:root{--bg:#f4f6f8;--card:#fff;--txt:#17212b;--muted:#6b7280;--primary:#0f766e;--danger:#b91c1c;--border:#e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--txt)}a{text-decoration:none;color:inherit}.topbar{background:#111827;color:white;padding:14px 20px;display:flex;justify-content:space-between;gap:16px;align-items:center;position:sticky;top:0;z-index:3}.brand{font-weight:700}.nav{display:flex;gap:10px;flex-wrap:wrap}.nav a{background:rgba(255,255,255,.08);padding:8px 10px;border-radius:10px}.container{max-width:1180px;margin:24px auto;padding:0 16px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(15,23,42,.05);margin-bottom:16px}.kpi{font-size:28px;font-weight:800}.muted{color:var(--muted)}.btn,button{background:var(--primary);color:white;border:0;border-radius:12px;padding:10px 14px;cursor:pointer;display:inline-block;font-weight:700}.btn.secondary{background:#374151}.btn.danger{background:var(--danger)}input,select,textarea{width:100%;padding:11px;border:1px solid var(--border);border-radius:12px;margin:6px 0 12px;background:white}label{font-weight:700;font-size:14px}table{width:100%;border-collapse:collapse;background:white;border-radius:14px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}th{background:#f9fafb}.login,.install{min-height:100vh;display:grid;place-items:center;padding:16px}.login-card,.install-card{background:white;border-radius:22px;padding:28px;max-width:460px;width:100%;box-shadow:0 14px 34px rgba(15,23,42,.12)}.alert{background:#fee2e2;color:#991b1b;padding:10px;border-radius:10px}.success{background:#dcfce7;color:#166534;padding:10px;border-radius:10px}.photos{display:flex;gap:10px;flex-wrap:wrap}.photos img{width:180px;height:140px;object-fit:cover;border-radius:14px;border:1px solid var(--border)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.product-row{display:grid;grid-template-columns:1fr 120px;gap:12px;align-items:end}@media(max-width:800px){.grid,.form-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.nav{width:100%}.nav a{font-size:13px}.product-row{grid-template-columns:1fr}.container{margin:16px auto}th,td{font-size:12px;padding:9px}table{display:block;overflow-x:auto}.photos img{width:100%;height:auto}}
