:root{--color-forest:#1f4d3a;--color-forest-dark:#143528;--color-amber:#c98f1f;--color-ink:#14261d;--color-muted:#4a5c52;--color-surface:#fff;--color-background:#f4f7f4;--color-border:#d6e0d8;--color-focus:#1f4d3a;--radius-sm:8px;--radius-md:14px;--radius-lg:22px;--space-xs:.5rem;--space-sm:.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2.5rem;--content-width:44rem;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:radial-gradient(120% 80% at 50% 0%, #e8f0e8 0%, var(--color-background) 55%), var(--color-background);min-height:100vh;color:var(--color-ink);font-family:var(--font-sans);margin:0;font-size:1rem;line-height:1.6}img,svg{max-width:100%;display:block}a{color:var(--color-forest)}:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px;border-radius:4px}.page{flex-direction:column;min-height:100vh;display:flex}.site-header{padding:max(var(--space-md), env(safe-area-inset-top,0px)) var(--space-md) 0}.brand{align-items:center;gap:var(--space-sm);color:var(--color-forest-dark);letter-spacing:.01em;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{background:radial-gradient(circle at 50% 35%, var(--color-amber) 0 18%, transparent 19%), linear-gradient(160deg, var(--color-forest) 0%, var(--color-forest-dark) 100%);border-radius:50%;width:1.75rem;height:1.75rem}.brand-name{font-size:1.05rem}.content{width:100%;max-width:var(--content-width);padding:var(--space-xl) max(var(--space-md), env(safe-area-inset-right,0px)) var(--space-xl) max(var(--space-md), env(safe-area-inset-left,0px));flex:1;margin:0 auto}.hero{margin-bottom:var(--space-xl)}.eyebrow{margin:0 0 var(--space-sm);color:var(--color-forest);letter-spacing:.08em;text-transform:uppercase;font-size:.85rem;font-weight:600}h1{margin:0 0 var(--space-md);letter-spacing:-.01em;font-size:clamp(2rem,8vw,2.75rem);line-height:1.15}h2{margin:0 0 var(--space-md);font-size:1.2rem;line-height:1.3}.lead{max-width:34rem;color:var(--color-muted);margin:0;font-size:1.05rem}.card{padding:var(--space-lg);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:0 10px 30px #14261d0f}.code-form{gap:var(--space-xs);flex-direction:column;display:flex}.field-label{font-weight:600}.field-hint{margin:0 0 var(--space-xs);color:var(--color-muted);font-size:.9rem}.field-input{border:1px solid var(--color-border);border-radius:var(--radius-sm);width:100%;min-height:48px;color:var(--color-ink);font:inherit;letter-spacing:.12em;text-transform:uppercase;background:#fbfdfb;padding:.75rem .9rem}.field-input:focus{border-color:var(--color-forest)}.button-primary{min-height:48px;margin-top:var(--space-sm);border-radius:var(--radius-sm);background:var(--color-forest);color:#fff;font:inherit;cursor:pointer;border:0;padding:.75rem 1.25rem;font-weight:600}.button-primary:hover:not(:disabled){background:var(--color-forest-dark)}.button-primary:disabled{cursor:not-allowed;background:#9fb3a7}.notice{margin:var(--space-md) 0 0;padding:var(--space-sm) var(--space-md);border-left:4px solid var(--color-amber);border-radius:var(--radius-sm);color:var(--color-ink);background:#fdf7e8;font-size:.95rem}.steps{margin-top:var(--space-xl)}.steps ol{color:var(--color-muted);margin:0;padding-left:1.25rem}.steps li{margin-bottom:var(--space-xs)}.site-footer{padding:var(--space-lg) var(--space-md);text-align:center;color:var(--color-muted);font-size:.85rem}.stage-progress{margin:0 0 var(--space-xs);color:var(--color-forest);letter-spacing:.08em;text-transform:uppercase;font-size:.85rem;font-weight:600}.clue{margin:var(--space-md) 0;padding:var(--space-md);border-left:4px solid var(--color-forest);border-radius:var(--radius-sm);background:#eef4ef;font-size:1.05rem}.feedback{margin:var(--space-md) 0;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);font-weight:600}.feedback-error{border-left:4px solid var(--color-danger);color:#7a1620;background:#fdf0f0}.actions{margin-top:var(--space-md)}.actions-secondary{margin-top:var(--space-lg);padding-top:var(--space-md);border-top:1px solid var(--color-border)}.button-secondary{border:1px solid var(--color-border);border-radius:var(--radius-sm);min-height:44px;color:var(--color-forest-dark);font:inherit;cursor:pointer;background:0 0;padding:.6rem 1.1rem;font-weight:600}.button-secondary:hover:not(:disabled){background:#eef4ef}.answer-box{margin:var(--space-lg) 0;padding:var(--space-lg);border:2px