:root{
  --green:#1BB273;
  --green-700:#0f8d58;
  --grey-50:#fafafa;
  --grey-100:#F5F5F5;
  --grey-300:#e6e6e6;
  --grey-800:#333;
  --danger:#c0392b;
  --shadow:0 6px 20px rgba(0,0,0,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif;color:var(--grey-800);background:var(--grey-100)}
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#fff;box-shadow:var(--shadow)}
.brand{display:flex;gap:12px;align-items:center}
.logo{width:36px;height:36px}
.brand-title{font-weight:800;font-size:18px;color:var(--green)}
.brand-sub{font-size:12px;color:#666;margin-top:2px}
.session{display:flex;align-items:center;gap:8px}
.container{max-width:1100px;margin:24px auto;padding:0 16px}
.card{background:#fff;border:1px solid var(--grey-300);border-radius:12px;box-shadow:var(--shadow);padding:16px}
.center{margin:48px auto;text-align:center}
h1,h2,h3{margin:8px 0 12px 0}
.form{display:grid;gap:8px}
.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.grid-four{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.grid-five{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
@media (max-width:900px){.grid-two{grid-template-columns:1fr}.grid-four,.grid-five{grid-template-columns:1fr}}
input,select{padding:10px;border:1px solid var(--grey-300);border-radius:10px;background:#fff}
.btn-primary{background:var(--green);color:#fff;border:none;padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:700}
.btn-primary:hover{background:var(--green-700)}
.btn-secondary{background:#111;color:#fff;border:none;padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:600}
.btn-danger{background:var(--danger);color:#fff;border:none;padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:700}
.muted{color:#666}
.tiny{font-size:12px}
.error{color:#c0392b;background:#fdecea;border:1px solid #f5c6cb;padding:8px;border-radius:8px}
.table{margin-top:8px;border-top:1px solid var(--grey-300)}
.row{display:grid;grid-template-columns:120px 1fr 1fr 1fr 1fr 1fr 90px;gap:8px;padding:8px 0;border-bottom:1px solid var(--grey-300);align-items:center}
.row > .id{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:#444}
.footer{max-width:1100px;margin:24px auto 40px auto;padding:0 16px;text-align:center}