.playground-section{margin-top:85px;scroll-margin-top:105px}
.playground-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}
.playground-heading h2{font-size:clamp(2rem,3.2vw,2.9rem)}
.playground-heading .eyebrow{margin-bottom:10px}
.playground-heading>a{font-size:.875rem;color:#d6c4de;padding-bottom:4px}
.snake-game{display:grid;grid-template-columns:minmax(240px,540px) minmax(190px,1fr);gap:clamp(25px,5vw,70px);align-items:center;padding:clamp(18px,3vw,40px);border:1px solid #ffffff22;border-radius:24px;background:linear-gradient(140deg,#ffffff08,#ffffff02);box-shadow:inset 0 1px 0 #ffffff16;backdrop-filter:blur(18px)}
.snake-board{position:relative;min-width:0;aspect-ratio:1;border:1px solid #ffffff1f;border-radius:13px;overflow:hidden;background:#09090c}
.snake-board canvas{display:block;width:100%;height:auto;aspect-ratio:1;touch-action:none;outline-offset:-5px}
.snake-board canvas:focus-visible{outline:2px solid #d1b5df}
.snake-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:25px;background:#09090cbd;backdrop-filter:blur(3px)}
.snake-overlay[hidden]{display:none}
.snake-overlay .snake-message{font-family:var(--font-display,Georgia,serif);font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2;max-width:300px;color:#f4eff5}
.snake-overlay .snake-note{font-size:.9375rem;line-height:1.6;color:#bdb4c6;max-width:290px;margin:17px 0 25px}
.snake-overlay button{min-width:145px;background:linear-gradient(125deg,#e8deef,#c7b2d5);color:#141117;border-color:#fff8}
.snake-controls{min-width:0}
.snake-scoreboard{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-block:1px solid #ffffff1f;padding:22px 0 20px;margin-bottom:25px}
.snake-scoreboard dt{font-size:.875rem;color:#b9b0bf;margin-bottom:9px}
.snake-scoreboard dd{font-family:Georgia,serif;font-size:2.9rem;line-height:1;letter-spacing:-.02em;color:#eee7f2;margin:0;font-variant-numeric:tabular-nums}
.snake-controls>.eyebrow{font-size:.8125rem;color:#c7b8d0}
.snake-instructions{font-size:.9375rem;line-height:1.7;max-width:310px;color:#c3b9cb}
.snake-instructions kbd{font-family:inherit;font-size:.8125rem;color:#eee5f1;border:1px solid #ffffff2a;border-radius:5px;padding:3px 6px;background:#ffffff08}
.snake-buttons{display:flex;flex-wrap:wrap;gap:10px;margin:23px 0}
.snake-buttons button{font-size:.875rem;padding:10px 16px;min-height:44px}
.snake-buttons button:disabled{opacity:.4;cursor:default}
.snake-dpad{display:grid;grid-template-columns:repeat(3,48px);grid-template-rows:repeat(2,48px);gap:7px;margin-top:25px;width:max-content}
.snake-dpad button{border:1px solid #ffffff26;border-radius:10px;background:linear-gradient(140deg,#ffffff0e,#ffffff03);color:#e1d5e8;font-size:1.25rem;min-height:48px;touch-action:manipulation}
.snake-dpad button:active{background:#ffffff28}
.snake-dpad button:disabled{opacity:.35;cursor:default}
.snake-dpad button:first-child{grid-column:2}
.snake-dpad button:nth-child(2){grid-column:1;grid-row:2}
.snake-dpad button:nth-child(3){grid-column:2;grid-row:2}
.snake-dpad button:nth-child(4){grid-column:3;grid-row:2}
.snake-touch-note{font-size:.8125rem;line-height:1.6;color:#a9a0b0;margin-top:14px}
.play-page{padding-top:128px;padding-bottom:85px}
.play-page .playground-heading h1{font-size:clamp(2.5rem,4vw,3.5rem)}
.play-page .snake-game{max-width:1000px;margin:auto;grid-template-columns:minmax(240px,470px) minmax(190px,1fr)}
.play-page .playground-heading{max-width:1000px;margin-inline:auto}
