:root{--background:#f7f7f5;--surface:#fff;--foreground:#242424;--muted-foreground:#6b6b68;--border:#d8d8d3;--link:#2563eb;--link-hover:#1d4ed8;--button:#30302e;--button-hover:#1f1f1d;--button-foreground:#fff;--positive:#2fc463;--positive-background:#e3f9ea;--negative:#b33a3a;--negative-background:#fbeeee;--warning:#765000;--warning-background:#fff7df}*{box-sizing:border-box}html{background:var(--background);color:var(--foreground);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{overflow-wrap:anywhere;min-width:320px;min-height:100dvh;margin:0;font-size:16px;line-height:1.5}.page-container,.game-container{width:min(100% - 32px,640px);min-width:0;margin-inline:auto}.page-container{padding-block:48px}.game-container{min-height:calc(100dvh - 72px);padding-block:24px}h1,h2,p{margin-block-start:0}h1{overflow-wrap:anywhere;font-size:clamp(1.75rem,8vw,2rem);line-height:1.2}h2{font-size:1.25rem;line-height:1.3}a{color:var(--link)}a:hover{color:var(--link-hover)}.eyebrow{color:var(--muted-foreground);letter-spacing:.08em;text-transform:uppercase;font-size:.875rem;font-weight:600}.landing{max-width:560px}.tagline{font-size:1.25rem;font-weight:600}.example-chain{letter-spacing:.06em;flex-wrap:wrap;gap:6px;font-weight:600;display:flex}.start-area{gap:16px;margin-block:24px;display:grid}.placeholder-banner,.fixture-label{border:1px solid var(--warning);background:var(--warning-background);color:#5f4100;padding:12px}.collection-notice p{margin:4px 0 0;font-size:.875rem}.acceptance{align-items:flex-start;gap:10px;display:flex}.acceptance input{flex:none;width:20px;height:20px;margin-top:2px}button{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--foreground);font:inherit;cursor:pointer;border-radius:8px;font-weight:600}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--link);outline-offset:2px}.primary-button,.danger-button,.secondary-button{width:100%;padding:10px 18px}.primary-button{border-color:var(--button);background:var(--button);color:var(--button-foreground)}.primary-button:not(:disabled):hover{background:var(--button-hover)}.secondary-button{background:var(--surface)}.danger-button{border-color:var(--negative);background:var(--surface);color:var(--negative)}.status{min-height:24px;margin:0}.experiment-notice{color:var(--muted-foreground);font-size:.875rem}.experiment-notice p{margin-block:2px}.legal-footer{border-top:1px solid var(--border);width:min(100% - 32px,640px);min-width:0;margin-inline:auto;padding-block:20px}.legal-footer nav{flex-wrap:wrap;gap:20px;display:flex}.legal-document{max-width:640px}.legal-document h2{margin-block-start:1.5rem}.collection-notice-title{margin:12px 0 4px;font-size:1rem;line-height:1.3}.placeholder-banner{font-weight:600}.game-header{justify-content:space-between;align-items:baseline;gap:16px;display:flex}.chain{scroll-snap-type:x proximity;gap:8px;margin:0 0 clamp(24px,8vh,64px);padding:8px 0 12px;list-style:none;display:flex;overflow-x:auto}.chain li{scroll-snap-align:end;flex:none;align-items:center;gap:8px;display:flex}.chain-word{border:1px solid var(--border);background:var(--surface);letter-spacing:.08em;border-radius:6px;padding:6px 9px;font-size:13px;font-weight:600}.chain-word-duplicate{border-color:var(--negative);color:var(--negative);border-width:2px}.word-editor{grid-template-columns:repeat(5,minmax(0,64px));justify-content:center;gap:8px;display:grid}.letter-tile{aspect-ratio:1;border-width:2px;min-height:52px;font-size:clamp(1.35rem,7vw,2rem)}.letter-tile[aria-pressed=true]{border-color:var(--link);box-shadow:inset 0 0 0 1px var(--link)}.letter-tile[aria-invalid=true]{border-color:var(--negative);box-shadow:inset 0 0 0 1px