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env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fce4ecd1;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;transition:opacity .18s,transform .18s;display:grid;position:sticky;bottom:0}.bottom-nav.is-hidden{pointer-events:none;opacity:0;transform:translateY(100%)}.bottom-nav button{color:#880e4fb3;width:100%;min-width:0;box-shadow:var(--shadow-inset);background:#ffffff80;place-items:center;gap:3px;font-size:12px;font-weight:900;display:grid}.bottom-nav button.is-active{color:#fff;background:var(--rose);box-shadow:0 10px 22px #f0629247}.modal-backdrop{z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#880e4f47;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{width:min(100%,360px);color:var(--wine);text-align:center;background:#ffffffe0;border-radius:8px;gap:14px;padding:22px;display:grid;box-shadow:0 24px 60px #880e4f47}.modal svg{color:var(--rose);margin:0 auto}.modal p{color:#880e4fb8}.announcement-modal{width:min(100%,440px)}.announcement-modal img{object-fit:cover;width:100%;max-height:min(280px,44svh);box-shadow:var(--shadow-inset);border-radius:8px}.announcement-modal .secondary-button{min-height:42px}@keyframes hint-nudge{0%,30%,to{transform:translate3d(var(--drag-x), var(--drag-y), 0)}52%,64%{transform:translate3d(calc(var(--drag-x) + var(--hint-x)), calc(var(--drag-y) + var(--hint-y)), 0)}}@keyframes glass-pop{0%{opacity:1;filter:brightness()saturate();transform:translate3d(var(--drag-x), var(--drag-y), 0) scale(1)}38%{opacity:1;filter:brightness(1.24)saturate(1.25);transform:translate3d(var(--drag-x), var(--drag-y), 0) scale(1.13)}to{opacity:0;filter:brightness(1.5)saturate(.7)blur(2px);transform:translate3d(var(--drag-x), var(--drag-y), 0) scale(.34) rotate(10deg)}}@keyframes glass-ring{0%{opacity:.75;transform:scale(1)}to{opacity:0;transform:scale(1.55)}}@keyframes glass-spark{0%{opacity:0;transform:scale(.45)}35%{opacity:1;transform:scale(1.2)}to{opacity:0;transform:scale(2.1)}}@keyframes icon-pop{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.65)rotate(-8deg)}}@keyframes tile-enter{0%{opacity:.38;filter:brightness(1.08)}to{opacity:1;filter:brightness()}}@keyframes score-float{0%{opacity:0;transform:translate(-50%,16px)scale(.78)}18%{opacity:1;transform:translate(-50%)scale(1.05)}to{opacity:0;transform:translate(-50%,-44px)scale(1)}}@keyframes mascot-float{0%,to{transform:translate(0,0)}50%{transform:translateY(-8px)}}@keyframes idle-cat-float{0%,to{transform:translate(-50%,-50%)rotate(-2deg)scale(.98)}50%{transform:translate(-50%,-56%)rotate(2deg)scale(1.02)}}@media (width<=900px){.game-layout{grid-template-columns:1fr}.side-rail{align-content:start;gap:16px;height:auto;padding-bottom:0;display:grid;position:static}.session-panel{grid-template-columns:1fr 1fr;align-items:stretch}.meter-block,.stat-grid,.message-strip,.panel-actions,.session-panel .primary-button{grid-column:span 2}.side-mascot{z-index:auto;width:min(230px,72vw);margin:0 auto;position:static}}@media (width<=640px){.app-shell{padding-bottom:calc(78px + env(safe-area-inset-bottom))}.app-shell.is-game-active{padding-bottom:0}.topbar{padding:max(8px, env(safe-area-inset-top)) 12px 6px;flex-direction:row;align-items:center;gap:10px}.brand-button{align-self:flex-start;min-height:38px}.brand-logo{height:38px}.topbar-actions{flex:1;justify-content:flex-end}.top-play-button{min-width:132px;height:42px;min-height:42px;padding-inline:14px;font-size:14px;display:inline-flex}.app-main{padding:4px 12px 8px}.app-shell.is-game-active .app-main{padding-top:2px}.game-layout{flex-direction:column;align-items:stretch;gap:8px;display:flex}.board-zone{order:1;grid-area:auto}.side-rail{order:2;grid-area:auto;width:100%}.board-zone,.session-panel,.screen-panel{padding:6px}.board{--board-width:min(100%, calc((100svh - 218px) * .75));gap:4px;padding:6px}.idle-mascot-stage{width:100%;min-height:178px}.idle-mascot{width:min(86%,320px)}.app-shell.is-game-active .board{--board-width:min(100%, calc((100svh - 104px) * .75))}.session-panel{box-sizing:border-box;gap:8px;width:100%}.panel-actions{display:none}.meter-block{gap:6px}.meter-title{font-size:15px}.meter{height:9px}.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;width:100%}.stat-item{text-align:center;gap:4px;min-width:0;min-height:48px;padding:7px 4px}.stat-item span{font-size:10px}.stat-item strong{font-size:17px}.message-strip{min-height:34px;padding:7px 9px;font-size:13px}.side-mascot{display:none}.bottom-nav{z-index:9;width:100vw;padding:8px 12px max(8px, env(safe-area-inset-bottom));border-radius:0;gap:7px;position:fixed;left:0;right:0}.bottom-nav button span{font-size:11px}}