:root{
  color-scheme:dark;
  --bg:#070b12;
  --panel:#101722;
  --panel-2:#151e2c;
  --line:#243044;
  --text:#eef4ff;
  --muted:#91a0b7;
  --accent:#42c7ff;
  --accent-2:#6f7cff;
  --success:#37d69a;
  --danger:#ff667a;
  --warning:#ffc857;
  --shadow:0 24px 70px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 12% 0%,rgba(66,199,255,.12),transparent 32rem),
    radial-gradient(circle at 95% 8%,rgba(111,124,255,.12),transparent 30rem),
    var(--bg);
}
button,input,select{font:inherit}
a{color:inherit}
.container{width:min(1220px,calc(100% - 32px));margin:0 auto;padding:34px 0 56px}
.admin-header{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin-bottom:22px
}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{
  display:grid;place-items:center;width:48px;height:48px;border-radius:16px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#06101c;font-weight:900;box-shadow:0 12px 30px rgba(66,199,255,.2)
}
.brand h1{font-size:25px;margin:0;letter-spacing:-.03em}
.brand p{margin:4px 0 0;color:var(--muted);font-size:13px}
.logout-link{
  text-decoration:none;color:var(--muted);padding:10px 14px;
  border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.025)
}
.logout-link:hover{color:var(--text);border-color:#3a4b67}
.nav-links{
  display:flex;gap:8px;padding:7px;margin:0 0 22px;
  border:1px solid var(--line);border-radius:16px;background:rgba(16,23,34,.86);
  box-shadow:var(--shadow);position:sticky;top:12px;z-index:20;
  backdrop-filter:blur(18px)
}
.nav-link{
  border:0;background:transparent;color:var(--muted);padding:11px 16px;
  border-radius:11px;cursor:pointer;font-weight:700
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.045)}
.nav-link.active{
  color:#06101c;background:linear-gradient(135deg,var(--accent),#79dcff)
}
.tab{display:none}
.toolbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;margin-bottom:18px
}
.toolbar-group{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.btn,.copy-btn,.delete-btn{
  border:1px solid var(--line);border-radius:11px;padding:9px 12px;
  cursor:pointer;font-weight:750;transition:.18s ease
}
.btn{
  color:#07111d;border-color:transparent;
  background:linear-gradient(135deg,var(--accent),#76ddff)
}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.copy-btn{background:#1a2433;color:var(--text)}
.copy-btn:hover{background:#223047;border-color:#3b506f}
.delete-btn{background:rgba(255,102,122,.12);color:#ff8b9b;border-color:rgba(255,102,122,.25)}
.delete-btn:hover{background:#ff667a;color:#17060a}
select,.search-input{
  color:var(--text);background:#0c131e;border:1px solid var(--line);
  border-radius:11px;padding:10px 12px;outline:none
}
.search-input{width:min(330px,100%)}
select:focus,.search-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(66,199,255,.11)}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin:0 0 22px
}
.stat-card{
  padding:17px;border:1px solid var(--line);border-radius:16px;
  background:linear-gradient(145deg,rgba(21,30,44,.95),rgba(12,18,28,.95))
}
.stat-label{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.stat-value{display:block;margin-top:7px;font-size:26px;font-weight:850}
.section-card{
  overflow:hidden;border:1px solid var(--line);border-radius:18px;
  background:rgba(16,23,34,.9);box-shadow:var(--shadow)
}
.section-title{margin:0;padding:18px 20px;border-bottom:1px solid var(--line);font-size:17px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:13px 15px;text-align:left;border-bottom:1px solid rgba(36,48,68,.78);white-space:nowrap}
th{
  color:#91a9c9;background:#151e2c;font-size:11px;
  text-transform:uppercase;letter-spacing:.075em
}
tbody tr:hover{background:rgba(66,199,255,.035)}
tbody tr:last-child td{border-bottom:0}
code{
  color:#bcecff;background:#09121d;border:1px solid #1d3347;
  padding:4px 7px;border-radius:7px
}
.status{display:inline-flex;align-items:center;gap:5px;font-weight:700}
.status.active{color:var(--success)}
.status.used{color:#b8c5d8}
.status.expired{color:var(--danger)}
.actions{display:flex;gap:6px;align-items:center}
.protected-badge{
  display:inline-flex;align-items:center;padding:8px 10px;border-radius:10px;
  color:var(--warning);background:rgba(255,200,87,.09);
  border:1px solid rgba(255,200,87,.2);font-size:12px;font-weight:750
}
.empty-state{padding:28px;text-align:center;color:var(--muted)}
.toast,.success-box{
  position:fixed;right:20px;top:20px;z-index:9999;color:#fff;
  padding:13px 17px;border-radius:13px;box-shadow:0 18px 45px rgba(0,0,0,.5)
}
.toast{opacity:0;transform:translateY(-10px);pointer-events:none;transition:.25s ease}
.toast.show{opacity:1;transform:none}
.toast.success,.success-box{background:linear-gradient(135deg,#20b978,#37d69a)}
.toast.error{background:linear-gradient(135deg,#e63f58,#ff667a)}
.success-box{z-index:9998;max-width:min(520px,calc(100% - 40px))}
@media(max-width:820px){
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .admin-header{align-items:flex-start}
}
@media(max-width:620px){
  .container{width:min(100% - 20px,1220px);padding-top:20px}
  .brand p{display:none}
  .nav-links{overflow:auto;top:7px}
  .nav-link{white-space:nowrap}
  .stats-grid{grid-template-columns:1fr 1fr}
  .toolbar{align-items:stretch}
  .toolbar-group,.search-input{width:100%}
  .toolbar-group>*{flex:1}
  th,td{padding:11px 12px}
  .actions{min-width:235px}
}