:root{
  --bg:#0e1117; --bg2:#151a23; --card:#171d27; --line:#242c3a; --fg:#e6ebf5; --fg2:#93a1b5;
  --accent:#4c8dff; --ok:#22c55e; --warn:#f59e0b; --err:#ef4444; --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);
  font:14px/1.6 -apple-system,"Segoe UI","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif}
.hidden{display:none!important}
h1,h2,h3{margin:0 0 .6em;font-weight:600}
h2{font-size:18px} h3{font-size:15px;color:var(--fg2);margin-top:18px}
a{color:var(--accent)}
code,pre{font-family:ui-monospace,Consolas,"Courier New",monospace}
.btn{background:#212a38;color:var(--fg);border:1px solid var(--line);border-radius:8px;
  padding:7px 13px;cursor:pointer;font-size:13px;transition:.15s}
.btn:hover{background:#2a3546;border-color:#3a4658}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:#3d7df0}
.btn.ghost{background:transparent}
.btn.danger,.btn.ghost.danger:hover{color:var(--err);border-color:#4a2020}
.btn.full{width:100%;padding:10px}
.btn.sm{padding:4px 9px;font-size:12px}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:34px 30px;
  width:340px;box-shadow:0 18px 50px rgba(0,0,0,.45)}
.login-card h1{font-size:20px;margin-bottom:2px}
.login-card .sub{color:var(--fg2);margin:0 0 22px;font-size:13px}
.login-card label{display:block;margin-bottom:14px;color:var(--fg2);font-size:13px}
input{width:100%;margin-top:6px;background:#0f141c;border:1px solid var(--line);color:var(--fg);
  border-radius:8px;padding:9px 11px;font-size:14px}
input:focus{outline:none;border-color:var(--accent)}
.err{color:var(--err);font-size:13px;min-height:18px;margin-top:8px}

/* layout */
header{display:flex;align-items:center;gap:22px;padding:12px 22px;background:var(--bg2);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.logo{background:linear-gradient(135deg,#4c8dff,#7c5cff);color:#fff;font-weight:700;border-radius:9px;
  padding:6px 9px;font-size:15px}
.brand b{display:block;font-size:15px}
.brand small{color:var(--fg2);font-size:12px}
nav{display:flex;gap:6px;margin-left:auto}
.tab{background:transparent;border:none;color:var(--fg2);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:14px}
.tab.active{background:#212a38;color:var(--fg)}
.hdr-right{display:flex;align-items:center;gap:10px}
.tip{color:var(--fg2);font-size:12px}
main{max-width:1180px;margin:0 auto;padding:22px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin:18px 0 12px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat b{display:block;font-size:22px;font-weight:700}
.stat span{color:var(--fg2);font-size:12px}

/* clients */
.clients{display:flex;flex-direction:column;gap:14px}
.client{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.client-head{display:flex;align-items:center;gap:12px;padding:13px 16px;flex-wrap:wrap}
.dot{width:9px;height:9px;border-radius:50%;background:#546274;flex:0 0 auto}
.dot.on{background:var(--ok);box-shadow:0 0 0 4px rgba(34,197,94,.15)}
.client-name{font-weight:600;font-size:15px}
.client-meta{color:var(--fg2);font-size:12px}
.spacer{flex:1}
.badge{background:#212a38;border:1px solid var(--line);border-radius:20px;padding:2px 9px;font-size:12px;color:var(--fg2)}
.code{font-family:ui-monospace,Consolas,monospace;letter-spacing:1px;color:#ffd479}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 16px;border-top:1px solid var(--line);font-size:13px;vertical-align:middle}
th{color:var(--fg2);font-weight:500;font-size:12px;background:#141922}
td.mono{font-family:ui-monospace,Consolas,monospace}
.url{color:#7ee0a8;word-break:break-all}
.switch{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-size:12px;color:var(--fg2)}
.empty{color:var(--fg2);padding:16px;font-size:13px;text-align:center}

/* logs */
.logs{background:#0b0f16;border:1px solid var(--line);border-radius:var(--radius);padding:14px;
  max-height:62vh;overflow:auto;font-size:12.5px;color:#c8d3e3;white-space:pre-wrap}
.panel-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
table.kv td{padding:7px 0;border:none}
table.kv td:first-child{color:var(--fg2);width:150px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(5,8,12,.7);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;width:520px;
  max-height:88vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-card h3{margin-top:0;color:var(--fg);font-size:17px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid label,.form-row label{display:block;color:var(--fg2);font-size:12.5px}
.form-row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.form-grid .full{grid-column:1/-1}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.hint{color:var(--fg2);font-size:12.5px;line-height:1.7}
pre.snippet{background:#0b0f16;border:1px solid var(--line);border-radius:8px;padding:11px;font-size:12px;
  overflow:auto;color:#9fe8bd;white-space:pre-wrap;word-break:break-all}
.steps{margin:10px 0 0;padding-left:18px;color:var(--fg2);font-size:13px}
.steps li{margin-bottom:5px}
.row-actions{display:flex;gap:6px}
@media(max-width:720px){
  header{flex-wrap:wrap;gap:10px} nav{order:3;width:100%;margin-left:0;overflow:auto}
  .form-grid{grid-template-columns:1fr}
  th,td{padding:8px 10px}
}