:root{
  --navy:#101a43;--ink:#172033;--muted:#526077;--cream:#fffaf0;--paper:#fff;
  --line:#d7dfeb;--focus:#0b63ce;--orange:#ef6c32;--teal:#078f88;--purple:#6948c9;
  --blue:#1d6fd1;--gold:#f4b52f;--green:#17845b;--shadow:0 18px 55px rgba(20,31,60,.16);
  --team:#1d6fd1;--card-size:clamp(72px,10.7vh,126px)
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:'Poppins',system-ui,sans-serif;color:var(--ink);background:#dff4f5}
body{min-height:100vh;background:linear-gradient(#dff5fb 0 43%,#b8de92 43% 100%);background-attachment:fixed}
button,a,input{font:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:1000;background:#fff;color:#000;padding:.8rem 1rem;border-radius:8px;font-weight:800}
.skip-link:focus{top:1rem}
:focus-visible{outline:4px solid var(--focus);outline-offset:4px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.arena-bar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:1400px;margin:auto;padding:.55rem 1rem;background:rgba(255,255,255,.94);border-bottom:1px solid #dce5eb;position:relative;z-index:20}
.arena-bar__back,.icon-button,.round-button,.text-button{min-height:48px;border:2px solid var(--line);background:#fff;color:var(--navy);border-radius:999px;font-weight:900;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.55rem 1rem}
.arena-bar__brand{display:flex;align-items:center;gap:.45rem;color:var(--navy);font-size:1.05rem}.arena-bar__brand strong{font-size:1.2rem}.arena-bar__brand span:last-child{background:#efe9ff;color:#5c38bf;padding:.18rem .55rem;border-radius:999px;font-size:.75rem;font-weight:900;text-transform:uppercase;letter-spacing:.06em}
.arena-bar__actions{display:flex;align-items:center;gap:.5rem}.round-button{width:48px;padding:0;font-size:1.25rem}
.icon-button[aria-pressed="false"]{background:#f0f3f7;color:#697488}
.arena-shell{width:min(1400px,100%);margin:0 auto;padding:clamp(1rem,3vh,2.25rem) 1rem 2rem}
.screen{min-height:calc(100vh - 104px)}

.home-screen{display:grid;align-content:center;gap:clamp(1.25rem,3vh,2.4rem);max-width:1050px;margin:auto;min-height:calc(100vh - 140px)}
.hero-copy{text-align:center}.eyebrow{text-transform:uppercase;letter-spacing:.12em;color:#136a69;font-size:.8rem;font-weight:900;margin:0 0 .5rem}.hero-copy h1,.setup-card h1{font-family:'Playfair Display',Georgia,serif;color:var(--navy);font-size:clamp(2.2rem,5vw,4.2rem);line-height:1;margin:.2rem 0 .7rem}.hero-copy>p:last-child{max-width:760px;margin:auto;color:var(--muted);font-size:clamp(1rem,2vw,1.25rem);line-height:1.55}
.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.mode-card{min-height:138px;border:0;border-radius:26px;padding:1.2rem 1.35rem;color:#fff;box-shadow:0 12px 30px rgba(18,35,70,.18);display:grid;grid-template-columns:auto 1fr auto;align-items:center;text-align:left;gap:1rem;transition:transform .15s,box-shadow .15s}.mode-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(18,35,70,.24)}.mode-card__icon{font-size:3rem}.mode-card__copy{display:flex;flex-direction:column}.mode-card__copy strong{font-size:clamp(1.25rem,2.5vw,1.65rem)}.mode-card__copy small{font-size:.92rem;opacity:.95;margin-top:.2rem}.mode-card__arrow{font-size:2.8rem;line-height:1}.mode-card--solo{background:linear-gradient(135deg,#087f78,#14a3a2)}.mode-card--together{background:linear-gradient(135deg,#bf4d20,#f0783a)}.mode-card--teams{background:linear-gradient(135deg,#5932a7,#7a59dd)}.mode-card--robot{background:linear-gradient(135deg,#1b579b,#2384d6)}

