:root{
  --green:#1e7d32; --green-d:#155a24; --bg:#f6f8f6; --card:#fff;
  --line:#e2e8e2; --text:#1b2a1d; --muted:#5f6f60; --red:#b00020; --amber:#a86400;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%}
header.nav{background:var(--green);color:#fff;padding:10px 14px;display:flex;gap:6px;flex-wrap:wrap;align-items:center;position:sticky;top:0;z-index:10}
header.nav .brand{font-weight:700;margin-right:8px;display:flex;align-items:center;gap:6px}
header.nav a{color:#fff;text-decoration:none;padding:7px 11px;border-radius:8px;font-size:14px;opacity:.9}
header.nav a.active,header.nav a:hover{background:rgba(255,255,255,.18);opacity:1}
main{max-width:720px;margin:0 auto;padding:16px}
h1{font-size:20px;margin:6px 0 4px}
.sub{color:var(--muted);font-size:14px;margin:0 0 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
label{display:block;font-weight:600;font-size:14px;margin:12px 0 5px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cfd8cf;border-radius:10px;font-size:16px;background:#fff;color:var(--text)}
textarea{min-height:64px;resize:vertical}
.row{display:flex;gap:8px}.row>*{flex:1}
button{font-size:16px;font-weight:600;border:0;border-radius:10px;padding:12px 16px;cursor:pointer}
button.primary{background:var(--green);color:#fff;width:100%}
button.primary:active{background:var(--green-d)}
button.ghost{background:#eef3ee;color:var(--green-d)}
button.sm{padding:8px 12px;font-size:14px;width:auto}
button:disabled{opacity:.5;cursor:not-allowed}
.seg{display:flex;gap:8px;margin:6px 0}
.seg label{flex:1;margin:0;border:1px solid #cfd8cf;border-radius:10px;padding:11px;text-align:center;font-weight:600;cursor:pointer;background:#fff}
.seg input{display:none}
.seg input:checked+span{color:#fff}
.seg label:has(input:checked){background:var(--green);border-color:var(--green);color:#fff}
.stu-row{display:flex;gap:8px;margin-bottom:8px;align-items:center}
.stu-row .nm{flex:3}.stu-row .gr{flex:1}
.stu-row .rm{background:#fbe9e7;color:var(--red);width:auto;padding:10px 12px}
.hint{font-size:13px;color:var(--muted);margin-top:6px}
.result{padding:12px;border-radius:10px;margin-top:12px;font-size:14px;display:none}
.result.ok{background:#e6f4ea;color:var(--green-d);display:block}
.result.err{background:#fbe9e7;color:var(--red);display:block}
.result.warn{background:#fff4e5;color:var(--amber);display:block}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}
.pill.wg{background:#e6f4ea;color:var(--green-d)}.pill.mu{background:#e8eefc;color:#264b9c}
.preview{width:100%;max-height:280px;object-fit:contain;border-radius:10px;border:1px solid var(--line);margin-top:10px;display:none;background:#fafafa}
.big{font-size:30px;font-weight:800;color:var(--green-d);margin:2px 0}
.kpi{display:flex;gap:12px;flex-wrap:wrap}
.kpi .card{flex:1;min-width:130px;margin:0}
.spin{display:inline-block;width:16px;height:16px;border:2px solid #fff;border-top-color:transparent;border-radius:50%;animation:sp 0.7s linear infinite;vertical-align:-3px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}
a.link{color:var(--green-d);font-weight:600}
.muted{color:var(--muted)}