:root{--g:#128c7e;--g2:#25d366;--bg:#f0f2f5;--card:#fff;--ink:#111b21;--mut:#667781;--line:#e9edef;--err:#c0392b;--errbg:#fdecea;--okbg:#e7f7ee}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}
a{color:var(--g)}
.wrap{display:flex;min-height:100vh}
.side{width:220px;background:#111b21;color:#e9edef;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .brand{padding:18px 16px;font-weight:700;font-size:17px;border-bottom:1px solid #2a3942}
.side nav{display:flex;flex-direction:column;padding:8px 0;flex:1}
.side nav a{color:#aebac1;text-decoration:none;padding:11px 16px;font-size:15px}
.side nav a:hover{background:#2a3942;color:#fff}
.side nav a.on{background:var(--g);color:#fff}
.side .logout{padding:12px 16px;border-top:1px solid #2a3942}
.side .logout button{background:none;border:1px solid #3b4a54;color:#aebac1;padding:8px 12px;border-radius:7px;cursor:pointer;width:100%}
.main{flex:1;padding:24px 28px;max-width:960px}
h1{margin:0 0 18px;font-size:24px}
h2{font-size:17px;margin:0 0 10px}
h3{font-size:14px;margin:18px 0 6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center;color:var(--mut);font-size:13px}
.stat span{display:block;font-size:28px;font-weight:700;color:var(--ink)}
label{display:block;margin:12px 0;font-size:13px;color:var(--mut);font-weight:600}
input,select,textarea{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid #d1d7db;border-radius:8px;font-size:14px;font-family:inherit;color:var(--ink);background:#fff}
textarea{resize:vertical}
label.check,label.radio{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink)}
label.check input,label.radio input{width:auto;margin:0}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.seg{display:flex;gap:18px;margin:14px 0;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #d1d7db;color:var(--ink);padding:10px 16px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:#f5f6f6}
.btn-primary{background:var(--g);border-color:var(--g);color:#fff}
.btn-primary:hover{background:#0f7d70}
.btn-danger{background:#fff;border-color:#e3b3ac;color:var(--err)}
.btn.small,.small{font-size:12px}
.btn-row{display:flex;gap:10px;align-items:center;margin-top:14px;flex-wrap:wrap}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--mut);font-size:12px;text-transform:uppercase;letter-spacing:.03em}
.muted{color:var(--mut)}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:700}
.b-ok{background:var(--okbg);color:#0a7a43}
.b-err{background:var(--errbg);color:var(--err)}
.b-warn{background:#fff6e0;color:#9a6b00}
.flash{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.ok{background:var(--okbg);color:#0a7a43}
.flash.err{background:var(--errbg);color:var(--err)}
.ok-text{color:#0a7a43}.err-text{color:var(--err)}
.code{background:#f0f2f5;border:1px solid var(--line);border-radius:6px;padding:2px 7px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;word-break:break-all}
.pre{background:#111b21;color:#d9fdd3;padding:14px;border-radius:9px;overflow-x:auto;font-size:12.5px;line-height:1.5}
.pager{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap}
.pager a{padding:6px 11px;border:1px solid var(--line);border-radius:7px;text-decoration:none}
.pager a.on{background:var(--g);color:#fff;border-color:var(--g)}
/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;width:340px;max-width:92vw;box-shadow:0 10px 40px rgba(0,0,0,.08)}
.login-card h1{text-align:center;font-size:20px}
@media(max-width:720px){.wrap{flex-direction:column}.side{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap}.side nav{flex-direction:row;flex-wrap:wrap}.row{grid-template-columns:1fr}.main{padding:18px}}