.setup-screen{max-width:900px;margin:auto}.text-button{margin-bottom:1rem}.setup-card{background:rgba(255,250,240,.97);border:1px solid rgba(255,255,255,.8);border-radius:30px;padding:clamp(1.2rem,3vw,2.4rem);box-shadow:var(--shadow);text-align:center}.setup-card h1{font-size:clamp(2rem,4vw,3rem)}.setup-group{border:0;padding:0;margin:1.5rem 0;text-align:left}.setup-group legend{font-weight:900;color:var(--navy);font-size:1.05rem;margin-bottom:.7rem}.segmented{display:flex;gap:.55rem;flex-wrap:wrap}.segmented button{min-height:48px;border:2px solid var(--line);background:#fff;border-radius:14px;padding:.65rem 1rem;font-weight:800;color:var(--navy)}.segmented button[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}.team-name-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin-top:.8rem}.team-name-grid label{display:flex;align-items:center;gap:.6rem;background:#fff;border:2px solid var(--line);border-radius:14px;padding:.5rem}.team-name-grid i{width:18px;height:18px;border-radius:50%;flex:0 0 auto}.team-name-grid input{min-height:44px;border:0;min-width:0;width:100%;font-weight:800;color:var(--navy);background:transparent}.level-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem}.level-grid button{min-height:108px;border:3px solid transparent;background:#fff;border-radius:18px;color:var(--navy);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 5px 16px rgba(20,31,60,.09)}.level-grid button[aria-pressed="true"]{border-color:var(--teal);background:#e9fbf7}.level-grid button>span{font-size:1.5rem}.level-grid button strong{font-size:1.05rem}.level-grid button small{color:var(--muted)}.setup-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem}.setup-options legend{grid-column:1/-1}.setup-options label{min-height:76px;display:flex;align-items:center;gap:.65rem;background:#fff;border:2px solid var(--line);border-radius:14px;padding:.7rem;cursor:pointer}.setup-options input{width:24px;height:24px;flex:0 0 auto;accent-color:var(--teal)}.setup-options span{display:flex;flex-direction:column}.setup-options small{font-size:.76rem;color:var(--muted);line-height:1.3}.primary-button{min-height:58px;min-width:min(360px,100%);border:0;border-radius:16px;background:linear-gradient(135deg,#ed652d,#ef3d72);color:#fff;font-weight:900;font-size:1.25rem;box-shadow:0 9px 22px rgba(219,72,59,.28)}

.game-screen{display:flex;flex-direction:column;min-height:calc(100vh - 104px)}.game-hud{display:grid;grid-template-columns:minmax(210px,1fr) auto minmax(250px,1fr);gap:.75rem;align-items:center}.turn-panel,.game-stats,.score-board{background:rgba(255,255,255,.96);border:2px solid rgba(255,255,255,.8);box-shadow:0 5px 18px rgba(20,31,60,.12);border-radius:18px;min-height:64px}.turn-panel{display:flex;align-items:center;gap:.7rem;padding:.55rem .9rem}.turn-dot{width:20px;height:20px;background:var(--team);border-radius:50%;box-shadow:0 0 0 5px color-mix(in srgb,var(--team) 22%,transparent)}.turn-panel div{display:flex;flex-direction:column}.turn-panel small,.game-stats small{font-size:.7rem;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.08em}.turn-panel strong{color:var(--navy);font-size:1.05rem}.game-stats{display:flex;align-items:center;justify-content:space-around;padding:.4rem}.game-stats>div{display:flex;flex-direction:column;align-items:center;min-width:64px}.game-stats strong{font-size:1.1rem;color:var(--navy)}.score-board{display:flex;align-items:stretch;overflow:hidden}.score-chip{min-width:110px;padding:.4rem .65rem;display:flex;flex-direction:column;justify-content:center;text-align:center;border-bottom:5px solid var(--chip);opacity:.74}.score-chip.active{opacity:1;background:color-mix(in srgb,var(--chip) 13%,white)}.score-chip small{font-size:.7rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.score-chip strong{font-size:1.25rem;color:var(--navy)}.game-message{min-height:42px;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:900;color:var(--navy);font-size:clamp(.95rem,1.7vw,1.15rem);margin:.45rem 0;padding:.35rem .8rem;background:rgba(255,255,255,.76);border-radius:999px;align-self:center}
