:root{font-family:Inter,Segoe UI,Arial,sans-serif;color:#20242a;background:#f5f6f8}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;flex-direction:column}
.topbar{height:58px;background:#fff;border-bottom:1px solid #e1e4e8;display:flex;align-items:center;justify-content:space-between;padding:0 22px}
.brand{font-weight:800;color:#17191c;text-decoration:none;letter-spacing:.3px}.brand span{font-weight:500;color:#69717d}
nav{display:flex;gap:16px}nav a,.small-link{color:#4d5968;text-decoration:none;font-size:14px}
.container{width:min(1120px,calc(100% - 28px));margin:28px auto;flex:1}
.auth-card{width:min(420px,100%);margin:9vh auto;background:#fff;border:1px solid #e0e4e8;border-radius:12px;padding:30px;box-shadow:0 6px 20px rgba(0,0,0,.04)}
h1{margin:0 0 8px;font-size:25px}label{display:block;font-size:13px;font-weight:700;margin:22px 0 7px}
input,textarea{width:100%;border:1px solid #cfd5dc;border-radius:8px;background:#fff;padding:12px;font:inherit;outline:none}
input:focus,textarea:focus{border-color:#7c8794;box-shadow:0 0 0 3px rgba(70,80,90,.08)}
button{border:0;border-radius:8px;padding:11px 15px;background:#22272e;color:#fff;font-weight:700;cursor:pointer}
form button{margin-top:14px;width:100%}.muted{color:#6b7480}.small{font-size:12px}.small-link{display:block;margin-top:18px}
.flash{padding:12px 14px;border-radius:8px;margin-bottom:15px;background:#fff4d6;border:1px solid #ecd99b;word-break:break-all}
.flash.error{background:#fff0f0;border-color:#e5b7b7}.flash.success{background:#eef9f0;border-color:#b9dbbf}
.chat-shell{background:#fff;border:1px solid #e0e4e8;border-radius:12px;overflow:hidden;max-width:900px;margin:auto}
.chat-head{padding:20px;border-bottom:1px solid #e6e8eb}.messages{height:calc(100vh - 270px);min-height:420px;overflow:auto;padding:20px}
.msg{max-width:86%;padding:12px 14px;border-radius:10px;margin:0 0 12px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}
.msg b{display:block;font-size:12px;margin-bottom:5px;color:#626b76}.msg.user{margin-left:auto;background:#eef1f4}.msg.assistant{background:#f8f9fa;border:1px solid #e5e7ea}
.composer{display:flex;gap:10px;padding:15px;border-top:1px solid #e6e8eb}.composer textarea{min-height:52px;max-height:160px;resize:vertical}.composer button{width:110px;height:46px;margin:0;align-self:end}
.admin-grid{display:grid;gap:18px}.panel{background:#fff;border:1px solid #e0e4e8;border-radius:12px;padding:20px}.panel-title{display:flex;align-items:start;justify-content:space-between;gap:15px}.inline-form{display:flex;gap:10px}.inline-form input{max-width:360px}.inline-form button{margin:0;white-space:nowrap}.secondary{background:#69717d;padding:7px 10px;margin:0;width:auto}.danger{background:#8b2e2e;padding:8px 12px;width:auto;margin:0}
.table-wrap{overflow:auto;margin-top:15px}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;border-bottom:1px solid #edf0f2;padding:10px;vertical-align:top}th{font-size:12px;color:#626b76}.query{min-width:300px;max-width:550px;white-space:pre-wrap;overflow-wrap:anywhere}code{font-size:12px}
footer{text-align:center;color:#8a929d;font-size:12px;padding:18px}
@media(max-width:700px){.topbar{padding:0 14px}.container{width:calc(100% - 18px);margin:18px auto}.auth-card{padding:22px;margin-top:6vh}.messages{height:calc(100vh - 250px);padding:12px}.msg{max-width:94%}.composer{flex-direction:column}.composer button{width:100%}.inline-form{flex-direction:column}.inline-form input{max-width:none}.panel{padding:14px}}