:root{--ind:#342CAC;--ind-d:#221C80;--amb:#FBAE40;--ink:#161E2D;--mut:#4A5368;--line:#E3E6EE;--bg:#F5F7FF;--soft:#ECEBFA;--warn:#FFF4DD;--bad:#FBEAEA;--good:#E6F5EE}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:Inter,system-ui,sans-serif;color:var(--ink);background:#fff;font-size:15px}
[hidden]{display:none!important}
.muted{color:var(--mut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
button{font:inherit;cursor:pointer}
svg{flex-shrink:0}
.btn-primary{height:48px;padding:0 20px;border:0;border-radius:10px;background:var(--ind);color:#fff;font-weight:600}
.btn-primary:hover{background:var(--ind-d)}.btn-primary:disabled{opacity:.55;cursor:wait}
.btn-primary.sm,.btn-ghost.sm{height:38px;padding:0 14px;font-size:14px}
.btn-outline{height:44px;border:1px solid var(--ind);border-radius:10px;background:#fff;color:var(--ind);font-weight:600}
.btn-ghost{height:40px;padding:0 14px;border:1px solid #C9CCDA;border-radius:10px;background:#fff;color:var(--ink);font-size:14px}
.btn-amber{height:40px;padding:0 14px;border:0;border-radius:10px;background:var(--warn);color:#3D3420;font-size:14px;font-weight:600}
.link{border:0;background:none;color:var(--ind);font-weight:600;font-size:14px;padding:8px}
/* login */
.login{min-height:100vh;display:flex;flex-wrap:wrap;background:var(--bg)}
.login-brand{flex:1 1 440px;background:var(--ind);color:#fff;padding:56px 64px;display:flex;flex-direction:column;justify-content:space-between;gap:40px}
.brand{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;letter-spacing:.12em}
.login-hero{display:flex;flex-direction:column;gap:18px;max-width:520px}
.kicker{font-size:14px;font-weight:600;color:var(--amb);letter-spacing:.08em}
.login-hero h1{margin:0;font-size:52px;line-height:1.1}
.login-hero p{margin:0;font-size:20px;line-height:1.5;color:#D9D7F5}
.login-facts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:14px;color:#D9D7F5}
.login-facts li{display:flex;gap:10px;align-items:center}
.login-facts svg{width:18px;height:18px;fill:none;stroke:var(--amb);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.login-form-wrap{flex:1 1 440px;display:flex;align-items:center;justify-content:center;padding:56px 24px}
.login-form{width:100%;max-width:420px;display:flex;flex-direction:column;gap:10px}
.login-form h2{margin:0 0 6px;font-size:30px}.login-form p{margin:0 0 14px}
.login-form label{font-size:14px;font-weight:600;margin-top:8px}
.login-form input{height:48px;padding:0 16px;font:inherit;font-size:16px;border:1px solid #C9CCDA;border-radius:10px;background:#fff;color:var(--ink)}
.login-form .btn-primary{margin-top:16px;height:52px;font-size:17px}
.err{color:#B3261E;font-size:14px;min-height:20px;margin:4px 0}
.notice{display:flex;gap:12px;padding:16px;border-radius:12px;background:var(--warn);font-size:14px;line-height:1.5;color:#3D3420}
.notice svg{width:20px;height:20px;fill:none;stroke:#8A5A00;stroke-width:2;stroke-linecap:round;margin-top:2px}
/* app */
.app{height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:10px 20px;border-bottom:1px solid var(--line)}
.tb-brand{display:flex;align-items:center;gap:10px;flex-grow:1;font-size:17px}.tb-brand span{font-size:13px}
.seg{display:flex;padding:4px;gap:4px;background:#F1F2F8;border-radius:10px}
.seg button{height:36px;padding:0 14px;border:0;border-radius:8px;background:transparent;font-size:14px;color:var(--mut)}
.seg button[aria-pressed=true]{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 2px rgba(22,30,45,.12)}
.usage{display:flex;flex-direction:column;gap:4px;min-width:180px;font-size:12px;color:var(--mut)}
.bar{height:6px;border-radius:3px;background:var(--line)}.bar div{height:6px;border-radius:3px;background:var(--ind);width:0;transition:width .3s}
.menu-btn{display:none}
.body{flex:1;display:flex;min-height:0}
.side{width:290px;flex-shrink:0;padding:18px 14px;background:var(--bg);overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.side h3{margin:14px 12px 4px;font-size:12px;letter-spacing:.08em;color:var(--mut)}
.mission{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 12px;border:0;border-radius:10px;background:transparent;color:var(--ink);text-align:left}
.mission:hover{background:var(--soft)}
.mission b{font-size:15px;font-weight:600}.mission small{font-size:13px;color:var(--mut)}