.memory-grid{--cols:4;display:grid;grid-template-columns:repeat(var(--cols),var(--card-size));grid-auto-rows:var(--card-size);gap:clamp(7px,1vh,12px);justify-content:center;align-content:center;flex:1;min-height:0;padding:.25rem}.memory-card{position:relative;width:var(--card-size);height:var(--card-size);padding:0;border:0;border-radius:17%;background:transparent;perspective:800px}.memory-card__inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .38s cubic-bezier(.2,.75,.2,1)}.memory-card.is-up .memory-card__inner,.memory-card.is-matched .memory-card__inner{transform:rotateY(180deg)}.memory-card__face{position:absolute;inset:0;border-radius:17%;display:flex;align-items:center;justify-content:center;backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:0 6px 0 #282777,0 10px 20px rgba(27,32,78,.2)}.memory-card__front{background:linear-gradient(145deg,#417ae0,#7a4bd2);border:4px solid rgba(255,255,255,.86);color:#fff}.memory-card__number{font-weight:900;font-size:clamp(1.55rem,4vh,2.8rem);text-shadow:0 2px 3px rgba(0,0,0,.25)}.memory-card__mark{position:absolute;right:10%;bottom:8%;font-size:clamp(.8rem,1.8vh,1.2rem);opacity:.75}.memory-card__back{transform:rotateY(180deg);background:#fff;border:4px solid #fff}.memory-card__back img{width:78%;height:78%;object-fit:contain}.memory-card.is-matched .memory-card__back{background:#e7faf1;border-color:#19a66e;box-shadow:0 0 0 4px #fff,0 0 0 8px #19a66e}.memory-card.is-matched{animation:match-pop .55s ease}.memory-card:disabled{cursor:default}.memory-card:focus-visible{outline:5px solid #0b63ce;outline-offset:5px;z-index:3}.memory-card.was-last .memory-card__back{box-shadow:0 0 0 4px #fff,0 0 0 9px var(--gold),0 0 32px var(--gold)}
@keyframes match-pop{50%{transform:scale(1.09)}}
.staff-dock{display:flex;justify-content:center;gap:.55rem;padding-top:.55rem}.staff-dock button{min-width:110px;min-height:48px;border:2px solid #d0d9e5;background:#fff;color:var(--navy);border-radius:13px;font-weight:900}.staff-dock button:disabled{opacity:.45;cursor:not-allowed}

.modal-layer{position:fixed;inset:0;z-index:100;background:rgba(7,15,43,.76);display:flex;align-items:center;justify-content:center;padding:1rem}.modal-card{width:min(620px,100%);max-height:94vh;overflow:auto;background:#fffdf7;border-radius:28px;padding:clamp(1.25rem,4vw,2.3rem);text-align:center;box-shadow:0 30px 90px rgba(0,0,0,.35)}.modal-card__icon{font-size:4rem}.modal-card h2{font-family:'Playfair Display',Georgia,serif;font-size:clamp(2rem,5vw,3rem);color:var(--navy);margin:.25rem 0}.modal-card p{color:var(--muted);font-size:1.05rem;line-height:1.55}.modal-actions{display:flex;justify-content:center;gap:.7rem;flex-wrap:wrap;margin-top:1.2rem}.modal-actions button{min-height:52px;padding:.7rem 1.15rem;border-radius:14px;border:2px solid var(--line);background:#fff;color:var(--navy);font-weight:900}.modal-actions .modal-primary{background:var(--orange);border-color:var(--orange);color:#fff}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.65rem;margin:1rem 0}.result-grid div{background:#f1f6fa;border-radius:14px;padding:.7rem}.result-grid small{display:block;color:var(--muted);font-weight:800;text-transform:uppercase;font-size:.7rem}.result-grid strong{color:var(--navy);font-size:1.3rem}.winner-list{display:grid;gap:.5rem;margin:1rem 0}.winner-row{display:flex;justify-content:space-between;align-items:center;border-left:8px solid var(--winner);background:#f5f7fa;padding:.7rem 1rem;border-radius:10px;font-weight:900}.preview-count{font-size:6rem;font-weight:900;color:var(--navy);line-height:1;margin:.6rem}.paused-card{background:#fff;border-radius:24px;padding:2rem;text-align:center}.paused-card h2{font-size:2.5rem;color:var(--navy)}
.celebrate{animation:celebrate-bg 1s ease}@keyframes celebrate-bg{50%{filter:brightness(1.13)}}

