:root{--primary:#2563eb;--teal:#0f766e;--gold:#f59e0b;--dark:#0f172a;--muted:#64748b;--bg:#f8fafc;--white:#fff;--danger:#dc2626;--success:#16a34a;--border:#e2e8f0;--sidebar:#0f172a}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--dark);line-height:1.5}a{text-decoration:none;color:inherit}.container{width:min(1120px,92%);margin:auto}.topbar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand img{height:54px}.nav-actions{display:flex;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:10px 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.brand{color:#fff;margin-bottom:20px}.sidebar .brand img{height:60px;background:#fff;border-radius:12px;padding:4px}.menu{display:grid;gap:8px}.menu a{padding:11px 12px;border-radius:12px;color:#cbd5e1;font-weight:700}.menu a.active,.menu a:hover{background:#1e293b;color:#fff}.main{margin-left:275px;flex:1;padding:24px}.admin-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.admin-title h1{margin:0;font-size:28px}.cards{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.metric{background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px}.metric strong{font-size:32px;color:var(--primary);display:block}.table-card{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.table th{background:#f8fafc;font-size:13px;text-transform:uppercase;color:#475569}.actions{display:flex;gap:8px;flex-wrap:wrap}.badge{display:inline-block;padding:4px 9px;border-radius:999px;font-size:12px;font-weight:800}.badge-green{background:#dcfce7;color:#166534}.badge-gray{background:#e2e8f0;color:#334155}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.full{grid-column:1/-1}.pagination{padding:16px}.qr{display:grid;place-items:center;background:#f8fafc;border:1px dashed var(--border);border-radius:16px;padding:14px;margin:14px 0}.manual-key{font-family:monospace;background:#f1f5f9;padding:12px;border-radius:12px;word-break:break-all}@media(max-width:900px){.hero-inner,.grid,.stats,.cards,.form-grid{grid-template-columns:1fr}.sidebar{position:static;width:auto}.admin{display:block}.main{margin-left:0}.hero h1{font-size:36px}}