:root{
 --bg:#f5f6f8;--card:#fff;--text:#1d232f;--muted:#697386;
 --red:#e10600;--red2:#b80000;--orange:#ff7a00;--line:#e4e7eb;--shadow:0 12px 30px rgba(0,0,0,.08)
}
*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#fff,#f2f3f5);font-family:Arial,Helvetica,sans-serif;color:var(--text)}
a{color:inherit}.shell{display:grid;grid-template-columns:245px 1fr;min-height:100vh}
.sidebar{background:#fff;border-right:1px solid var(--line);padding:22px 16px;position:sticky;top:0;height:100vh}
.brand{font-weight:900;font-size:26px;letter-spacing:-1px;margin:6px 10px 26px}.brand b{color:var(--red)}.brand i{font-style:normal;color:var(--orange)}
.nav{display:grid;gap:7px}.nav a{padding:12px 14px;border-radius:12px;text-decoration:none;font-weight:700;color:#4b5563}
.nav a:hover,.nav a.active{background:linear-gradient(90deg,#fff0ee,#fff7ed);color:var(--red)}
.main{padding:28px;min-width:0}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.top h1{margin:0;font-size:30px}
.badge{display:inline-flex;padding:7px 11px;border-radius:999px;background:#fff0ee;color:var(--red);font-size:12px;font-weight:800}
.grid{display:grid;gap:18px}.grid.cols4{grid-template-columns:repeat(4,1fr)}.grid.cols2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:20px}
.card h2,.card h3{margin-top:0}.stat .v{font-size:28px;font-weight:900}.stat .k{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:11px;padding:10px 15px;background:var(--red);color:white;text-decoration:none;font-weight:800;cursor:pointer}
.btn.orange{background:var(--orange)}.btn.light{background:#fff3ed;color:#b84e00}
table{width:100%;border-collapse:collapse}th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left}th{font-size:12px;color:var(--muted);text-transform:uppercase}
input,select{width:100%;padding:11px;border:1px solid #d7dbe0;border-radius:10px;background:#fff}
.formgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.bar{height:8px;border-radius:99px;background:#eee;overflow:hidden}.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--red),var(--orange))}
.racehero{background:linear-gradient(120deg,#fff,#fff3ed);border-left:5px solid var(--red)}
.weather{font-weight:900}.weather.wet{color:#3b82f6}.weather.mixed{color:var(--orange)}.weather.dry{color:var(--red)}
.login{min-height:100vh;display:grid;place-items:center;padding:25px}.login .card{width:min(430px,100%)}.logo-big{font-size:38px;font-weight:1000;text-align:center;margin-bottom:22px}.logo-big span{color:var(--red)}.logo-big i{font-style:normal;color:var(--orange)}
.notice{padding:12px 14px;border-radius:12px;background:#fff5f3;border:1px solid #ffd3cd;margin-bottom:15px}
@media(max-width:1000px){.shell{grid-template-columns:1fr}.sidebar{height:auto;position:relative}.nav{grid-template-columns:repeat(3,1fr)}.grid.cols4,.grid.cols2{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.main{padding:18px}.nav{grid-template-columns:1fr 1fr}.grid.cols4,.grid.cols2,.formgrid{grid-template-columns:1fr}}