@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";
:root{--bg-primary:#faf8ef;--bg-board:#bbada0;--bg-cell:#eee4da59;--tile-2:#eee4da;--tile-4:#ede0c8;--tile-8:#f2b179;--tile-16:#f59563;--tile-32:#f67c5f;--tile-64:#f65e3b;--tile-128:#edcf72;--tile-256:#edcc61;--tile-512:#edc850;--tile-1024:#edc53f;--tile-2048:#edc22e;--tile-super:#3c3a32;--text-dark:#776e65;--text-light:#f9f6f2;--text-heading:#635b52;--text-body:#776e65;--text-muted:#a39b8f;--btn-bg:#8f7a66;--btn-bg-hover:#9f8b77;--btn-text:#f9f6f2;--score-bg:#bbada0;--score-text:#eee4da;--score-value:#fff;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 2px 8px #0000000f;--shadow-md:0 4px 16px #00000014;--shadow-lg:0 8px 30px #0000001a;--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--gap:12px;--board-padding:14px;--border-radius:8px;--border-radius-lg:12px;--font-primary:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--move-duration:.1s;--appear-duration:.2s;--pop-duration:.2s;--transition-fast:.15s ease;--transition-normal:.25s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-primary);background:var(--bg-primary);color:var(--text-body);min-height:100vh;font-size:15px;line-height:1.65}a{color:var(--text-heading);transition:opacity var(--transition-fast);text-decoration:none}a:hover{opacity:.75}h1,h2,h3{color:var(--text-heading);font-weight:var(--font-weight-bold);line-height:1.25}button{cursor:pointer;font-family:var(--font-primary);border:none}.container{max-width:520px;margin:0 auto;padding:0 20px}.container-wide{max-width:720px;margin:0 auto;padding:0 24px}::selection{background:var(--tile-128);color:var(--text-light)}.content-page{padding:40px 0 64px}.content-page h1{letter-spacing:-.02em;margin-bottom:6px;font-size:1.85rem}.content-page h2{letter-spacing:-.01em;margin-top:36px;margin-bottom:12px;font-size:1.35rem}.content-page h3{margin-top:24px;margin-bottom:8px;font-size:1.1rem}.content-page p{margin-bottom:16px;font-size:.95rem;line-height:1.75}.content-page ul,.content-page ol{margin-bottom:18px;padding-left:24px}.content-page li{margin-bottom:6px;font-size:.95rem;line-height:1.7}.content-page strong{font-weight:var(--font-weight-semibold);color:var(--text-heading)}@media (max-width:520px){:root{--gap:10px;--board-padding:10px}body{font-size:14px}.container{padding:0 14px}.container-wide{padding:0 18px}.content-page h1{font-size:1.5rem}}