/* R6.20 — launch hardening for story + play worlds. Non-destructive visual layer. */
:root{--r620-glass:rgba(255,255,255,.88);--r620-shadow:0 18px 48px rgba(20,35,72,.14)}
.r620-focus-toggle{border:1px solid rgba(255,255,255,.75);background:var(--r620-glass);color:#24325a;min-height:44px;border-radius:14px;padding:9px 12px;font-weight:900;display:inline-flex;align-items:center;gap:7px;box-shadow:0 7px 20px rgba(30,42,83,.08);cursor:pointer}
.r620-focus-toggle svg{width:18px;height:18px}.r620-focus-mode .r69-story-info{display:none}.r620-focus-mode .r69-reader-shell{grid-template-columns:minmax(0,1fr)!important;max-width:980px;margin-inline:auto}.r620-focus-mode .r69-story-stage{max-width:980px;margin-inline:auto;width:100%}
.r69-story-stage{position:relative;isolation:isolate}.r69-story-stage:after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.42)}
.story-scene-image,.story-scene-photo{image-rendering:auto;transform:translateZ(0)}
.r620-reader-badge{position:absolute;z-index:5;top:13px;right:13px;display:inline-flex;align-items:center;gap:6px;background:rgba(13,35,70,.76);color:#fff;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(10px);padding:7px 10px;border-radius:999px;font-size:.72rem;font-weight:900;pointer-events:none}
.r620-reader-badge i{width:7px;height:7px;border-radius:50%;background:#64e7a9;box-shadow:0 0 0 4px rgba(100,231,169,.16)}
.r620-story-shortcuts{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:8px;color:#75809b;font-size:.72rem;font-weight:800}.r620-story-shortcuts kbd{font:inherit;background:#fff;border:1px solid #dde2ee;border-bottom-width:2px;border-radius:7px;padding:2px 7px;color:#394665}
.r69-play-control,.r69-pause-control{box-shadow:0 9px 24px color-mix(in srgb,var(--story-accent) 24%,transparent)}
.r69-scene-thumb{scroll-snap-align:center}.r69-scene-strip{scroll-snap-type:x proximity;overscroll-behavior-inline:contain}.r69-reading-card{box-shadow:0 14px 38px rgba(31,45,86,.08)}
body[data-view="play_world"] .v55-game-card,body[data-view="play_game"] button{touch-action:manipulation}.v55-game-card{contain:layout paint;transition:transform .18s ease,box-shadow .18s ease}.v55-game-card:focus-visible,.v55-letter-stone:focus-visible,.v55-maze-controls button:focus-visible{outline:3px solid rgba(103,87,245,.28);outline-offset:3px}
.r620-live-region{position:fixed!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.r620-offline-ready{display:inline-flex;align-items:center;gap:6px;color:#177b58;background:#ebfaf3;border:1px solid #c8efdd;border-radius:999px;padding:5px 9px;font-size:.68rem;font-weight:900}.r620-offline-ready:before{content:"✓"}
@media(max-width:760px){.r620-focus-toggle{min-height:42px;padding:8px 10px;font-size:.78rem}.r620-reader-badge{top:10px;right:10px;font-size:.66rem}.r620-story-shortcuts{display:none}.r620-focus-mode .story-scene-visual{min-height:0}.r69-main-controls{position:sticky;bottom:max(8px,env(safe-area-inset-bottom));z-index:12;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border:1px solid rgba(220,225,238,.9);border-radius:20px;padding:8px;box-shadow:var(--r620-shadow)}}
@media(prefers-reduced-motion:reduce){.v55-game-card,.story-scene-image,.story-scene-photo{transition:none!important;animation:none!important}}