:root{--o:#ff5400;--o2:#f4691f;--navy:#2b3a4a;--bg:#d9eaf3;--ink:#1f2933;--mut:#7a8aa0;--y:#ffa400;--line:#e6edf3}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,"Segoe UI",Arial,sans-serif}
button,input,textarea{font:inherit}h1{font-size:26px;margin:0 0 6px}h3{margin:0 0 10px}a{color:var(--o)}
.topbar{height:64px;background:var(--o);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:3}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:20px}.mark{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#fff;color:var(--o)}
.pill{display:inline-block;font-size:12px;font-weight:700;background:#ffffff33;color:#fff;border-radius:99px;padding:4px 12px}
.shell{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 64px)}
nav{background:var(--navy);padding:14px 0}nav button{display:block;width:100%;text-align:left;background:none;border:0;border-bottom:2px solid var(--o);color:#fff;padding:14px 22px;cursor:pointer}nav button:hover,nav button.active{background:var(--o)}nav .quiet{border:0;color:#aab6c3;margin-top:10px}
main{padding:28px;min-width:0}.card{background:#fff;border-radius:6px;padding:20px;margin:16px 0;box-shadow:0 2px 8px #1e32501a;display:block}.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}.grid3 .card{margin:0}
.big{font-size:42px;font-weight:800;color:var(--o);margin:0}.muted{color:var(--mut);font-size:14px}.muted-w{color:#fff;opacity:.9}.neg{color:#b3261e}.pos{color:#17692f}
.btn{display:inline-block;background:var(--o);color:#fff;border:0;border-radius:4px;padding:11px 20px;font-weight:700;cursor:pointer;text-decoration:none}.btn:hover{background:#e04a00}.btn:disabled{opacity:.6}.btn.sm{padding:7px 14px;font-size:14px}.link{background:none;border:0;color:var(--mut);cursor:pointer;margin-left:auto}
label{display:block;margin-bottom:14px;font-weight:600;font-size:14px}input,textarea{display:block;width:100%;margin-top:6px;padding:10px;border:1px solid #cdd8e3;border-radius:4px}:focus-visible{outline:3px solid var(--y);outline-offset:2px}
.err{background:#fdeceb;color:#b3261e;padding:10px 14px;border-radius:4px}.row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}
.agent{text-align:center;border:0;cursor:pointer;color:inherit}.agent:hover{box-shadow:0 4px 14px #ff540040}.av{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--o);color:#fff;font-weight:800;font-size:22px}
.chat-head{display:flex;gap:12px;align-items:center;margin-bottom:12px}.chat-head h3{margin:0}.msgs{height:min(52vh,460px);overflow:auto;margin-bottom:12px}.m{padding:10px 14px;border-radius:6px;margin:8px 0;max-width:86%;overflow-wrap:anywhere}.m.user{background:var(--o);color:#fff;margin-left:auto}.m.assistant{background:#eef3f8}
.send{display:flex;gap:10px}.send input{margin:0}.bars{display:flex;gap:14px;align-items:flex-end;height:170px;padding-top:10px}.bar{flex:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px;font-size:12px;color:var(--mut)}.bar i{display:block;width:100%;max-width:48px;background:linear-gradient(var(--y),var(--o));border-radius:3px 3px 0 0}.bar b{color:var(--ink)}
.tk{padding:14px 0;border-bottom:1px solid var(--line)}.tm{margin:8px 0;padding:8px 12px;border-left:3px solid var(--line)}.tm.staff{border-color:var(--o);background:#fff7ef}.tm p{margin:2px 0 0}.rp{margin-top:8px}
.s-open{background:#ffe6d6;color:var(--o)}.s-answered{background:#fff1cc;color:#8a5a00}.s-closed{background:#e6f6ec;color:#17692f}.tk .pill{color:inherit}
details summary{cursor:pointer;font-weight:700}details p{margin:10px 0 0}
.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%,30px);background:var(--navy);color:#fff;padding:10px 18px;border-radius:6px;opacity:0;transition:.2s;pointer-events:none;z-index:9}.toast.show{opacity:1;transform:translate(-50%,0)}
body.guest{background:linear-gradient(135deg,#f6781f,#f43f1e)}body.guest .topbar{background:transparent}body.guest .shell{display:block}body.guest nav{display:none}
.auth{max-width:900px;margin:30px auto;display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;color:#fff}.auth-intro h1{font-size:46px}.auth-card{color:var(--ink)}
@media(max-width:760px){.shell{grid-template-columns:1fr}nav{display:flex;overflow:auto;padding:0}nav button{width:auto;white-space:nowrap;border:0}.auth{grid-template-columns:1fr;gap:20px}main{padding:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}