@media(max-width:850px){.snake-game{gap:25px;grid-template-columns:minmax(230px,1.2fr) 1fr}.snake-scoreboard dd{font-size:2.3rem}.snake-buttons{gap:8px}.snake-buttons button{padding:9px 11px}}
@media(max-width:620px){.snake-game,.play-page .snake-game{grid-template-columns:1fr;padding:15px;gap:20px}.snake-controls{padding:0 8px 8px;display:grid;grid-template-columns:minmax(0,1fr) 140px;column-gap:12px;align-items:center}.snake-controls>.eyebrow{display:none}.snake-scoreboard{grid-column:1;padding:8px 0 16px;margin:0 0 15px;gap:12px;border-top:0}.snake-scoreboard dd{font-size:2rem}.snake-scoreboard dt{font-size:.8125rem}.snake-instructions{grid-column:1/-1;font-size:.875rem;order:5;max-width:none}.snake-buttons{grid-column:1;grid-row:2;flex-direction:column;margin:0 0 17px;gap:8px}.snake-buttons button{width:100%;font-size:.8125rem;padding:8px;min-height:44px}.snake-dpad{grid-column:2;grid-row:1/3;grid-template-columns:repeat(3,44px);grid-template-rows:repeat(2,48px);gap:4px;margin:0}.snake-dpad button{border-radius:7px}.snake-touch-note{grid-column:1/-1;order:6;margin-top:8px}.playground-heading{align-items:center}.playground-heading>a{max-width:90px;text-align:right;line-height:1.5}.playground-section{margin-top:55px}.play-page{padding-top:105px;padding-bottom:55px}.snake-overlay{padding:20px}.snake-overlay .snake-note{font-size:.875rem;margin:13px 0 19px}.snake-overlay .snake-message{font-size:1.7rem}}

.game-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@media(max-width:370px){.snake-controls{grid-template-columns:1fr}.snake-scoreboard,.snake-buttons,.snake-dpad,.snake-instructions,.snake-touch-note{grid-column:1;grid-row:auto}.snake-dpad{margin:0 auto 20px}.snake-buttons{flex-direction:row}.snake-buttons button{width:auto;flex:1}}

/* Shared arcade controls. */
.snake-game{row-gap:22px}
.arcade-toolbar{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.arcade-selector{display:flex;gap:4px;padding:4px;border:1px solid #ffffff25;border-radius:999px;background:#ffffff06}
.arcade-selector button{font:inherit;font-size:.9375rem;min-width:98px;min-height:44px;padding:9px 19px;border:1px solid transparent;border-radius:999px;background:transparent;color:#bbb3c4;cursor:pointer;transition:background .2s,color .2s}
.arcade-selector button[aria-pressed=true]{background:#e4d9eb;color:#1c1723;border-color:#ffffff60}
.arcade-selector button:focus-visible{outline:2px solid #ecbddd;outline-offset:3px}
.arcade-extra{font-size:.875rem;color:#d1c5d9;font-variant-numeric:tabular-nums}
.arcade-extra[hidden]{display:none}
[data-game-mode=pacman] .snake-overlay button{background:#f0d884;color:#201b0c}
@media(max-width:620px){.arcade-toolbar{gap:10px}.arcade-selector button{min-width:92px;padding:8px 16px}.arcade-extra{font-size:.875rem}.snake-game{row-gap:18px}}

/* Sudoku shares the quiet glass arcade, with native keyboard/touch cells. */
.snake-board[hidden],.snake-controls[hidden],.sudoku-panel[hidden]{display:none}
.sudoku-panel{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(220px,1fr);gap:clamp(24px,4vw,52px);align-items:center;min-width:0}
.sudoku-board{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));aspect-ratio:1;border:2px solid #aaa1b6;border-radius:9px;overflow:hidden;background:#0c0b10;align-self:start}
.sudoku-cell{appearance:none;border:0;border-right:1px solid #ffffff19;border-bottom:1px solid #ffffff19;border-radius:0;margin:0;padding:0;min-width:0;aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:#0c0b10;color:#c7a7e6;font:500 clamp(1rem,2.4vw,1.7rem)/1 system-ui,sans-serif;cursor:pointer;position:relative;touch-action:manipulation}
