:root{
  --bg:#f4f6fa;--surface:#fff;--surface-2:#f8fafc;--border:#e3e8ef;--text:#0f172a;--muted:#64748b;
  --primary:#2563eb;--primary-600:#1d4ed8;--primary-50:#eff6ff;--ok:#16a34a;--ok-50:#dcfce7;--bad:#dc2626;--bad-50:#fee2e2;
  --warn:#d97706;--warn-50:#fef3c7;--side:#0f172a;--side-text:#cbd5e1;--radius:10px;--shadow:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}
h1{font-size:1.4rem;margin:0}
h2{font-size:1.05rem;margin:0 0 12px}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}

.layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:var(--side);color:var(--side-text);padding:20px 14px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.05rem;padding:4px 8px 20px}
.brand svg{width:28px;height:28px}
.nav a{display:flex;align-items:center;gap:10px;color:var(--side-text);padding:9px 12px;border-radius:8px;font-weight:500}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a.active{background:var(--primary);color:#fff}
.nav svg{width:18px;height:18px;flex:none}
.sidebar .user{margin-top:auto;border-top:1px solid rgba(255,255,255,.1);padding:14px 8px 0;font-size:.85rem}
.sidebar .user b{display:block;color:#fff}
.sidebar .user button{margin-top:8px;width:100%}

.main{padding:28px 32px;min-width:0}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.page-head p{margin:2px 0 0;color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.grid{display:grid;gap:16px}
.stats{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.stat .k{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-size:1.8rem;font-weight:700;margin-top:4px}
.two{grid-template-columns:1fr 1fr}

.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface);color:var(--text);
  padding:8px 14px;border-radius:8px;font:inherit;font-weight:600;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-600)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.danger{color:var(--bad);border-color:#fecaca}
.btn.danger.solid{background:var(--bad);color:#fff;border-color:var(--bad)}
.btn.sm{padding:5px 10px;font-size:.85rem}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--side-text)}

.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
th{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:var(--surface-2);font-weight:600}
tr:last-child td{border-bottom:0}
td .sub{color:var(--muted);font-size:.82rem}
.actions{display:flex;gap:6px;justify-content:flex-end}

.badge{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600;white-space:nowrap}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.badge.on{background:var(--ok-50);color:var(--ok)}
.badge.off{background:#f1f5f9;color:var(--muted)}
.badge.warn{background:var(--warn-50);color:var(--warn)}
.badge.bad{background:var(--bad-50);color:var(--bad)}
.badge.vpn{background:var(--primary-50);color:var(--primary)}

.toolbar{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap}
input,select,textarea{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-50);border-color:var(--primary)}
textarea{min-height:80px;resize:vertical}
label{display:block;font-weight:600;font-size:.85rem;margin-bottom:4px}
.form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.form .full{grid-column:1/-1}
.form fieldset{grid-column:1/-1;border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0}
.form legend{font-weight:700;padding:0 6px;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.hint{color:var(--muted);font-size:.8rem;margin-top:4px}
.search{max-width:280px}

.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);display:grid;place-items:center;padding:16px;z-index:50}
.modal{background:var(--surface);border-radius:14px;width:min(760px,100%);max-height:92vh;overflow:auto;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.modal header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal header h2{margin:0}
.modal .body{padding:20px}
.modal footer{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--border)}
.x{background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--muted)}

.toast{position:fixed;right:20px;bottom:20px;background:var(--text);color:#fff;padding:12px 16px;border-radius:10px;box-shadow:var(--shadow);z-index:60;max-width:380px}
.toast.err{background:var(--bad)}
.empty{text-align:center;color:var(--muted);padding:32px}
.kv{display:grid;grid-template-columns:160px 1fr;gap:8px 16px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:500;word-break:break-word}
pre.code{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:10px;overflow:auto;font-size:.85rem;margin:0}
.link-box{display:flex;gap:8px;align-items:center;background:var(--primary-50);border:1px solid #bfdbfe;border-radius:10px;padding:10px 12px;flex-wrap:wrap}
.link-box a{font-family:ui-monospace,monospace;font-weight:600;word-break:break-all;flex:1;min-width:200px}
.vpn-panel{display:flex;flex-direction:column;gap:12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.muted{color:var(--muted)}
.alert{padding:10px 14px;border-radius:8px;background:var(--warn-50);color:#92400e;font-size:.9rem}
.alert.err{background:var(--bad-50);color:#991b1b}

/* Login */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:16px;background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.login{width:min(400px,100%);background:var(--surface);border-radius:16px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.login h1{margin:12px 0 4px}
.login p{color:var(--muted);margin:0 0 20px}
.login .field{margin-bottom:14px}
.login .btn{width:100%;justify-content:center;padding:11px}

.menu-btn{display:none}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;bottom:0;width:240px;z-index:40;transform:translateX(-100%);transition:transform .2s}
  .sidebar.open{transform:none}
  .main{padding:16px}
  .menu-btn{display:inline-flex}
  .two,.form,.form fieldset{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
  .kv dt{margin-top:6px}
}

/* --- Django --- */
.messages{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.msg{padding:10px 14px;border-radius:8px;background:var(--primary-50);color:#1e3a8a}
.msg.success{background:var(--ok-50);color:#14532d}
.msg.error{background:var(--bad-50);color:#991b1b}
.msg.warning{background:var(--warn-50);color:#92400e}
.errorlist{list-style:none;margin:4px 0 0;padding:0;color:var(--bad);font-size:.82rem}
.form-card{max-width:900px}
.form .check{display:flex;align-items:center;gap:8px}
.form .check input{width:auto}
form.inline{display:inline}
.sidebar form button{margin-top:8px;width:100%}
.form-row{display:grid;grid-template-columns:1fr 2fr auto;gap:10px;align-items:end}
@media (max-width:900px){.form-row{grid-template-columns:1fr}}
[hidden]{display:none!important}

.progress{height:10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);overflow:hidden}
.progress>div{height:100%;background:var(--primary);transition:width .4s}
.ota-form{display:grid;grid-template-columns:2fr 1fr auto;gap:10px;align-items:end}
@media (max-width:900px){.ota-form{grid-template-columns:1fr}}

/* Auditoría */
.tabs{display:flex;gap:4px;margin-bottom:-1px;position:relative;z-index:1}
.tabs a{padding:9px 16px;border:1px solid var(--border);border-bottom:0;border-radius:10px 10px 0 0;background:var(--surface-2);color:var(--muted);font-weight:600}
.tabs a.active{background:var(--surface);color:var(--text)}
.tabs + .card{border-top-left-radius:0}
.nowrap{white-space:nowrap}
table.auditoria td{font-size:.86rem;vertical-align:top}
table.auditoria td.payload{max-width:520px}
table.auditoria summary{cursor:pointer;word-break:break-all;list-style:none}
table.auditoria summary::-webkit-details-marker{display:none}
table.auditoria details[open] summary{color:var(--muted)}
table.auditoria pre.code{margin-top:8px;max-height:320px;white-space:pre-wrap;word-break:break-all}
tr.fila-rech td,tr.fila-neg td{background:var(--bad-50)}
tr.nueva td{animation:resaltar 2.5s ease-out}
@keyframes resaltar{from{background:#fef9c3}to{background:transparent}}
#vivo.activo{background:var(--bad);border-color:var(--bad);color:#fff}