:root{--bg:#0b1220;--bg-elevated:#111827;--bg-card:#151f32;--border:#243044;--text:#e8eef9;--muted:#8b9bb8;--primary:#3b82f6;--primary-hover:#2563eb;--success:#22c55e;--danger:#ef4444;--radius:12px;--shadow:0 10px 40px rgba(0,0,0,.35);--font:"Segoe UI",system-ui,-apple-system,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,#1a2a4a 0%,transparent 50%),var(--bg);color:var(--text)}
button,input,select{font:inherit}.hidden{display:none!important}
.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:100%;max-width:420px;background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.brand-mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#3b82f6,#06b6d4);display:grid;place-items:center;font-weight:800;color:#fff}
.login-card h1{font-size:1.5rem;margin-bottom:4px}.login-card .subtitle{color:var(--muted);margin-bottom:24px;font-size:.95rem}
.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;color:var(--muted);font-size:.85rem}
.form-group input,.form-group select{width:100%;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:12px 14px;outline:none}
.form-group input:focus,.form-group select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,130,246,.2)}
.btn{border:none;border-radius:10px;padding:11px 16px;cursor:pointer;font-weight:600;transition:.15s}.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--bg-elevated)}
.btn-sm{padding:7px 10px;font-size:.85rem}.btn-block{width:100%}
.alert{border-radius:10px;padding:10px 12px;margin-bottom:14px;font-size:.9rem}
.alert-error{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);color:#fecaca}
.alert-success{background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#bbf7d0}
.app-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}
.sidebar{background:rgba(17,24,39,.92);border-right:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column;gap:8px;position:sticky;top:0;height:100vh}
.sidebar .brand{padding:8px 10px 18px}
.nav-item{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;color:var(--muted);cursor:pointer;border:none;background:transparent;text-align:left;width:100%}
.nav-item:hover,.nav-item.active{background:rgba(59,130,246,.12);color:var(--text)}
.sidebar-footer{margin-top:auto;padding:12px 8px;border-top:1px solid var(--border)}
.user-chip{font-size:.85rem;color:var(--muted);margin-bottom:10px}
.main{padding:24px;max-width:1200px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}
.topbar h2{font-size:1.45rem}.topbar p{color:var(--muted);font-size:.9rem;margin-top:4px}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:22px}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.stat-card .label{color:var(--muted);font-size:.8rem;margin-bottom:8px}.stat-card .value{font-size:1.55rem;font-weight:700}
.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:18px}
.panel-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}.panel-header h3{font-size:1.05rem}
.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--border);white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
.badge{display:inline-flex;border-radius:999px;padding:3px 10px;font-size:.75rem;font-weight:600}
.badge-active,.badge-available{background:rgba(34,197,94,.15);color:#86efac}
.badge-disabled,.badge-expired{background:rgba(239,68,68,.15);color:#fca5a5}
.badge-used{background:rgba(59,130,246,.15);color:#93c5fd}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);display:grid;place-items:center;z-index:50;padding:16px}
.modal{width:100%;max-width:480px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
.modal h3{margin-bottom:14px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.token-box{background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;padding:12px;word-break:break-all;font-family:ui-monospace,Menlo,monospace;font-size:.8rem;margin-top:10px;max-height:140px;overflow:auto}
.empty{color:var(--muted);text-align:center;padding:28px 10px}
@media(max-width:860px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto;border-right:none;border-bottom:1px solid var(--border)}}

/* Professional login */
.login-page{position:relative;min-height:100vh;display:grid;place-items:center;padding:28px;overflow:hidden}
.login-bg{position:absolute;inset:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(40px);opacity:.45}
.orb-1{width:420px;height:420px;background:#2563eb;top:-80px;left:-60px}
.orb-2{width:360px;height:360px;background:#0891b2;bottom:-100px;right:-40px;opacity:.35}
.grid-overlay{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse at center,black 30%,transparent 75%)}
.login-shell{position:relative;z-index:1;width:100%;max-width:920px;display:grid;grid-template-columns:1.05fr .95fr;gap:0;background:rgba(17,24,39,.72);border:1px solid rgba(148,163,184,.18);border-radius:24px;overflow:hidden;box-shadow:0 25px 80px rgba(0,0,0,.45);backdrop-filter:blur(18px)}
.login-hero{padding:42px 36px;background:linear-gradient(160deg,rgba(37,99,235,.22),rgba(8,145,178,.08) 55%,transparent);border-right:1px solid rgba(148,163,184,.12)}
.login-hero h1{font-size:2rem;margin:14px 0 10px;letter-spacing:-.02em}
.login-hero>p{color:var(--muted);line-height:1.6;margin-bottom:22px;font-size:.95rem}
.brand-mark.lg{width:56px;height:56px;border-radius:16px;font-size:1.4rem}
.login-points{list-style:none;display:grid;gap:10px;color:#cbd5e1;font-size:.92rem}
.login-points li{display:flex;align-items:center;gap:10px}
.login-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#60a5fa,#22d3ee);box-shadow:0 0 12px rgba(56,189,248,.6)}
.login-card{max-width:none;border:none;border-radius:0;box-shadow:none;background:transparent;padding:42px 36px}
.login-card h2{font-size:1.35rem;margin-bottom:6px;letter-spacing:-.01em}
.login-card .subtitle{margin-bottom:22px}
.btn-login{padding:13px 16px;font-size:1rem;margin-top:6px;background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 10px 24px rgba(37,99,235,.35)}
.btn-login:hover:not(:disabled){filter:brightness(1.06);background:linear-gradient(135deg,#60a5fa,#2563eb)}
.login-foot{margin-top:18px;text-align:center;color:var(--muted);font-size:.78rem}
@media(max-width:820px){
  .login-shell{grid-template-columns:1fr}
  .login-hero{border-right:none;border-bottom:1px solid rgba(148,163,184,.12);padding:28px 24px}
  .login-card{padding:28px 24px}
}