:root{
  --blue-950:#0a2240;
  --blue-900:#10315b;
  --blue-800:#1c4d8f;
  --blue-700:#2d6cbc;
  --blue-100:#eaf3ff;
  --blue-050:#f7fbff;
  --white:#ffffff;
  --border:#d6e4f7;
  --text:#183453;
  --muted:#637d99;
  --danger:#be2f3c;
  --warning:#946200;
  --success:#16633b;
  --shadow:0 10px 30px rgba(19, 56, 105, 0.08);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:linear-gradient(180deg, #f9fbff 0%, #eef5fd 100%);
}
a{color:inherit}
.site-shell{min-height:100vh;display:flex;flex-direction:column}
.topbar{
  background:var(--white);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 16px rgba(17,52,99,.04);
}
.brand{
  width:min(1000px, calc(100% - 24px));
  margin:0 auto;
  display:flex;
  gap:16px;
  align-items:center;
  padding:14px 0;
}
.brand-link{display:inline-flex}
.brand-logo{
  width:70px;height:70px;object-fit:cover;border-radius:50%;
  border:4px solid var(--white);box-shadow:var(--shadow);background:#fff;
}
.brand-text h1{margin:2px 0 4px;font-size:clamp(1.45rem,3vw,2rem);line-height:1.05;color:var(--blue-950)}
.eyebrow{margin:0;font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-700)}
.subtitle{margin:0;color:var(--muted);font-size:.98rem}
.container{width:min(1000px, calc(100% - 24px));margin:0 auto;padding:18px 0 34px}
.hero-card{
  margin:18px 0;
  background:linear-gradient(135deg, var(--blue-950), var(--blue-700));
  color:var(--white);
  border-radius:24px;
  padding:24px;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  box-shadow:var(--shadow);
}
.simple-hero h2{margin:0 0 8px;font-size:1.5rem}
.simple-hero p{margin:0;color:rgba(255,255,255,.88);line-height:1.55}
.hero-badge{
  width:80px;height:80px;display:grid;place-items:center;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.1);font-weight:800;letter-spacing:.08em
}
.section-head,.admin-head{display:flex;justify-content:space-between;align-items:end;gap:14px;margin-bottom:14px}
.section-head h3,.admin-head h2{margin:0;color:var(--blue-950)}
.section-head p,.muted{margin:0;color:var(--muted)}
.race-list,.admin-list{display:grid;gap:12px}
.race-card,.table-card,.auth-card,.form-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)
}
.race-card{padding:16px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.race-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:8px}
.tag{
  display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:28px;padding:0 10px;
  border-radius:999px;background:var(--blue-100);color:var(--blue-800);font-size:.8rem;font-weight:800
}
.date{color:var(--muted);font-size:.92rem;font-weight:600}
.race-card h4,.admin-item h3{margin:0 0 6px;color:var(--blue-950)}
.race-details,.small{margin:0;color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:12px;
  text-decoration:none;border:none;cursor:pointer;font-weight:700;transition:.2s ease
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue-700);color:var(--white)}
.btn-primary:hover{background:var(--blue-800)}
.btn-secondary{background:var(--blue-100);color:var(--blue-900)}
.btn-secondary:hover{background:#dbeafb}
.btn-danger{background:#fde9ec;color:var(--danger)}
.btn-danger:hover{background:#f8d6db}
.btn-full{width:100%}
.admin-container{padding-top:22px}
.auth-card,.form-card,.table-card{padding:22px}
.auth-card{max-width:520px;margin:20px auto}
.stack-form{display:grid;gap:16px}
.form-group{display:grid;gap:7px}
.form-group label{font-weight:700;color:var(--blue-950)}
.form-group input{
  min-height:48px;border:1px solid var(--border);border-radius:12px;padding:0 14px;font:inherit;color:var(--text);background:#fff
}
.form-group input:focus{outline:none;border-color:var(--blue-700);box-shadow:0 0 0 3px rgba(45,108,188,.12)}
.form-group small{color:var(--muted)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.inline-radios{display:flex;gap:16px;flex-wrap:wrap}
.radio-label,.checkbox-label{display:inline-flex;gap:10px;align-items:center;color:var(--text)}
.checkbox-group{align-items:end}
.form-actions,.admin-head-actions,.admin-item-actions{display:flex;gap:10px;flex-wrap:wrap}
.admin-item{
  padding:16px;border:1px solid var(--border);border-radius:16px;background:var(--blue-050);
  display:flex;justify-content:space-between;gap:14px;align-items:center
}
.alert{
  padding:12px 14px;border-radius:14px;margin:0 0 12px 0;font-weight:600;border:1px solid transparent
}
.alert-success{background:#e8f8ef;color:var(--success);border-color:#c9edd8}
.alert-error{background:#fdecee;color:var(--danger);border-color:#f6cdd4}
.alert-warning{background:#fff5db;color:var(--warning);border-color:#f0dfaa}
.empty-card{justify-content:flex-start}
.footer{margin-top:auto;border-top:1px solid var(--border);background:#fff}
.footer-inner{display:flex;justify-content:space-between;gap:10px;padding:14px 0;color:var(--muted)}
@media (max-width: 780px){
  .brand{align-items:flex-start}
  .brand-logo{width:58px;height:58px}
  .hero-card{padding:18px;flex-direction:column;align-items:flex-start}
  .hero-badge{width:64px;height:64px}
  .section-head,.admin-head,.footer-inner,.admin-item,.race-card{flex-direction:column;align-items:flex-start}
  .grid-2{grid-template-columns:1fr}
  .race-actions,.admin-item-actions,.admin-head-actions,.form-actions{width:100%}
  .race-actions .btn,.admin-item-actions .btn,.admin-item-actions form,.admin-item-actions button,.admin-head-actions .btn,.form-actions .btn{width:100%}
}