color:var(--ink-3);font-size:14px}
.plot{position:relative;height:240px;margin:6px 0 26px 38px}
.grid-line{position:absolute;left:0;right:0;border-top:1px dashed var(--rule)}
.grid-line span{position:absolute;left:-38px;top:-8px;width:32px;text-align:right;font-size:11px;color:var(--ink-3)}
.cols{position:absolute;inset:0;display:flex;align-items:flex-end;gap:3px}
.col{flex:1;height:100%;position:relative;display:flex;flex-direction:column;justify-content:flex-end;cursor:default}
.col:hover{background:var(--soft)}
.stack{display:flex;flex-direction:column-reverse;height:100%;width:100%}
.seg-bar:last-child{border-radius:4px 4px 0 0}
.seg-bar{display:block;width:100%;min-height:1px}
.xl{position:absolute;top:100%;left:50%;transform:translateX(-50%);margin-top:6px;font-size:11px;color:var(--ink-3);white-space:nowrap}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;padding-left:38px}
.lg{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2)}
.lg em{font-style:normal;color:var(--ink-3)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex:none}
.chart-tip{position:absolute;z-index:80;min-width:190px;padding:10px 12px;border-radius:12px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--rule-2),var(--shadow);font-size:12.5px;pointer-events:none}
.chart-tip[hidden]{display:none}
.tip-date{font-weight:600;margin-bottom:6px}
.tip-row{display:flex;align-items:center;gap:6px}.tip-row b{margin-left:auto;padding-left:14px}
.tip-sub{margin:1px 0 6px 14px;color:var(--ink-3);font-size:11.5px}
.set-table{width:100%;border-collapse:collapse;font-size:13.5px}
.set-table th{text-align:left;font-size:12px;font-weight:500;color:var(--ink-3);padding:6px 8px;border-bottom:1px solid var(--rule)}
.set-table td{padding:10px 8px;border-bottom:1px solid var(--rule)}
.set-table tr:last-child td{border-bottom:none}
.set-table .num{text-align:right;font-variant-numeric:tabular-nums}
.set-table td .dot{margin-right:8px}
.set-table td code{margin-left:8px;font-size:11.5px;color:var(--ink-3)}
@media (max-width:760px){.meters{grid-template-columns:1fr}.settings-wrap{padding:16px}}

/* app info: cost tab */
.cost-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cost-hero{padding:18px 20px;border-radius:14px;background:var(--soft);margin-bottom:14px}
.cost-hero.free{background:var(--ok-soft);color:var(--ok)}
.cost-big{font-size:34px;font-weight:700;letter-spacing:-.03em;color:var(--ink)}
.cost-hero.free .cost-big{color:var(--ok)}
.cost-sub{margin-top:2px;font-size:13px;color:var(--ink-3)}
.cost-hero.free .cost-sub{color:var(--ok)}
.cost-tokens{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.cost-tokens>div{padding:10px 14px;border-radius:12px;box-shadow:inset 0 0 0 1px var(--rule);display:flex;flex-direction:column;gap:2px}
.cost-tokens strong{font-size:17px;font-variant-numeric:tabular-nums}
.cost-amt{font-weight:600;font-size:14px;font-variant-numeric:tabular-nums;flex:none}

.info-model{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--ink-2)}

.design-note{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 4px 8px;padding:8px 10px 8px 14px;border-radius:12px;background:var(--accent-soft);color:var(--accent-ink);font-size:13px}
.design-note[hidden]{display:none}
.design-note .btn{padding:4px 12px;font-size:12.5px;flex:none}
.design-note .btn[hidden]{display:none}
.tg-link[hidden],#tg-btn[hidden]{display:none}
.tg-link{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin:12px 0}
.tg-link #tg-qr{width:160px;height:160px;border-radius:8px;overflow:hidden}
.tg-link #tg-qr svg{width:100%;height:100%;display:block}

