:root{--color-primary:#2f6fed;--color-primary-strong:#1f56c4;--color-primary-tint:#e8f0ff;--color-accent:#22b8a7;--color-accent-strong:#0b7a6e;--color-accent-tint:#dff6f2;--color-stop:#d92d3a;--color-stop-strong:#a81f2b;--color-stop-tint:#fdebed;--color-bg:#f5f8ff;--color-surface:#fff;--color-text:#17202f;--color-text-muted:#52607a;--color-border:#d6e0f2;--color-focus:#ff9f1c;--on-primary:#fff;--font-sans:system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;--font-mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:999px;--shadow-sm:0 1px 3px #17202f14;--shadow-md:0 4px 16px #17202f1a;--shadow-lg:0 12px 32px #2f6fed29;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--gutter:var(--space-4);--tap-min:48px;--width-wide:1040px;--width-game:680px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-bg);min-height:100dvh;color:var(--color-text);font-family:var(--font-sans);overflow-wrap:anywhere;flex-direction:column;margin:0;font-size:1rem;line-height:1.6;display:flex}[hidden]{display:none!important}h1,h2,h3{margin:0 0 .5em;line-height:1.25}h1{font-size:clamp(1.6rem,6vw,2.25rem)}h2{font-size:1.25rem}p{margin:0 0 1em}a{color:var(--color-primary-strong)}:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}.skip-link{left:var(--gutter);background:var(--color-surface);padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);z-index:10;position:absolute;top:-100px}.skip-link:focus{top:var(--gutter)}.container{width:100%;max-width:var(--width-wide);padding-inline:var(--gutter);margin-inline:auto}.container--game{max-width:var(--width-game)}.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.site-header__inner{justify-content:space-between;align-items:center;gap:var(--space-3);min-height:64px;display:flex}.site-name{align-items:center;gap:var(--space-2);min-height:var(--tap-min);letter-spacing:.01em;color:var(--color-text);font-size:1.15rem;font-weight:800;text-decoration:none;display:inline-flex}.site-name svg{flex:none}.site-name span{white-space:nowrap}.lang-switch{background:var(--color-primary-tint);border-radius:var(--radius-full);margin:0;padding:0;list-style:none;display:flex}.lang-switch a{min-width:64px;min-height:var(--tap-min);padding-inline:var(--space-3);border-radius:var(--radius-full);color:var(--color-text-muted);white-space:nowrap;justify-content:center;align-items:center;font-size:.9rem;text-decoration:none;display:inline-flex}.lang-switch a[aria-current=true]{background:var(--color-surface);color:var(--color-primary-strong);box-shadow:inset 0 0 0 2px var(--color-primary);font-weight:800}main{padding-block:var(--space-5) var(--space-7);flex:1}.site-footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding-block:var(--space-5);color:var(--color-text-muted);font-size:.875rem}.site-footer__inner{justify-content:space-between;align-items:center;gap:var(--space-2) var(--space-4);flex-wrap:wrap;display:flex}.site-footer strong{color:var(--color-text)}.lead{color:var(--color-text-muted);font-size:1.05rem}.section-title{align-items:center;gap:var(--space-2);margin-bottom:var(--space-4);display:flex}.section-title:before{content:"";background:var(--color-accent);border-radius:3px;width:6px;height:1.1em}.game-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:clamp(20px,3vw,32px);margin:0;padding:0;list-style:none;display:grid}.game-card{background:var(--color-surface);border-radius:var(--radius-lg);height:100%;color:inherit;-webkit-tap-highlight-color:transparent;border:1px solid #17202f14;flex-direction:column;text-decoration:none;transition:box-shadow .3s ease-out,border-color .3s ease-out,translate .3s cubic-bezier(.3,.7,.3,1);display:flex;position:relative;overflow:hidden;box-shadow:0 1px 2px #17202f0f,0 10px 24px -14px #17202f38}.game-card:is([data-live],:focus-visible){border-color:#2f6fed47;box-shadow:0 2px 4px #17202f0f,0 22px 40px -18px #17202f52}.game-card:focus-visible{outline-offset:4px}@media (prefers-reduced-motion:no-preference){.game-card:is([data-live],:focus-visible){translate:0 -3px}.game-card[data-press]{transition-duration:80ms;translate:0 -1px}}.game-card__visual{aspect-ratio:8/5;background:linear-gradient(135deg, var(--color-primary-tint), var(--color-accent-tint));display:block;position:relative;overflow:hidden}.game-card__visual img{object-fit:cover;width:100%;height:100%;display:block}.game-card__visual .cv img{object-fit:fill;width:auto;height:auto}.game-card__visual:after{content:"";background:radial-gradient(circle 160px at var(--px,50%) var(--py,35%), #ffffff21, transparent 70%);opacity:0;pointer-events:none;transition:opacity .4s ease-out;position:absolute;inset:0}.game-card[data-live] .game-card__visual:after{opacity:1}.game-card__body{gap:var(--space-1);padding:var(--space-4) var(--space-5) var(--space-5);flex-direction:column;flex:1;display:flex}.game-card h3{letter-spacing:-.01em;margin:0;font-size:1.3rem;font-weight:800}.game-card p{margin:0 0 var(--space-4);color:var(--color-text-muted);font-size:.95rem}.game-card__cta{align-self:flex-start;align-items:center;gap:var(--space-2);min-height:var(--tap-min);padding-inline:var(--space-5) var(--space-4);border-radius:var(--radius-full);background:var(--color-text);color:#fff;letter-spacing:.04em;margin-top:auto;font-weight:800;transition:background-color .3s ease-out;display:inline-flex}.game-card__cta svg{transition:translate .3s cubic-bezier(.3,.7,.3,1)}.game-card:is([data-live],:focus-visible) .game-card__cta{background:var(--color-primary-strong)}@media (prefers-reduced-motion:no-preference){.game-card:is([data-live],:focus-visible) .game-card__cta svg{translate:3px}}.back-link{min-height:var(--tap-min);align-items:center;font-size:.9rem;display:inline-flex}.game-head{margin-bottom:var(--space-4)}.game-head h1{margin-bottom:var(--space-1)}.game-head .lead{margin:0}.how-to{margin-top:var(--space-6);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.how-to ol{counter-reset:step;gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}.how-to li{align-items:center;gap:var(--space-3);counter-increment:step;display:flex}.how-to li:before{content:counter(step);background:var(--color-accent-tint);width:32px;height:32px;color:var(--color-accent-strong);border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.related{margin-top:var(--space-7)}@media (height<=640px) and (orientation:portrait){.game-head .lead{display:none}}@media (orientation:landscape) and (height<=520px){.site-header__inner{min-height:56px}main{padding-block:var(--space-2) var(--space-5)}.back-link,.game-head .lead{display:none}.game-head{margin-bottom:var(--space-2)}.game-head h1{margin:0;font-size:1.4rem}}@media (width<=480px){main{padding-block:var(--space-3) var(--space-6)}.site-name{font-size:1.05rem}.lang-switch a{min-width:56px}}@media (width<=360px){.site-name svg{display:none}.site-name{font-size:.9rem}.lang-switch a{min-width:0;padding-inline:var(--space-3);font-size:.85rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.about{margin-top:var(--space-6);color:var(--color-text-muted)}.about h2{color:var(--color-text)}.about p:last-child{margin-bottom:0}.has-play-mode{overflow:hidden}[data-play-mode=on][data-play-mode]{z-index:100;overscroll-behavior:contain;width:100%;height:100dvh;position:fixed;inset:0}.play-bar{justify-content:space-between;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);display:none}[data-play-mode=on] .play-bar{display:flex}.play-bar__end{gap:var(--space-2);display:flex}.play-icon{width:var(--tap-min);height:var(--tap-min);background:var(--play-icon-bg,#ffffffb3);color:var(--play-ink,var(--color-text));cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;border:0;border-radius:50%;place-items:center;padding:0;display:grid}.play-icon:active{background:var(--play-icon-bg-active,#fff)}.play-icon[aria-pressed=true] .play-snd-off,.play-icon[aria-pressed=false] .play-snd-on,.play-icon[aria-pressed=false] .play-fs-out,.play-icon[aria-pressed=true] .play-fs-in{display:none}