dashed var(--color-forest);border-radius:var(--radius-md);text-align:center;background:#eef4ef}.answer-box .field-hint{margin:0}.answer-code{margin:var(--space-xs) 0 0;letter-spacing:.08em;word-break:break-word;font-size:1.6rem;font-weight:700}.completion{text-align:center}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.memory-status{gap:var(--space-md);margin:var(--space-md) 0;color:var(--color-muted);flex-wrap:wrap;font-weight:600;display:flex}.memory-grid{gap:var(--space-sm);grid-template-columns:repeat(4,1fr);margin:0;padding:0;list-style:none;display:grid}.memory-card{aspect-ratio:1;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;background:linear-gradient(160deg,#eef4ef,#dfe9e1);place-items:center;width:100%;min-height:56px;font-size:1.75rem;transition:background .15s;display:grid}.memory-card:hover:not(:disabled){border-color:var(--color-forest)}.memory-card.is-open{background:#fff}.memory-card.is-matched{border-color:var(--color-forest);cursor:default;opacity:.85;background:#e6f2e9}.memory-card:disabled{cursor:default}.memory-glyph{line-height:1}@media (prefers-reduced-motion:reduce){.memory-card{transition:none}}.snake-board{width:100%;max-width:26rem;margin:var(--space-md) auto;background:var(--color-forest-dark);border-radius:var(--radius-sm);aspect-ratio:1;gap:1px;padding:2px;display:grid}.snake-grid--10{grid-template-columns:repeat(10,1fr)}.snake-grid--11{grid-template-columns:repeat(11,1fr)}.snake-grid--12{grid-template-columns:repeat(12,1fr)}.snake-grid--13{grid-template-columns:repeat(13,1fr)}.snake-grid--14{grid-template-columns:repeat(14,1fr)}.snake-grid--15{grid-template-columns:repeat(15,1fr)}.snake-grid--16{grid-template-columns:repeat(16,1fr)}.snake-grid--17{grid-template-columns:repeat(17,1fr)}.snake-grid--18{grid-template-columns:repeat(18,1fr)}.snake-grid--19{grid-template-columns:repeat(19,1fr)}.snake-grid--20{grid-template-columns:repeat(20,1fr)}.snake-grid--21{grid-template-columns:repeat(21,1fr)}.snake-grid--22{grid-template-columns:repeat(22,1fr)}.snake-grid--23{grid-template-columns:repeat(23,1fr)}.snake-grid--24{grid-template-columns:repeat(24,1fr)}.snake-cell{aspect-ratio:1;color:#fff;background:#f4f7f4;border-radius:1px;place-items:center;font-size:.55rem;line-height:1;display:grid}.snake-body{background:var(--color-forest)}.snake-head{background:var(--color-forest-dark)}.snake-food{background:var(--color-amber);border-radius:50%}.snake-controls{justify-content:center;align-items:center;gap:var(--space-xs);margin-top:var(--space-md);flex-flow:wrap;display:flex}.snake-arrow{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;min-width:48px;min-height:48px;font-size:1.2rem}@media (width<=40rem){.game-card--controls{padding-bottom:calc(8rem + env(safe-area-inset-bottom,0px))}.game-card--controls.game-card--dpad-controls{padding-bottom:calc(10.5rem + env(safe-area-inset-bottom,0px))}.snake-controls{z-index:40;padding:var(--space-sm) max(var(--space-md), env(safe-area-inset-right,0px)) calc(var(--space-sm) + env(safe-area-inset-bottom,0px)) max(var(--space-md), env(safe-area-inset-left,0px));border-top:1px solid var(--color-border);background:#f4f7f4f7;margin:0;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 16px #14261d14}.snake-controls--dpad{grid-template-rows:repeat(2,56px);grid-template-columns:repeat(3,56px);grid-template-areas:".up.""left down right";place-content:center;display:grid}.snake-controls--dpad.snake-controls--with-advance{grid-template-columns:repeat(4,56px);grid-template-areas:".up.advance""left down right advance"}.snake-arrow--up{grid-area:up}.snake-arrow--left{grid-area:left}.snake-arrow--down{grid-area:down}.snake-arrow--right{grid-area:right}.snake-arrow--advance{grid-area:advance;padding-inline:.25rem;font-size:.95rem}.snake-arrow{min-width:56px;min-height:56px}@supports (height:100dvh){.snake-controls{bottom:auto;top:calc(100dvh - env(safe-area-inset-bottom,0px));padding-bottom:var(--space-sm);transform:translateY(-100%)}}}.snake-summary{margin-top:var(--space-md);color:var(--color-muted)}.mode-options{gap:var(--space-md);margin-top:var(--space-lg);display:grid}@media (width>=40rem){.mode-options{grid-template-columns:1fr 1fr}}.mode-option{padding:var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background:#fbfdfb}.mode-option