@media (max-width: 980px){
  .arena-layout{grid-template-columns:1fr}
  .arena-utility{position:fixed;top:auto;right:50%;bottom:18px;left:auto;z-index:20;order:2;width:auto;max-width:calc(100vw - 24px);height:auto;transform:translateX(50%)}
}
@media (max-width: 720px){
  .arena-shell{width:min(100% - 16px,1240px);padding:14px 0 112px}
  .arena-utility,.arena-board,.arena-sheet{border-radius:24px}
  .arena-utility{display:grid;justify-items:end;padding:0;border:none;background:transparent;box-shadow:none}
  .arena-utility__toggle{display:inline-flex;align-items:center;justify-content:space-between;gap:16px;width:auto;min-width:124px;min-height:58px;padding:0 18px;border:1px solid rgba(255,202,114,.45);border-radius:18px;background:rgba(10,12,18,.96);box-shadow:0 18px 34px rgba(0,0,0,.34);color:var(--text)}
  .arena-utility__toggle-main{display:inline-flex;align-items:center;gap:10px}
  .arena-utility__toggle-avatar{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;overflow:hidden;background:linear-gradient(135deg,#ffca72,#ff7a1a);box-shadow:0 0 0 1px rgba(255,202,114,.42),0 8px 18px rgba(255,122,26,.24);color:#281402;font:900 .72rem/1 'Barlow',sans-serif}
  .arena-utility__toggle-avatar img{width:100%;height:100%;display:block;object-fit:cover}
  .arena-utility__panel{position:absolute;right:50%;top:auto;bottom:72px;width:min(260px,calc(100vw - 24px));max-height:0;overflow:hidden;opacity:0;transform:translate(50%,18px);transition:max-height .34s ease,opacity .26s ease,transform .34s ease;padding:0}
  .arena-utility.is-open .arena-utility__panel{max-height:320px;opacity:1;transform:translate(50%,0)}
  .arena-utility__panel > *{margin-top:12px}
  .arena-utility__profile{display:none}
  .arena-utility__actions{grid-template-columns:repeat(2,minmax(0,1fr));padding:14px;border:1px solid rgba(255,202,114,.24);border-radius:22px;background:rgba(10,12,18,.98);box-shadow:0 20px 40px rgba(0,0,0,.34)}
  .arena-logout{margin:0 0 0 auto}
  .arena-chip{flex:1 1 calc(50% - 10px)}
  .arena-sheet h2{font-size:clamp(2.8rem,15vw,4.5rem)}
  .arena-board{padding:20px 16px 22px}
  .arena-board__head{align-items:flex-start;flex-direction:column}
  .arena-board__brand{width:100%;justify-content:flex-start}
  .arena-board__brand-logo{width:70px;height:70px;border-radius:20px}
  .arena-board__brand-logo img{width:54px;height:54px}
  .arena-board__toolbar{justify-content:flex-start}
  .arena-grid{grid-template-columns:1fr}
  .arena-card{min-height:auto;padding:16px}
  .arena-card__meta,.arena-card__foot{grid-template-columns:1fr}
  .arena-card__actions{flex-direction:column}
  .arena-ranking{max-height:88vh;margin:4vh auto 0}
  .arena-ranking__list{gap:10px}
  .arena-ranking__podium{grid-template-columns:repeat(3,minmax(0,1fr));align-items:end;gap:7px}
  .arena-ranking__podium-card{min-height:94px;padding:10px 8px;border-radius:14px;gap:3px}
  .arena-ranking__podium-card--1{min-height:112px}
  .arena-ranking__podium-card--2{min-height:102px}
  .arena-ranking__podium-card--3{min-height:94px}
  .arena-ranking__podium-card strong{font-size:1.45rem}
  .arena-ranking__podium-card span{font-size:.78rem;line-height:1.1}
  .arena-ranking__podium-card small{font-size:.68rem;line-height:1.15}
  .arena-ranking__podium-card em{font-size:.76rem;line-height:1.12}
  .arena-ranking__row{grid-template-columns:42px minmax(0,1fr) 86px}
}
@media (max-width: 480px){
  .arena-tool{min-height:40px}
  .arena-utility__actions{grid-template-columns:1fr}
  .arena-sheet{width:min(100% - 12px,520px);padding:24px 16px}
}