:root{--bg:#0b0f19;--card-bg:#111827;--card-border:#1f2937;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-green:#10b981;--text:#f9fafb;--text-muted:#9ca3af;--danger:#ef4444;--font:Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);min-height:100vh}.header{background:var(--card-bg);border-bottom:1px solid var(--card-border);justify-content:space-between;align-items:center;gap:1rem;padding:1rem 2rem;display:flex}.brand{align-items:center;gap:.75rem;font-size:1.25rem;font-weight:700;display:flex}.brand span{color:var(--accent)}.badge-admin{color:#60a5fa;text-transform:uppercase;background:#2563eb33;border-radius:4px;padding:.25rem .5rem;font-size:.75rem;font-weight:600}.container{max-width:1300px;margin:2rem auto;padding:0 1.5rem}.login-wrapper{background:var(--card-bg);border:1px solid var(--card-border);border-radius:8px;max-width:400px;margin:6rem auto;padding:2.5rem}.login-wrapper h1{text-align:center;margin-bottom:.5rem;font-size:1.5rem}.login-copy{text-align:center;color:var(--text-muted);margin-bottom:1.5rem;font-size:.9rem}.form-group{margin-bottom:1.25rem}.form-group label{color:var(--text-muted);margin-bottom:.5rem;font-size:.85rem;font-weight:500;display:block}.form-control{border:1px solid var(--card-border);color:#fff;background:#1e293b;border-radius:6px;width:100%;padding:.75rem;font-family:inherit;font-size:.95rem}.form-control:focus{border-color:var(--accent);outline:none}.form-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;display:grid}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;justify-content:center;align-items:center;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;display:inline-flex}.btn:hover:not(:disabled){background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-success{background:var(--accent-green);width:auto;padding:.75rem 2rem}.btn-success:hover:not(:disabled){background:#059669}.btn-row{color:#9ca3af;background:0 0;border:1px solid #374151;width:auto;padding:.35rem .75rem;font-size:.8rem}.btn-row:hover:not(:disabled){background:#1f2937}.header-actions{align-items:center;gap:1rem;display:flex}.admin-email{color:var(--text-muted);font-size:.85rem}.grid-stats{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;margin-bottom:2rem;display:grid}.stat-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:8px;padding:1.25rem}.stat-label{text-transform:uppercase;color:var(--text-muted);font-size:.8rem;font-weight:600}.stat-value{margin-top:.5rem;font-size:1.75rem;font-weight:700}.stat-meta{color:var(--accent-green);margin-top:.25rem;font-size:.8rem}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:8px;margin-bottom:2rem;padding:1.5rem}.card-header{border-bottom:1px solid var(--card-border);justify-content:space-between;align-items:center;margin-bottom:1.25rem;padding-bottom:.75rem;display:flex}.card-title{font-size:1.15rem;font-weight:600}table{border-collapse:collapse;text-align:left;width:100%}th{text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--card-border);padding:.75rem;font-size:.8rem}td{vertical-align:middle;border-bottom:1px solid #ffffff0d;padding:.75rem;font-size:.9rem}.table-wrap{overflow-x:auto}.actions{flex-wrap:wrap;gap:.5rem;display:flex}.pill{border-radius:4px;padding:.2rem .5rem;font-size:.75rem;font-weight:600;display:inline-block}.pill-green{color:#34d399;background:#10b98126}.pill-blue{color:#60a5fa;background:#2563eb26}.pill-amber{color:#fbbf24;background:#eab30826}.upload-box{text-align:center;cursor:pointer;background:#131d2e;border:2px dashed #374151;border-radius:8px;margin-bottom:1.25rem;padding:2rem}.upload-box:hover,.upload-box:focus{border-color:var(--accent);outline:none}.upload-title{margin-bottom:.25rem;font-size:1.1rem;font-weight:600}.upload-hint{color:var(--text-muted);font-size:.85rem}.code-input{resize:vertical;height:120px;font-family:Consolas,Courier New,monospace;font-size:.85rem}.alert{border-radius:6px;margin-bottom:1rem;padding:.75rem 1rem;font-size:.9rem}.alert-success{color:#34d399;background:#10b98126;border:1px solid #10b981}.alert-danger{color:#f87171;background:#ef444426;border:1px solid #ef4444}.empty{color:var(--text-muted);padding:.75rem;font-size:.9rem}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=720px){.header,.container{padding-left:1rem;padding-right:1rem}.login-wrapper{margin:2rem 1rem}}