h2{margin-top:0}.pong-canvas,.breakout-canvas{width:100%;height:auto;margin:var(--space-md) 0;border-radius:var(--radius-md);background:#143528;display:block}.breakout-launch{min-width:64px;padding-inline:.5rem;font-size:.95rem}.maze-header{justify-content:space-between;align-items:flex-start;gap:var(--space-md);flex-wrap:wrap;display:flex}.maze-header-actions{gap:var(--space-xs);flex-wrap:wrap;display:flex}.maze-hud{gap:var(--space-xs) var(--space-md);margin:var(--space-md) 0;color:var(--color-muted);font-variant-numeric:tabular-nums;flex-wrap:wrap;font-size:.95rem;display:flex}.maze-hud strong{color:var(--color-ink)}.maze-stage{margin:var(--space-md) 0;position:relative}.maze-canvas{border-radius:var(--radius-md);touch-action:none;background:#0c1f17;width:100%;height:auto;display:block}.maze-overlay{justify-content:center;align-items:center;gap:var(--space-xs);padding:var(--space-md);border-radius:var(--radius-md);color:#fff;text-align:center;background:#0c1f17eb;flex-direction:column;display:flex;position:absolute;inset:0}.maze-overlay h2{color:#ffd166;margin:0}.maze-overlay .feedback{color:#fff}.maze-overlay .actions{justify-content:center;gap:var(--space-xs);flex-wrap:wrap;display:flex}.maze-overlay .button-secondary{color:#fff;border-color:#ffffff8c}.breakout-accessible{gap:var(--space-md);margin-top:var(--space-md);display:grid}.breakout-grid{border-collapse:collapse;table-layout:fixed;width:100%}.breakout-cell{border:1px solid var(--color-border);text-align:center;font-variant-numeric:tabular-nums;padding:.3rem .1rem;font-size:.72rem}.breakout-cell.is-alive{color:var(--color-forest-dark);background:#e0b54a;font-weight:600}.breakout-cell.is-gone{color:#0000;background:#eef2ee}.breakout-columns{gap:var(--space-xs);grid-template-columns:repeat(auto-fit,minmax(48px,1fr));display:grid}.breakout-columns .button-primary,.breakout-columns .button-secondary{min-width:48px;margin-top:0;padding-inline:.4rem}@media (width>=40rem){.breakout-accessible{grid-template-columns:1fr auto;align-items:start}}textarea.field-input{resize:vertical;letter-spacing:normal;text-transform:none}.admin-header{justify-content:space-between;align-items:center;gap:var(--space-md);flex-wrap:wrap;display:flex}.admin-header-actions{align-items:center;gap:var(--space-sm);display:flex}.admin-heading{justify-content:space-between;align-items:flex-start;gap:var(--space-md);margin-bottom:var(--space-md);flex-wrap:wrap;display:flex}.admin-stats{color:var(--color-muted);margin:0;font-size:.9rem}.admin-list{gap:var(--space-xs);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.admin-list-item{width:100%;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);font:inherit;text-align:left;cursor:pointer;background:#fbfdfb;flex-direction:column;align-items:flex-start;gap:.15rem;display:flex}.admin-list-item:hover{background:#eef4ef}.admin-list-title{font-weight:600}.admin-list-meta{color:var(--color-muted);font-size:.85rem}.admin-nodes{margin:0 0 var(--space-md);gap:var(--space-md);counter-reset:node;flex-direction:column;padding:0;list-style:none;display:flex}.admin-node{padding:var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background:#fbfdfb}.admin-node-head{justify-content:space-between;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm);display:flex}.admin-node-key{color:var(--color-muted);font-size:.85em;font-weight:400}.admin-node-actions{gap:.25rem;display:flex}.admin-node-actions button{border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;width:44px;min-height:44px;font-size:1.1rem}.admin-node-actions button:hover{background:#eef4ef}.admin-inline{align-items:center;gap:var(--space-sm);flex-wrap:wrap;display:flex}.admin-number{width:6rem}.admin-actions{gap:var(--space-sm);flex-wrap:wrap;display:flex}.admin-issues{margin:var(--space-md) 0;padding:var(--space-sm) var(--space-md) var(--space-sm) 2rem;border-left:4px solid var(--color-danger);border-radius:var(--radius-sm);color:#7a1620;background:#fdf0f0}.admin-issues li{margin-bottom:.25rem}@media (width>=40rem){.site-header{padding:max(var(--space-lg), env(safe-area-inset-top,0px)) var(--space-lg) 0}.content{padding-inline:max(var(--space-lg), env(safe-area-inset-left,0px)) max(var(--space-lg), env(safe-area-inset-right,0px))}.card{padding:var(--space-xl)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}