.mission.active{background:var(--ind);color:#fff}.mission.active small{color:#D9D7F5}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.mhead{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:14px 28px;border-bottom:1px solid var(--line)}
.mhead-text{flex:1;min-width:260px}.mhead h1{margin:0;font-size:18px}.mhead p{margin:2px 0 0;font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.instr{padding:14px 28px;border-bottom:1px solid var(--line);background:var(--bg);display:flex;flex-direction:column;gap:8px}
.instr label{font-size:13px;font-weight:600}.instr textarea{font:inherit;font-size:14px;padding:10px;border:1px solid #C9CCDA;border-radius:10px;resize:vertical}
.row{display:flex;gap:8px}
.msgs{flex:1;overflow-y:auto;padding:24px 28px;display:flex;flex-direction:column;gap:20px}
.msgs>*{max-width:920px;width:100%}
.empty{margin:auto;text-align:center;color:var(--mut);max-width:520px}
.empty h2{color:var(--ink);font-size:22px;margin:0 0 8px}
.suggest{margin-top:16px;display:inline-block;text-align:left;padding:12px 16px;border:1px dashed #C9CCDA;border-radius:12px;background:#fff;color:var(--ink);font-size:14px;line-height:1.5}
.u{align-self:flex-end;display:flex;flex-direction:column;gap:8px;align-items:flex-end;max-width:680px!important}
.u .bubble{padding:12px 16px;border-radius:16px 16px 4px 16px;background:var(--soft);line-height:1.55;white-space:pre-wrap;word-break:break-word}
.chip{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fff}
.chip svg{width:16px;height:16px;fill:none;stroke:#1E7A4F;stroke-width:2}
.chip button{border:0;background:none;color:var(--mut);padding:0 2px;font-size:16px;line-height:1}
.a{display:flex;gap:14px;align-items:flex-start}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--ind);display:flex;align-items:center;justify-content:center}
.avatar svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round}
.a .content{flex:1;min-width:0;line-height:1.6}
.content>:first-child{margin-top:0}.content p{margin:0 0 10px}
.content table{border-collapse:collapse;font-size:14px;margin:8px 0 12px;display:block;overflow-x:auto;max-width:100%}
.content th,.content td{border:1px solid var(--line);padding:7px 10px;text-align:left;vertical-align:top}
.content th{background:var(--bg)}
.content pre{background:#161E2D;color:#E8E9F5;padding:12px 14px;border-radius:10px;overflow-x:auto;font-family:'JetBrains Mono',monospace;font-size:13px}
.content code{font-family:'JetBrains Mono',monospace;font-size:13px;background:#F1F2F8;padding:1px 5px;border-radius:5px}.content pre code{background:none;padding:0}
.meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--mut);margin-top:6px}
.meta button{border:0;background:none;color:var(--ind);font-size:13px;font-weight:600;padding:2px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ind);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.3}}
.guard{display:flex;gap:10px;padding:12px 14px;border-radius:12px;font-size:14px;line-height:1.5;margin-bottom:10px}
.guard.mask{background:var(--warn);color:#3D3420}.guard.block{background:var(--bad);color:#5C1A16}
.guard svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;margin-top:1px}
.errbox{background:var(--bad);color:#5C1A16;padding:10px 14px;border-radius:10px;font-size:14px}
.composer-wrap{padding:12px 28px 18px;max-width:976px;width:100%}
.attachments{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.attachments:empty{display:none}
.composer{display:flex;align-items:flex-end;gap:10px;padding:10px;border:1px solid #C9CCDA;border-radius:14px;background:#fff}
.composer:focus-within{border-color:var(--ind)}
.composer textarea{flex:1;border:0;resize:none;font:inherit;font-size:15px;line-height:1.5;outline:none;max-height:220px;padding:10px 4px}
.icon-btn{width:44px;height:44px;border:0;border-radius:10px;background:#F1F2F8;display:flex;align-items:center;justify-content:center}
.icon-btn svg{width:20px;height:20px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.composer .btn-primary{height:44px}
.hint{font-size:12px;margin:8px 0 0}
@media (max-width:820px){
  .menu-btn{display:inline-block}
  .side{position:fixed;inset:0 auto 0 0;z-index:5;box-shadow:4px 0 20px rgba(0,0,0,.15);transform:translateX(-100%);transition:transform .2s}
  .side.open{transform:none}
  .usage,#who{display:none}
  .msgs,.mhead,.composer-wrap,.instr{padding-left:16px;padding-right:16px}
  .login-brand{padding:32px 24px}
}

