.fullscreen-attention{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 50% 35%,rgba(18,53,70,.95),rgba(3,8,14,.98) 70%);color:var(--white);text-align:center}.fullscreen-attention.is-hidden{display:none}.fullscreen-attention-card{width:min(520px,92vw);padding:28px 24px;border:1px solid var(--line);background:rgba(5,13,21,.92);box-shadow:0 0 35px rgba(0,216,255,.12),inset 0 0 25px rgba(95,231,255,.035);clip-path:polygon(14px 0,calc(100% - 14px) 0,100% 14px,100% calc(100% - 14px),calc(100% - 14px) 100%,14px 100%,0 calc(100% - 14px),0 14px)}.fullscreen-attention-icon{font-size:34px;color:var(--cyan);margin-bottom:10px}.fullscreen-attention-kicker{font-size:11px;letter-spacing:.24em;color:var(--muted);margin-bottom:10px}.fullscreen-attention-card h2{margin:0 0 12px;font-size:clamp(24px,5vw,38px);letter-spacing:.12em}.fullscreen-attention-card p{margin:0 auto 20px;max-width:420px;line-height:1.6;color:#a9c1cf;font-size:14px}.fullscreen-attention-card strong{color:var(--cyan)}.fullscreen-attention-button{width:100%;min-height:48px;border:1px solid var(--line);background:rgba(95,231,255,.08);color:var(--white);font-weight:800;letter-spacing:.12em;cursor:pointer}.fullscreen-attention-button:active{transform:translateY(1px)}

/* Game presentation is completely closed until fullscreen + landscape entry succeeds. */
body:not(.game-active) #terrain-world,body:not(.game-active) #game-world,body:not(.game-active) .world-vignette,body:not(.game-active) .hud-top,body:not(.game-active) #mobile-controls{display:none!important}