:root{
  --iku-red:#c8102e;
  --iku-red-dark:#93001e;
  --iku-blue:#07145f;
  --iku-dark:#1b1b1b;
  --iku-gray:#666;
  --iku-light:#f5f6f8;
  --iku-border:#e3e5ea;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  color:var(--iku-dark);
  background:#fff;
  line-height:1.65;
}
img{max-width:100%;display:block}
a{color:inherit}
.page-hero{
  min-height:360px;
  display:flex;
  align-items:flex-end;
  position:relative;
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero:before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(3,12,72,.94),rgba(3,12,72,.62),rgba(3,12,72,.18));
}
.container{width:min(1120px,calc(100% - 32px));margin:auto}
.hero-content{position:relative;z-index:1;padding:70px 0 50px;max-width:760px}
.eyebrow{
  display:inline-block;
  padding:6px 12px;
  border-radius:20px;
  background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.38);
  font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase
}
h1{font-size:clamp(36px,6vw,64px);line-height:1.05;margin:16px 0 12px}
.hero-content p{font-size:18px;color:rgba(255,255,255,.9);margin:0}
.section{padding:64px 0}
.section.gray{background:var(--iku-light)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start}
.card{
  background:#fff;border:1px solid var(--iku-border);border-radius:12px;
  padding:26px;box-shadow:0 10px 28px rgba(0,0,0,.06)
}
h2{color:var(--iku-blue);font-size:clamp(27px,4vw,40px);line-height:1.2;margin:0 0 18px}
h3{color:var(--iku-blue);margin:0 0 12px}
.lead{font-size:18px;color:#4c4c4c}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.info{
  border-left:4px solid var(--iku-red);
  background:#fff;
  padding:18px;border-radius:8px;
  box-shadow:0 6px 18px rgba(0,0,0,.05)
}
.info strong{display:block;color:var(--iku-blue);margin-bottom:4px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery img{width:100%;height:240px;object-fit:cover;border-radius:9px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:12px 14px;border:1px solid var(--iku-border);text-align:left;vertical-align:top}
th{background:var(--iku-blue);color:#fff}
tr:nth-child(even) td{background:#fafafa}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 20px;border-radius:6px;background:var(--iku-red);
  color:#fff;text-decoration:none;font-weight:700
}
.button:hover{background:var(--iku-red-dark)}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.tag{padding:7px 12px;background:#eef0f5;color:var(--iku-blue);border-radius:22px;font-size:13px;font-weight:700}
.notice{
  padding:18px 20px;border-left:5px solid var(--iku-red);
  background:#fff5f6;border-radius:8px
}
.rules{display:grid;gap:14px}
.rules details{
  background:#fff;border:1px solid var(--iku-border);border-radius:9px;padding:16px 18px
}
.rules summary{cursor:pointer;color:var(--iku-blue);font-weight:700}
.footer-cta{padding:44px 0;background:var(--iku-blue);color:#fff;text-align:center}
.footer-cta h2{color:#fff}
.small{font-size:14px;color:var(--iku-gray)}
@media(max-width:850px){
  .grid-2,.info-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .section{padding:48px 0}
  .gallery{grid-template-columns:1fr}
  .gallery img{height:270px}
  table{font-size:14px}
  th,td{padding:9px}
}