/* v2: welcome, steps, chips, checks */
.btn-ghost.dl{display:inline-flex;align-items:center;text-decoration:none}
.welcome{margin:auto;max-width:720px;display:flex;flex-direction:column;gap:22px;padding:12px 0}
.welcome .kick{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--ind)}
.welcome h2{margin:0;font-size:30px;line-height:1.2}
.welcome p{margin:0;font-size:17px;line-height:1.55;color:var(--mut)}
.wsteps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.wstep{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:12px;background:var(--bg);border:0;text-align:left;color:var(--ink)}
.wstep:hover{background:var(--soft)}
.num{width:30px;height:30px;border-radius:50%;background:var(--ind);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex-shrink:0}
.num.done{background:#1E7A4F}
.wstep b{display:block;font-size:15px}.wstep small{font-size:13px;color:var(--mut)}
.rules{display:flex;flex-wrap:wrap;gap:8px}.rules span{padding:8px 12px;border-radius:999px;background:var(--warn);font-size:14px;color:#3D3420}
.btn-primary.big{height:54px;font-size:17px;align-self:flex-start;padding:0 28px}
.mission{flex-direction:row;align-items:center;gap:10px}
.mission .mt{display:flex;flex-direction:column;gap:2px}
.mission.active .num{background:#fff;color:var(--ind)}
.mission .pct{margin-left:auto;font-size:12px;font-weight:600;color:#1E7A4F}
.mission.active .pct{color:#C9F2DC}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 28px;max-width:976px}
.chips:empty{display:none}
.chips span{font-size:12px;font-weight:600;color:var(--mut);align-self:center;margin-right:2px}
.chips button{height:34px;padding:0 12px;border:1px solid #C9CCDA;border-radius:999px;background:#fff;font-size:13px;color:var(--ink)}
.chips button:hover{border-color:var(--ind);color:var(--ind)}
.checkbtn{border:1px solid var(--ind)!important;border-radius:8px;padding:4px 10px!important;color:var(--ind)}
.check{margin-top:12px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#fff}
.check h4{margin:0 0 10px;font-size:15px;display:flex;gap:10px;align-items:center}
.check .score{padding:3px 10px;border-radius:999px;background:var(--soft);color:var(--ind);font-size:13px}
.check .score.good{background:var(--good);color:#1E7A4F}
.check ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.check li{display:flex;gap:10px;font-size:14px;line-height:1.45}
.check li .ic{width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}
.check li.ok .ic{background:var(--good);color:#1E7A4F}.check li.no .ic{background:var(--bad);color:#B3261E}
.check li small{display:block;color:var(--mut)}
.check .tip{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--warn);font-size:14px;color:#3D3420}
.check .tip button{margin-left:6px;border:0;background:none;color:var(--ind);font-weight:600;font-size:14px;text-decoration:underline}
.nofile{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:12px 14px;border-radius:12px;background:var(--warn);color:#3D3420;font-size:14px}
.nofile button{height:36px;padding:0 12px;border-radius:8px;border:0;background:var(--ind);color:#fff;font-weight:600;font-size:14px}
.nofile button.alt{background:#fff;color:var(--ink);border:1px solid #C9CCDA}
@media (max-width:820px){.wsteps{grid-template-columns:1fr}.chips{padding:0 16px}}

.strip{list-style:none;margin:0;padding:10px 28px;display:flex;flex-wrap:wrap;gap:8px 18px;border-bottom:1px solid var(--line);background:#fff}
.strip li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--mut)}
.strip li span{width:24px;height:24px;border-radius:50%;background:#F1F2F8;color:var(--mut);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.strip li.now{color:var(--ink);font-weight:600}.strip li.now span{background:var(--amb);color:var(--ink)}
.strip li.done span{background:#1E7A4F;color:#fff}
.composer textarea::placeholder{color:#8A90A2}

.check h5{margin:14px 0 8px;font-size:14px;color:#8A5A00}
.check li.warn .ic{background:var(--warn);color:#8A5A00}

.learn{padding:10px 28px;background:var(--soft);font-size:14px;color:var(--ink);border-bottom:1px solid var(--line)}
.learn strong{color:var(--ind)}
.check .score.bad{background:var(--warn);color:#8A5A00}
@media (max-width:820px){.learn{padding:10px 16px}}

.agentlinks{margin-top:18px}.agentlinks a.mission{text-decoration:none;color:inherit}