:root{color-scheme:dark;--color-bg: #0a0e1a;--color-surface: #141a2e;--color-surface-alt: #1d2540;--color-border: #2c3557;--color-accent-cyan: #35e0f2;--color-accent-pink: #ff6ec7;--color-accent-yellow: #ffe14d;--color-accent-green: #4ade80;--color-text: #f5f7fa;--color-text-muted: #b8c1d9;--color-text-on-accent: #0a0e1a;--color-score: var(--color-accent-yellow);--color-high-score: var(--color-accent-green);--color-label: var(--color-text);--color-instructions: var(--color-text-muted);--focus-ring-color: var(--color-accent-cyan);--focus-ring-width: 3px;--focus-ring-offset: 2px;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2.5rem;--font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;--font-display: "Press Start 2P", "Segoe UI", system-ui, sans-serif;--font-mono: "SFMono-Regular", ui-monospace, "Cascadia Code", monospace;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.25rem;--font-size-xl: 1.75rem;--font-size-2xl: 2.5rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-panel: 0 8px 24px rgba(0, 0, 0, .45);--shadow-glow: 0 0 16px rgba(53, 224, 242, .35);--container-max-width: 1024px;--hub-card-min: 220px;--breakpoint-mobile: 768px;--breakpoint-desktop: 1024px}[data-theme=dark]{color-scheme:dark;--color-bg: #0a0e1a;--color-surface: #141a2e;--color-surface-alt: #1d2540;--color-border: #2c3557;--color-accent-cyan: #35e0f2;--color-accent-pink: #ff6ec7;--color-accent-yellow: #ffe14d;--color-accent-green: #4ade80;--color-text: #f5f7fa;--color-text-muted: #b8c1d9;--color-text-on-accent: #0a0e1a;--color-score: var(--color-accent-yellow);--color-high-score: var(--color-accent-green);--color-label: var(--color-text);--color-instructions: var(--color-text-muted)}[data-theme=light]{color-scheme:light;--color-bg: #eef1f7;--color-surface: #ffffff;--color-surface-alt: #e3e8f4;--color-border: #cbd3e6;--color-accent-cyan: #0e7490;--color-accent-pink: #b5197f;--color-accent-yellow: #7a5d00;--color-accent-green: #157f3b;--color-text: #14192e;--color-text-muted: #4a5578;--color-text-on-accent: #ffffff;--color-score: var(--color-accent-yellow);--color-high-score: var(--color-accent-green);--color-label: var(--color-text);--color-instructions: var(--color-text-muted)}*,*:before,*:after{box-sizing:border-box}html{overflow-x:hidden}body{margin:0;min-height:100vh;max-width:100%;overflow-x:hidden;font-family:var(--font-sans);font-size:var(--font-size-base);line-height:1.5;color:var(--color-text);background-color:var(--color-bg);background-image:radial-gradient(circle at 20% -10%,rgba(53,224,242,.1),transparent 45%),radial-gradient(circle at 85% 0%,rgba(255,110,199,.1),transparent 45%);background-attachment:fixed;-webkit-font-smoothing:antialiased}img,canvas,svg{display:block;max-width:100%}h1,h2,h3{margin:0 0 var(--space-md);line-height:1.15;color:var(--color-text)}:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset);border-radius:var(--radius-sm)}a:focus,button:focus,[tabindex]:focus,input:focus,select:focus,textarea:focus{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.arcade-container{width:100%;max-width:var(--container-max-width);margin-inline:auto;padding-inline:var(--space-md);padding-block:var(--space-lg)}.arcade-layout{display:flex;flex-direction:column;gap:var(--space-lg);min-height:100vh}.arcade-header{display:flex;justify-content:flex-end;align-items:center;width:100%;max-width:var(--container-max-width);margin-inline:auto;padding:var(--space-md) var(--space-md) 0}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;color:var(--color-text);background-color:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease}.theme-toggle:hover{border-color:var(--color-accent-cyan);background-color:var(--color-surface);color:var(--color-accent-cyan)}.theme-toggle__icon{width:22px;height:22px}.hub{display:flex;flex-direction:column;gap:var(--space-lg)}.hub__title{font-family:var(--font-display);font-size:var(--font-size-2xl);text-align:center;color:var(--color-accent-cyan);text-shadow:var(--shadow-glow);letter-spacing:.04em}.hub-grid{display:grid;grid-template-columns:1fr;gap:var(--space-md);width:100%}.hub-card{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-lg);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel);transition:transform .12s ease,border-color .12s ease,box-shadow .12s ease,background-color .12s ease}.hub-card:hover{transform:translateY(-3px);border-color:var(--color-accent-cyan);box-shadow:var(--shadow-panel),var(--shadow-glow)}.hub-card__play{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-sm);text-align:center;color:var(--color-text);background-color:transparent;border:none;border-radius:var(--radius-md);cursor:pointer}.hub-card:hover .hub-card__play{background-color:var(--color-surface-alt)}.hub-card__icon{width:96px;height:auto;max-width:100%;margin-bottom:var(--space-xs);color:var(--color-accent-cyan);filter:drop-shadow(0 0 6px currentColor)}.hub-card[data-game-id=block-cascade] .hub-card__icon{color:var(--color-accent-cyan)}.hub-card[data-game-id=serpent] .hub-card__icon{color:var(--color-accent-green)}.hub-card[data-game-id=maze-muncher] .hub-card__icon{color:var(--color-accent-yellow)}.hub-card[data-game-id=brick-buster] .hub-card__icon{color:var(--color-accent-pink)}.hub-card__name{font-family:var(--font-display);font-size:var(--font-size-base);text-align:center;color:var(--color-accent-cyan)}.hub-card__label{font-size:var(--font-size-sm);text-align:center;color:var(--color-instructions)}.hub-card__votes{display:flex;justify-content:center;gap:var(--space-sm);width:100%}.vote-btn{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);font-family:var(--font-sans);font-size:var(--font-size-sm);font-weight:600;color:var(--color-text);background-color:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease}.vote-btn:hover{border-color:var(--color-accent-cyan);background-color:var(--color-surface)}.vote-btn__glyph{font-size:var(--font-size-base);line-height:1}.vote-btn__count{min-width:1.5ch;text-align:right;font-variant-numeric:tabular-nums;color:var(--color-text)}.vote-btn[aria-pressed=true]{color:var(--color-text-on-accent);background-color:var(--color-accent-cyan);border-color:var(--color-accent-cyan)}.vote-btn[aria-pressed=true] .vote-btn__count{color:var(--color-text-on-accent)}.vote-btn[aria-pressed=true]:hover{background-color:var(--color-accent-pink);border-color:var(--color-accent-pink)}.play-area{display:flex;flex-direction:column;gap:var(--space-md);align-items:center;width:100%;padding:var(--space-md);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel)}.play-area__stage{display:flex;justify-content:center;align-items:center;width:100%;max-width:100%}.play-area__canvas{max-width:100%;height:auto;background-color:#000;border-radius:var(--radius-md)}.scoreboard{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--space-lg);width:100%;font-family:var(--font-mono)}.scoreboard__item{display:flex;flex-direction:column;align-items:center;gap:var(--space-xs)}.scoreboard__caption{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-muted)}.scoreboard__score{font-size:var(--font-size-xl);font-weight:700;color:var(--color-score)}.scoreboard__high-score{font-size:var(--font-size-xl);font-weight:700;color:var(--color-high-score)}.instructions{color:var(--color-instructions);font-size:var(--font-size-sm);text-align:center;max-width:60ch}.controls{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--space-sm);width:100%}.btn{font-family:var(--font-sans);font-size:var(--font-size-base);font-weight:600;color:var(--color-label);padding:var(--space-sm) var(--space-lg);background-color:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease}.btn:hover{border-color:var(--color-accent-cyan);background-color:var(--color-surface)}.btn--primary{color:var(--color-text-on-accent);background-color:var(--color-accent-cyan);border-color:var(--color-accent-cyan)}.btn--primary:hover{background-color:var(--color-accent-pink);border-color:var(--color-accent-pink)}.touch-controls{display:none;gap:var(--space-sm);width:100%;justify-content:center}.touch-controls[data-touch=true]{display:flex;flex-wrap:wrap}.touch-controls__btn{min-width:64px;min-height:64px;font-size:var(--font-size-lg);color:var(--color-label);background-color:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md)}@media(min-width:768px){.hub-grid{grid-template-columns:repeat(2,1fr)}.arcade-container{padding-inline:var(--space-lg)}}@media(min-width:1025px){.arcade-container{padding-inline:var(--space-xl)}.hub-grid{grid-template-columns:repeat(auto-fit,minmax(var(--hub-card-min),1fr))}}