:root {
    --red:#b3001b;
    --red-dark:#7a0012;
    --red-soft:#f8d9df;
    --bg:#fff7f8;
    --card:#ffffff;
    --text:#23181a;
    --muted:#7b676b;
    --border:#e4c8ce;
    --green:#157347;
    --yellow:#b58105;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#fff5f6, #f6f0f1 45%, #fff);color:var(--text)}
a{color:var(--red-dark);text-decoration:none}
a:hover{text-decoration:underline}
.site-shell{max-width:1400px;margin:0 auto;padding:16px}
.topbar{background:linear-gradient(135deg,var(--red-dark),var(--red));color:#fff;padding:18px 20px;border-radius:22px;display:flex;justify-content:space-between;gap:20px;align-items:flex-start;box-shadow:0 12px 24px rgba(122,0,18,.18)}
.topbar h1{margin:4px 0 0;font-size:clamp(1.3rem,2.8vw,2rem)}
.brand-kicker{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;opacity:.85}
.nav{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.nav a{background:rgba(255,255,255,.14);color:#fff;padding:10px 14px;border-radius:999px;font-weight:700}
.content{padding:18px 2px}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:0 8px 20px rgba(90,40,48,.08)}
.stack{display:flex;flex-direction:column;gap:16px}
label{display:block;font-size:.92rem;font-weight:700;margin:0 0 6px}
input,select,button,textarea{width:100%;padding:11px 12px;border-radius:12px;border:1px solid #cfadb4;background:#fff;font:inherit}
button,.btn{background:var(--red);color:#fff;border:none;cursor:pointer;font-weight:700}
button.secondary,.btn.secondary{background:#fff;color:var(--red);border:1px solid var(--red)}
button.inline{width:auto;padding:9px 12px}
.inline-form{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.flash{padding:12px 14px;border-radius:14px;margin-bottom:14px;font-weight:700}
.flash-success{background:#dff3e8;color:#115a38;border:1px solid #b9e2ca}
.flash-error{background:#fde1e5;color:#8f1026;border:1px solid #f2b8c2}
.flash-info{background:#eef4ff;color:#23457d;border:1px solid #cddaf8}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:10px 12px;border-bottom:1px solid #efdde0;text-align:left;vertical-align:middle}
th{background:#fff0f2;font-size:.88rem;text-transform:uppercase;letter-spacing:.04em;color:#7d303f}
tr.highlight{background:#fffaf1}
.badge{display:inline-block;padding:5px 10px;border-radius:999px;background:var(--red-soft);color:var(--red-dark);font-weight:700;font-size:.82rem}
.score-big{font-size:clamp(1.6rem,4vw,3rem);font-weight:800;color:var(--red-dark)}
.muted{color:var(--muted)}
.kpi{display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff6f7);border:1px solid var(--border)}
.kpi .value{font-size:2rem;font-weight:800;color:var(--red-dark)}
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
.login-card{max-width:460px;margin:40px auto}
.info-header{display:flex;justify-content:space-between;gap:14px;align-items:center;flex-wrap:wrap}
.class-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.rank-1{border-left:6px solid #d4af37}.rank-2{border-left:6px solid #c0c0c0}.rank-3{border-left:6px solid #cd7f32}
.bracket-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.match{border:1px solid var(--border);border-radius:16px;padding:12px;background:#fff}
.match h4{margin:0 0 10px;color:var(--red-dark)}
.match-line{display:flex;justify-content:space-between;gap:8px;padding:6px 0;border-top:1px solid #f2e4e7}
.match-line:first-of-type{border-top:none}
.winner{font-weight:800;color:#0c5c37}
@media (max-width: 900px){.grid-2,.grid-3,.hero{grid-template-columns:1fr}.topbar{border-radius:0;padding:16px}.site-shell{padding:0}.content{padding:14px}}

.button-link{display:inline-block;background:#8f0d14;color:#fff;text-decoration:none;padding:10px 14px;border-radius:10px;font-weight:700}.button-link:hover{filter:brightness(1.05)}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{background:#fff1f2;border:1px solid #fecdd3;color:#7f1d1d;padding:8px 10px;border-radius:999px;font-weight:700;font-size:.92rem}.muted{color:#666}code{background:#fff1f2;padding:2px 6px;border-radius:6px}