/* ── MikroTik Manager — Shared Design System ── */
:root {
  --bg:       #f1f5f9;
  --surface:  #ffffff;
  --border:   #e2e8f0;
  --text:     #1e293b;
  --muted:    #64748b;
  --blue:     #3b82f6;
  --blue-dk:  #2563eb;
  --green:    #22c55e;
  --red:      #ef4444;
  --amber:    #f59e0b;
  --teal:     #14b8a6;
  --nav-bg:   #0f172a;
  --nav-text: #94a3b8;
  --radius:   10px;
  --sh:       0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --sh-md:    0 4px 12px rgba(0,0,0,.08);
  font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--text);line-height:1.5;}

/* Header / topbar */
.app-header{
  background:var(--nav-bg);
  padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;
  height:56px;
  box-shadow:0 2px 8px rgba(0,0,0,.25);
  position:sticky;top:0;z-index:200;
}
.app-header .brand{
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;gap:10px;
  text-decoration:none;
}
.app-header .brand i{color:var(--blue);}
.app-header nav{display:flex;gap:4px;align-items:center;}
.app-header nav a{
  color:var(--nav-text);text-decoration:none;
  padding:7px 13px;border-radius:6px;font-size:13.5px;
  display:flex;align-items:center;gap:6px;
  transition:background .15s,color .15s;
}
.app-header nav a:hover{background:rgba(255,255,255,.08);color:#fff;}
.app-header nav a.danger:hover{background:rgba(239,68,68,.15);color:#fca5a5;}
.app-header nav .sep{width:1px;height:24px;background:rgba(255,255,255,.1);margin:0 4px;}

/* Page wrap */
.page-wrap{max-width:1100px;margin:28px auto;padding:0 20px;}

/* Cards */
.card{
  background:var(--surface);border-radius:var(--radius);
  padding:24px 26px;margin-bottom:22px;
  box-shadow:var(--sh);border:1px solid var(--border);
}
.card h2{
  font-size:15px;font-weight:700;color:var(--text);
  padding-bottom:12px;margin-bottom:18px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
}
.card h2 i{color:var(--blue);}

/* Alerts */
.alert{
  padding:12px 16px;border-radius:8px;font-size:14px;
  display:flex;align-items:center;gap:10px;
  margin-bottom:18px;
}
.alert-success{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;}
.alert-error  {background:#fef2f2;border:1px solid #fecaca;color:#991b1b;}

/* Forms */
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:6px;}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;padding:9px 12px;
  border:1px solid var(--border);border-radius:7px;
  font-size:14px;color:var(--text);background:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(59,130,246,.12);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border:none;border-radius:7px;
  font-size:13.5px;font-weight:600;cursor:pointer;
  text-decoration:none;transition:opacity .15s,transform .1s;
}
.btn:hover{opacity:.88;transform:translateY(-1px);}
.btn:active{transform:none;}
.btn-primary{background:var(--blue);color:#fff;}
.btn-success{background:var(--green);color:#fff;}
.btn-danger {background:var(--red);color:#fff;}
.btn-warning{background:var(--amber);color:#1e293b;}
.btn-outline{background:transparent;color:var(--blue);border:1px solid var(--blue);}
.btn-sm{padding:5px 11px;font-size:12.5px;}

/* Tables */
.table{width:100%;border-collapse:collapse;}
.table th{
  padding:10px 13px;text-align:left;
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;
  color:var(--muted);background:#f8fafc;border-bottom:1px solid var(--border);
}
.table td{
  padding:11px 13px;font-size:13.5px;
  border-bottom:1px solid #f1f5f9;
  vertical-align:middle;
}
.table tbody tr:last-child td{border-bottom:none;}
.table tbody tr:hover td{background:#f8fafc;}

/* Badges */
.badge{
  display:inline-block;padding:2px 9px;border-radius:20px;
  font-size:11px;font-weight:700;
}
.badge-green {background:#dcfce7;color:#15803d;}
.badge-red   {background:#fee2e2;color:#b91c1c;}
.badge-blue  {background:#dbeafe;color:#1d4ed8;}
.badge-amber {background:#fef3c7;color:#b45309;}
.badge-gray  {background:#f1f5f9;color:#475569;}

/* Status dot */
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:5px;}
.dot-green{background:var(--green);box-shadow:0 0 6px var(--green);}
.dot-red  {background:var(--red);box-shadow:0 0 6px var(--red);}

/* Modal */
.modal-overlay{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.50);backdrop-filter:blur(3px);z-index:900;
}
.modal-box{
  background:#fff;border-radius:12px;padding:28px;
  width:90%;max-width:520px;
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  box-shadow:0 20px 50px rgba(0,0,0,.25);
  animation:modalIn .22s ease;
}
@keyframes modalIn{from{opacity:0;transform:translate(-50%,-56%)}to{opacity:1;transform:translate(-50%,-50%)}}
.modal-box h3{
  font-size:15px;font-weight:700;color:var(--text);
  padding-bottom:12px;margin-bottom:18px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
}
.modal-box h3 i{color:var(--blue);}
.modal-close{
  float:right;background:none;border:none;font-size:20px;
  cursor:pointer;color:var(--muted);line-height:1;
}
.modal-close:hover{color:var(--text);}

/* Stat grid */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin-bottom:22px;}
.stat-card{
  background:var(--surface);border-radius:var(--radius);
  padding:18px 20px;border:1px solid var(--border);
  box-shadow:var(--sh);
}
.stat-card .s-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;}
.stat-card .s-value{font-size:28px;font-weight:700;margin:4px 0 2px;color:var(--text);}
.stat-card .s-icon{font-size:18px;margin-bottom:8px;}

/* Connection status inline badge */
.conn-badge{
  display:none;padding:4px 10px;border-radius:5px;font-size:12px;font-weight:600;
}
.conn-ok  {background:#dcfce7;color:#15803d;display:inline-block;}
.conn-err {background:#fee2e2;color:#b91c1c;display:inline-block;}

/* Mobile */
@media(max-width:768px){
  .app-header{padding:0 14px;}
  .app-header nav a span{display:none;}
  .page-wrap{padding:0 12px;margin:14px auto;}
  .form-row{grid-template-columns:1fr;}
  .card{padding:16px;}
  .table{min-width:480px;font-size:13px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:480px){
  .stat-grid{grid-template-columns:1fr;}
}