:root{--do:#c8102e;--do2:#9e0c24;--vang:#d9a520;--nen:#f6f3ee;--the:#fff;--chu:#1f1f1f;--mo:#6b6b6b;--vien:#e3ddd3;--xanh:#1f7a4d;--r:14px}
*{box-sizing:border-box}
body{margin:0;background:var(--nen);color:var(--chu);font:16px/1.5 "Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.dau{background:linear-gradient(135deg,var(--do),var(--do2));color:#fff;padding:22px 16px 26px;text-align:center}
.dau .nho{letter-spacing:.14em;font-size:12px;opacity:.85;text-transform:uppercase}
.dau h1{margin:4px 0 2px;font-size:28px;line-height:1.15}
.dau .cd{color:#ffe39a;font-weight:700}
.khung{max-width:860px;margin:0 auto;padding:16px}
.the{background:var(--the);border:1px solid var(--vien);border-radius:var(--r);padding:16px;margin:0 0 14px}
.the h2{margin:0 0 8px;font-size:19px}
.the h3{margin:12px 0 6px;font-size:16px}
label{display:block;font-weight:600;margin:12px 0 4px}
.goi{font-weight:400;color:var(--mo);font-size:13.5px;display:block;margin-top:1px}
input,textarea,select{width:100%;font:inherit;padding:10px 12px;border:1px solid #cfc7ba;border-radius:10px;background:#fff;color:inherit}
textarea{min-height:84px;resize:vertical}
input:focus,textarea:focus,select:focus{outline:2px solid var(--vang);border-color:var(--vang)}
button,.nut{font:inherit;font-weight:600;border:0;border-radius:10px;padding:10px 16px;cursor:pointer;background:var(--do);color:#fff;text-decoration:none;display:inline-block}
button.phu,.nut.phu{background:#fff;color:var(--do);border:1px solid var(--do)}
button.xam{background:#ece7de;color:#333}
button:disabled{opacity:.5;cursor:default}
.tab{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 12px}
.tab button{background:#fff;color:#333;border:1px solid var(--vien)}
.tab button.on{background:var(--do);color:#fff;border-color:var(--do)}
.an{display:none!important}
.chip{display:inline-flex;align-items:center;gap:6px;background:#fbefe0;border:1px solid #efd6ad;border-radius:99px;padding:4px 10px;margin:4px 4px 0 0;font-size:14px}
.chip b{cursor:pointer;color:var(--do)}
.goiy{border:1px solid var(--vien);border-radius:10px;max-height:220px;overflow:auto;margin-top:4px;background:#fff}
.goiy div{padding:8px 12px;cursor:pointer;border-bottom:1px solid #f1ece4}
.goiy div:hover{background:#fff6e6}
.tb{padding:10px 12px;border-radius:10px;margin:10px 0;font-size:15px}
.tb.ok{background:#e7f5ec;color:#145c38}
.tb.loi{background:#fde8ea;color:#8a0f22}
.tb.vang{background:#fff4d6;color:#6b4e00}
.luoi{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.so{font-size:26px;font-weight:800;color:var(--do)}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{padding:8px 6px;border-bottom:1px solid #eee5d8;text-align:left;vertical-align:top}
th{background:#faf6ef;font-weight:700}
.cuon{overflow-x:auto}
.mo{color:var(--mo);font-size:14px}
.nhan{display:inline-block;font-size:12px;font-weight:700;padding:2px 8px;border-radius:99px;background:#eee;color:#444}
.nhan.ck{background:#ffe9a8;color:#6b4e00}
.nhan.a{background:#fde3e6;color:var(--do2)}
.nhan.b{background:#e3eefc;color:#1d4b8f}
.hang{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.cuoi{text-align:center;color:var(--mo);font-size:13px;padding:10px 16px 30px}
pre.nd{white-space:pre-wrap;font:inherit;margin:4px 0 0;background:#faf8f4;border-radius:8px;padding:8px 10px}
@media (max-width:560px){.dau h1{font-size:23px}.khung{padding:12px}}