/* ============ "Help me connect!" ============ */
.btn.magic{display:inline-flex;align-items:center;gap:7px;color:#fff;background:linear-gradient(135deg,var(--accent),#8b5cf6);box-shadow:none}
.btn.magic:hover{background:linear-gradient(135deg,var(--accent),#8b5cf6);filter:brightness(1.08)}
.btn.magic svg{width:15px;height:15px;flex:none}
.guide-banner{display:flex;align-items:center;gap:12px;margin:0 0 14px;padding:10px 14px;border-radius:12px;background:var(--accent-soft);color:var(--ink-2);font-size:13.5px}
.guide-banner[hidden]{display:none}
.guide-banner span{flex:1}
.dlg{position:relative;width:100%;max-width:460px;background:var(--bg);border-radius:18px;box-shadow:var(--shadow);padding:30px 30px 24px;text-align:center}
.dlg.creds{text-align:left}
.dlg h3{margin:0 0 8px;font-size:20px;letter-spacing:-.02em}
.dlg-text{margin:0 0 18px;color:var(--ink-2);font-size:14.5px;line-height:1.55}
.dlg-spark{width:44px;height:44px;margin:0 auto 12px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--accent),#8b5cf6)}
.dlg-spark svg{width:22px;height:22px}
.ext-card{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:14px;text-decoration:none;color:var(--ink);text-align:left;box-shadow:inset 0 0 0 1px var(--rule-2);transition:box-shadow .15s,background .15s}
.ext-card:hover{background:var(--soft);box-shadow:inset 0 0 0 1px var(--accent)}
.ext-card img{border-radius:10px;flex:none}
.ext-meta{display:flex;flex-direction:column;flex:1;min-width:0;font-size:12.5px;color:var(--ink-3)}
.ext-meta strong{font-size:14.5px;color:var(--ink);font-weight:600}
.ext-check{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;font-size:13px;color:var(--ink-3)}
.icon-btn{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;color:var(--ink-2)}
.icon-btn:hover{background:var(--soft-2);color:var(--ink)}
.icon-btn svg{width:16px;height:16px}
.icon-btn.spin svg{animation:aa-spin .8s linear infinite}
@keyframes aa-spin{to{transform:rotate(360deg)}}
.fld{display:block;margin:0 0 14px}
.fld span{display:block;margin-bottom:5px;font-size:13px;font-weight:500;color:var(--ink-2)}
.fld input{width:100%;padding:9px 12px;border-radius:10px;border:0;background:var(--soft);box-shadow:inset 0 0 0 1px var(--rule-2);font:inherit;font-size:14px;color:var(--ink)}
.fld input:focus{outline:none;box-shadow:inset 0 0 0 1px var(--accent)}
.fld small{display:block;margin-top:4px;font-size:12px;color:var(--ink-3)}
.dlg-error{margin:0 0 12px;padding:8px 12px;border-radius:10px;background:var(--bad-soft);color:var(--bad);font-size:13px}
.dlg-error[hidden]{display:none}
.dlg-acts{display:flex;align-items:center;gap:8px;margin-top:6px}
.dlg-acts .sp{flex:1}
@media (prefers-reduced-motion:reduce){.icon-btn.spin svg{animation:none}}

/* ============ sign-in page ============ */
.login-card{max-width:380px;width:calc(100% - 32px)}
.login-logo{border-radius:12px;margin-bottom:6px}
.login-error{margin:14px 0 0;padding:10px 12px;border-radius:10px;background:var(--bad-soft);color:var(--bad);font-size:13.5px;text-align:left}
.btn-continue{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:20px;padding:11px 18px;border-radius:10px;text-decoration:none;font-size:15px;font-weight:500;color:var(--ink);background:var(--bg);box-shadow:inset 0 0 0 1px var(--rule-2);transition:background .15s}
.btn-continue:hover{background:var(--soft)}
.btn-continue:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.login-dev{margin-top:18px;font-size:12.5px}
.login-dev a{color:var(--ink-3)}