.sudoku-cell:nth-child(3n){border-right:2px solid #aaa1b6}
.sudoku-cell:nth-child(9n){border-right:0}
.sudoku-cell:nth-child(n+19):nth-child(-n+27),.sudoku-cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #aaa1b6}
.sudoku-cell:nth-child(n+73){border-bottom:0}
.sudoku-cell.is-given{color:#ece8ee;font-weight:650}
.sudoku-cell.is-related{background:#18151e}
.sudoku-cell.is-same{background:#332b40}
.sudoku-cell.is-selected{background:#ddd0e9;color:#1d1527;box-shadow:inset 0 0 0 2px #f7edff;z-index:1}
.sudoku-cell.is-error{color:#ffb4b6;background:#52292f}
.sudoku-cell.is-selected.is-error{box-shadow:inset 0 0 0 2px #ffbcc2}
.sudoku-cell:focus-visible{outline:2px solid white;outline-offset:-4px;z-index:2}
.sudoku-pencil{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:90%;height:90%;font-size:clamp(.625rem,1.05vw,.8125rem);line-height:1;color:#c4afda}
.sudoku-pencil span{display:flex;justify-content:center;align-items:center}
.is-selected .sudoku-pencil{color:#463353}
.sudoku-controls{min-width:0}
.sudoku-controls .snake-scoreboard{gap:12px;margin-bottom:18px;padding:18px 0}
.sudoku-controls .snake-scoreboard dd{font-size:clamp(1.65rem,3vw,2.3rem);white-space:nowrap}
.sudoku-controls>.eyebrow{color:#c7b8d0;font-size:.8125rem}
.sudoku-keypad{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:4px;margin:21px 0 15px}
.sudoku-keypad button{min-width:0;min-height:44px;padding:0;border:1px solid #ffffff2e;border-radius:7px;background:#ffffff09;color:#eee7f2;font:500 1.15rem/1 system-ui;touch-action:manipulation;cursor:pointer}
.sudoku-keypad button:active{background:#e4d9eb;color:#1c1723}
.sudoku-actions{display:flex;gap:8px;flex-wrap:wrap}
.sudoku-actions .button,.sudoku-new-game .button{font-size:.875rem;min-height:44px;padding:9px 13px;cursor:pointer}
.sudoku-actions [aria-pressed=true]{background:#e4d9eb;color:#1c1723}
.sudoku-panel button:disabled{opacity:.35;cursor:default}
.sudoku-new-game{display:flex;flex-wrap:wrap;gap:12px;align-items:end;border-top:1px solid #ffffff20;padding-top:20px;margin-top:20px}
.sudoku-new-game label{display:flex;flex-direction:column;gap:6px;font-size:.875rem;color:#bfb3c9;flex:1;min-width:105px}
.sudoku-new-game select{color:#ece5f2;background:#19151e;border:1px solid #ffffff2e;border-radius:8px;min-height:44px;font:inherit;padding:9px 28px 9px 10px;color-scheme:dark}
.sudoku-status{min-height:3.2em;margin-top:18px;font-size:.9375rem;line-height:1.6;color:#dfcce9}
[data-complete=true] .sudoku-board{border-color:#d9c4e8;box-shadow:0 0 0 3px #d9c4e822}
@media(max-width:1050px) and (min-width:621px){.sudoku-keypad{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media(max-width:620px){.arcade-selector{width:100%}.arcade-selector button{flex:1;min-width:0;padding:8px 9px;font-size:.875rem}.sudoku-panel{grid-template-columns:minmax(0,1fr);gap:20px}.sudoku-cell{font-size:clamp(1rem,5vw,1.5rem)}.sudoku-controls{padding:0 3px}.sudoku-controls .snake-scoreboard{display:flex;justify-content:space-between;border-top:0}.sudoku-controls>.eyebrow{display:none}.sudoku-controls .snake-instructions{font-size:.9375rem;max-width:none}.sudoku-keypad{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.sudoku-pencil{font-size:clamp(.6rem,2.5vw,.875rem)}.sudoku-controls .snake-touch-note{font-size:.875rem}}