:root{
  --bg:#0d1117; --panel:#161b22; --panel2:#1c2330; --line:#2a3340;
  --txt:#e6edf3; --muted:#8b98a5; --brand:#2f81f7; --ok:#3fb950; --err:#f85149; --warn:#d29922;
}
*{box-sizing:border-box} html,body{margin:0}
body{background:var(--bg);color:var(--txt);font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;font-size:15px}
a{color:var(--brand);text-decoration:none}
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:#0b0f14;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:16px 0}
.brand{display:flex;gap:10px;align-items:center;font-weight:700;font-size:18px;padding:6px 18px 16px}
.brand i{color:var(--brand);font-size:22px} .brand small{color:var(--muted);font-weight:500;font-size:11px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;padding:0 10px;flex:1}
.sidebar nav a{color:var(--muted);padding:10px 12px;border-radius:8px;display:flex;gap:10px;align-items:center}
.sidebar nav a:hover{background:var(--panel);color:var(--txt)}
.sidebar nav a.active{background:var(--brand);color:#fff}
.sidebar .sep{height:1px;background:var(--line);margin:10px 6px}
.sidebar .foot{padding:12px 18px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
.content{flex:1;padding:26px 32px;max-width:1150px}
h1{margin:0 0 18px;font-size:26px} h2{font-size:18px;margin:0 0 12px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:18px}
.row{display:flex;gap:16px;flex-wrap:wrap} .row>.panel{flex:1;min-width:280px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.card .n{font-size:30px;font-weight:700} .card .l{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.4px}
.card.ok .n{color:var(--ok)} .card.warn .n{color:var(--warn)} .card.err .n{color:var(--err)}
label{display:block;margin:12px 0 4px;color:var(--muted);font-size:13px}
input,select,textarea{width:100%;background:var(--panel2);border:1px solid var(--line);color:var(--txt);border-radius:8px;padding:10px 12px;font-size:15px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.btn{background:var(--brand);color:#fff;border:none;border-radius:8px;padding:10px 16px;cursor:pointer;font-size:15px;display:inline-flex;gap:8px;align-items:center}
.btn:hover{filter:brightness(1.1)} .btn-sm{padding:6px 10px;font-size:13px}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn-ok{background:var(--ok)} .btn-warn{background:var(--warn);color:#1a1a1a} .btn-err{background:var(--err)}
table{width:100%;border-collapse:collapse} th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.badge{padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600;display:inline-block}
.b-ok{background:rgba(63,185,80,.15);color:var(--ok)} .b-err{background:rgba(248,81,73,.15);color:var(--err)}
.b-warn{background:rgba(210,153,34,.15);color:var(--warn)} .b-muted{background:var(--panel2);color:var(--muted)}
.clave{font-family:ui-monospace,Consolas,monospace;background:var(--panel2);padding:3px 8px;border-radius:6px;letter-spacing:1px}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px}
.alert.ok{background:rgba(63,185,80,.12);border:1px solid var(--ok)} .alert.err{background:rgba(248,81,73,.12);border:1px solid var(--err)}
.muted{color:var(--muted)} .right{text-align:right} small{color:var(--muted)}
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;width:100%}
.login-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:34px;width:360px}
.login-box .brand{justify-content:center;font-size:22px;padding-bottom:20px}
.inline{display:inline}