:root{--bg:#f1f5f9;--card:#fff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--brand:#1674b8;--danger:#b91c1c;--ok:#047857}*{box-sizing:border-box}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:var(--brand);text-decoration:none}.admin-wrap{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.side{background:#0f172a;color:#cbd5e1;padding:24px}.side h1{color:#fff;font-size:1.2rem}.side a{display:block;color:#e2e8f0;padding:10px 12px;border-radius:10px;margin:4px 0}.side a:hover,.side a.active{background:#1e293b}.main{padding:26px}.top{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin-bottom:18px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:18px;box-shadow:0 10px 30px rgba(15,23,42,.05)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.stat strong{display:block;font-size:1.8rem}table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}th,td{border-bottom:1px solid var(--line);padding:10px;text-align:right;vertical-align:top}th{background:#f8fafc}label{display:block;margin:10px 0 4px;font-weight:bold}input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:10px;padding:10px;font:inherit;background:white}textarea{min-height:220px}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn,button{border:0;background:var(--brand);color:#fff;border-radius:10px;padding:10px 14px;font:inherit;font-weight:bold;cursor:pointer;display:inline-block}.btn.secondary{background:#e2e8f0;color:#0f172a}.btn.danger{background:var(--danger)}.msg{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:12px;border-radius:12px}.err{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:12px;border-radius:12px}.muted{color:var(--muted);font-size:.9rem}.login{max-width:430px;margin:80px auto}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.toolbar form{display:flex;gap:8px}.code{direction:ltr;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px;white-space:pre-wrap}@media(max-width:900px){.admin-wrap{grid-template-columns:1fr}.side{position:relative}.grid,.row{grid-template-columns:1fr}.main{padding:16px}}