var(--negative);border-style:double}.instruction{text-align:center;min-height:48px;margin:14px 0}.instruction.error{background:var(--negative-background);color:var(--negative);border-radius:6px;padding:8px}.game-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.keyboard{gap:6px;margin-block-start:24px;display:grid}.keyboard-row{justify-content:center;gap:4px;width:100%;display:flex}.keyboard-row button{flex-direction:column;flex:1 1 0;justify-content:center;align-items:center;min-width:0;max-width:min(9vw,48px);height:44px;padding:0;line-height:1;display:inline-flex}.key-uses{justify-content:center;align-items:center;gap:3px;min-height:6px;margin-top:3px;display:flex}.key-use-dot{background:var(--positive);border-radius:50%;width:5px;height:5px}.keyboard-row button[data-exhausted=true]{box-shadow:inset 0 -3px 0 var(--muted-foreground);cursor:not-allowed;border-style:dashed}.keyboard-row button[aria-disabled=true]{opacity:.72}.dialog-backdrop{z-index:10;background:#24242473;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.stuck-dialog{border:1px solid var(--border);background:var(--surface);border-radius:8px;width:min(100%,440px);padding:24px}.dialog-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.ended-state{border-top:1px solid var(--border);padding-block:24px}.result-card{border:1px solid var(--border);background:var(--surface);border-radius:10px;max-width:520px;margin-inline:auto;padding:clamp(20px,6vw,32px)}.result-count{font-size:1.25rem;font-weight:700}.result-path{flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0;list-style:none;display:flex}.result-path li{align-items:center;gap:8px;display:flex}.result-path li span:first-child{border:1px solid var(--border);letter-spacing:.06em;border-radius:6px;padding:5px 8px;font-weight:600}.alternative{border-inline-start:4px solid var(--link);margin-block:24px;padding-inline-start:16px}.alternative h2{margin-bottom:6px}.fixture-label{font-size:.875rem}.survey form,.thanks{gap:20px;display:grid}.survey fieldset{border:1px solid var(--border);border-radius:8px;min-width:0;margin:0;padding:16px}.survey legend,.textarea-field>label{font-weight:600}.survey-options{gap:8px;margin-block-start:10px;display:grid}.survey-options label{align-items:flex-start;gap:8px;display:flex}.survey-options input{flex:none;width:18px;height:18px;margin-top:3px}.rating-options{grid-template-columns:repeat(5,minmax(0,1fr))}.rating-options label{text-align:center;justify-items:center;gap:4px;display:grid}.textarea-field{gap:6px;display:grid}.textarea-field textarea{resize:vertical;border:1px solid var(--border);background:var(--surface);width:100%;min-height:140px;color:var(--foreground);font:inherit;border-radius:8px;padding:10px}.field-help,.field-error{margin:0;font-size:.875rem}.field-help{color:var(--muted-foreground)}.field-error{color:var(--negative);margin-block-start:8px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (max-width:359px){.page-container,.game-container,.legal-footer{width:min(100% - 24px,640px)}.word-editor{gap:5px}.game-actions,.dialog-actions{grid-template-columns:1fr}}@media (max-height:520px) and (orientation:landscape){.game-container{padding-block:10px}.chain{margin-bottom:8px}.keyboard{margin-block-start:8px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}@media (forced-colors:active){button,.letter-tile[aria-pressed=true],.letter-tile[aria-invalid=true],.chain-word-duplicate,.keyboard-row button[data-exhausted=true]{forced-color-adjust:auto}.letter-tile[aria-invalid=true],.chain-word-duplicate{outline-offset:2px;outline:3px solid buttontext}.key-use-dot{background:buttontext;border:1px solid buttontext}}