:root{
  --bg:#07111f;
  --panel:#0d1b2e;
  --panel2:#10233b;
  --border:#1d3a5f;
  --text:#eaf1ff;
  --muted:#9fb2ca;
  --primary:#1786ff;
  --primary2:#0d6ed7;
  --danger:#d84a4a;
  --sidebar:250px;
}
*{box-sizing:border-box}
html,body{min-height:100%;margin:0}
body{font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}
a{color:inherit}

.sidebar-toggle{display:none}
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar);z-index:1000;
  display:flex;flex-direction:column;background:#0b192b;border-right:1px solid var(--border);
  box-shadow:8px 0 30px rgba(0,0,0,.18)
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 16px;border-bottom:1px solid var(--border)}
.brand-mark{width:43px;height:43px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--primary),#2c5cff);font-weight:800;color:#fff;box-shadow:0 8px 20px rgba(23,134,255,.22)}
.brand-copy{min-width:0}
.brand-copy strong{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-copy span{display:block;margin-top:3px;font-size:12px;color:var(--muted)}
.sidebar-nav{padding:16px 10px;display:flex;flex-direction:column;gap:7px}
.sidebar-nav a,.sidebar-bottom a{display:flex;align-items:center;gap:12px;min-height:46px;padding:11px 13px;border-radius:10px;text-decoration:none;color:#cfe0f6;font-weight:600;transition:.18s ease}
.sidebar-nav a:hover,.sidebar-nav a.active{background:#173654;color:#fff}
.sidebar-nav a.active{box-shadow:inset 3px 0 0 var(--primary)}
.nav-icon{width:22px;text-align:center;font-size:17px;flex:0 0 22px}
.sidebar-bottom{margin-top:auto;padding:12px 10px 18px;border-top:1px solid var(--border)}
.logout-link:hover{background:rgba(216,74,74,.16)!important;color:#ffaaaa!important}

.main-content{margin-left:var(--sidebar);min-height:100vh;width:calc(100% - var(--sidebar));padding:0 0 36px}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:28px}
h1{font-size:28px;margin:0 0 20px;line-height:1.2}
h2,h3,h4{margin-top:0}
.card{background:linear-gradient(180deg,#0f1e33,#0c192b);border:1px solid var(--border);border-radius:15px;padding:19px;margin:14px 0;box-shadow:0 10px 28px rgba(0,0,0,.12)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.big{font-size:30px;font-weight:800;margin-top:5px}
.muted{color:var(--muted)}
code{background:#081421;border:1px solid #1a3555;padding:2px 6px;border-radius:6px;color:#cfe4ff}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;background:var(--primary);color:#fff;border:0;border-radius:9px;padding:10px 15px;text-decoration:none;cursor:pointer;font-weight:700;transition:.18s ease}
.btn:hover{background:var(--primary2);transform:translateY(-1px)}
.danger{background:var(--danger)}
.danger:hover{background:#bd3c3c}
label{display:block;color:#dce9fa;font-size:13px;font-weight:700;margin-top:3px}
input,select{width:100%;min-height:43px;padding:10px 12px;border-radius:9px;border:1px solid #33506f;background:#081526;color:#fff;margin:7px 0 13px;outline:none}
input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,134,255,.13)}

.card[style*="overflow:auto"]{overflow:auto!important;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:12px 11px;border-bottom:1px solid #223b58;text-align:left;vertical-align:middle;word-break:break-word}
th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#9fbad7;background:#0a1728}
tr:last-child td{border-bottom:0}

.mobile-menu-btn{display:none}
.sidebar-overlay{display:none}

@media(max-width:900px){
  :root{--sidebar:245px}
  .sidebar{transform:translateX(-100%);transition:transform .22s ease}
  .main-content{margin-left:0;width:100%;padding-top:62px}
  .mobile-menu-btn{display:grid;place-items:center;position:fixed;left:14px;top:12px;z-index:1100;width:42px;height:40px;border-radius:10px;background:#10233b;border:1px solid #254767;color:#fff;font-size:22px;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.2)}
  .sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,.58);z-index:900}
  .sidebar-toggle:checked ~ .sidebar{transform:translateX(0)}
  .sidebar-toggle:checked ~ .sidebar-overlay{display:block}
  .wrap{padding:18px 14px 26px}
  h1{font-size:24px}
}

@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  .card{padding:15px;border-radius:13px}
  .big{font-size:26px}
  .btn{width:100%;margin:3px 0}
  td .btn,table .btn{width:auto;min-width:68px;margin:2px 1px}
  table{font-size:13px;min-width:620px}
  th,td{padding:10px 8px}
}