body.projector .arena-bar{display:none}body.projector .arena-shell{padding:.5rem;max-width:none}body.projector .screen,body.projector .game-screen{min-height:100vh}body.projector .game-message{margin:.2rem 0}body.projector .staff-dock{position:fixed;right:.5rem;bottom:.5rem;z-index:12;opacity:.3;transition:opacity .2s}body.projector .staff-dock:hover,body.projector .staff-dock:focus-within{opacity:1}body.projector .staff-dock button{min-width:52px}body.projector .staff-dock span{display:none}

@media(max-width:900px){.game-hud{grid-template-columns:1fr 1fr}.score-board{grid-column:1/-1;grid-row:2;justify-content:center}.turn-panel{grid-column:1}.game-stats{grid-column:2}.level-grid{grid-template-columns:repeat(2,1fr)}.setup-options{grid-template-columns:1fr}.setup-options legend{grid-column:auto}.icon-button span{display:none}.icon-button{width:48px;padding:0}.arena-bar__brand span:last-child{display:none}}
@media(max-width:600px){:root{--card-size:clamp(49px,14.2vw,64px)}.arena-bar{height:64px;padding:.45rem}.arena-bar__brand{display:none}.arena-shell{padding:.75rem .55rem}.screen{min-height:calc(100vh - 80px)}.mode-grid{grid-template-columns:1fr}.mode-card{min-height:104px}.mode-card__icon{font-size:2.4rem}.mode-card__copy strong{font-size:1.2rem}.mode-card__copy small{font-size:.8rem}.hero-copy h1{font-size:2.25rem}.team-name-grid{grid-template-columns:1fr}.setup-card{border-radius:22px;padding:1rem}.game-hud{gap:.35rem}.turn-panel,.game-stats,.score-board{min-height:55px;border-radius:13px}.turn-panel{padding:.35rem .5rem}.turn-panel strong{font-size:.86rem}.game-stats>div:nth-child(3){display:none}.game-stats>div{min-width:auto}.score-chip{min-width:78px;padding:.25rem}.game-message{font-size:.82rem;margin:.25rem 0;min-height:34px}.memory-grid{gap:6px;padding:0}.memory-card__face{box-shadow:0 4px 0 #282777,0 6px 12px rgba(27,32,78,.18)}.memory-card__front,.memory-card__back{border-width:3px}.staff-dock{gap:.3rem;overflow-x:auto;justify-content:flex-start;padding-bottom:.15rem}.staff-dock button{min-width:84px;min-height:48px;font-size:.78rem}.result-grid{gap:.35rem}.result-grid div{padding:.5rem}.modal-card{border-radius:20px}.modal-card__icon{font-size:3rem}}
@media(max-height:760px) and (min-width:700px){:root{--card-size:clamp(60px,10.3vh,92px)}.arena-bar{height:60px}.arena-shell{padding:.55rem 1rem}.screen,.game-screen{min-height:calc(100vh - 72px)}.game-hud{transform:scale(.92);transform-origin:center top;margin-bottom:-5px}.game-message{min-height:32px;margin:.15rem 0}.staff-dock{padding-top:.25rem}.staff-dock button{min-height:44px}.home-screen{gap:1rem}.mode-card{min-height:100px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.mode-card:hover{transform:none}}
@media(prefers-contrast:more){:root{--line:#667085}.memory-card__front{background:#2e248f;border-color:#fff}.game-message,.turn-panel,.game-stats,.score-board{border-color:#29334a}}
.memory-card__picture{font-size:clamp(2.3rem,6.5vh,5rem);line-height:1;filter:drop-shadow(0 5px 5px rgba(20,31,60,.18))}
body[data-board="3"]{--card-size:clamp(118px,19vh,190px)}
body[data-board="6"]{--card-size:clamp(88px,14.5vh,150px)}
body[data-board="10"]{--card-size:clamp(76px,11.8vh,128px)}
body[data-board="15"]{--card-size:clamp(66px,10.3vh,116px)}
body[data-board] .arena-shell{height:calc(100vh - 72px);padding:.5rem 1rem;overflow:hidden}
body[data-board] .game-screen{min-height:100%}
@media(max-width:600px){body[data-board]{--card-size:clamp(49px,14.2vw,64px)}body[data-board="3"]{--card-size:clamp(80px,25vw,110px)}body[data-board="6"]{--card-size:clamp(65px,21vw,88px)}}
.memory-card:focus{outline:none}
.using-keyboard .memory-card:focus{outline:5px solid #0b63ce;outline-offset:5px;z-index:3}