:root{--ink:#24211f;--paper:#fff8eb;--pink:#ff6b8a;--blue:#58a6ff;--yellow:#ffd45c;--card:#fffdf7;--line:#2d2926}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:radial-gradient(#e8d9bd 1px,transparent 1px),var(--paper);background-size:18px 18px;font-family:"Hiragino Sans","Yu Gothic",sans-serif;line-height:1.9}a{color:inherit}header{background:var(--card);border-bottom:2px solid var(--line)}.nav{width:min(920px,calc(100% - 28px));margin:auto;display:flex;align-items:center;gap:18px;padding:14px 0;flex-wrap:wrap}.logo{font-weight:900;text-decoration:none;margin-right:auto}.nav a:not(.logo){font-size:.88rem;font-weight:700}main{width:min(780px,calc(100% - 28px));margin:38px auto 70px}.kicker{font-size:.8rem;font-weight:900;letter-spacing:.12em;color:#756d66}h1{font-size:clamp(2rem,7vw,3.8rem);line-height:1.15;margin:.25em 0 .45em;letter-spacing:-.04em}h2{font-size:1.55rem;margin-top:2.2em;border-left:8px solid var(--pink);padding-left:12px;line-height:1.35}h3{margin-top:1.8em}.lead{font-size:1.08rem}.card,.example{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:20px;margin:18px 0;box-shadow:4px 4px 0 var(--line)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid .card{margin:0}.tip{background:#fff0b8;border-left:6px solid var(--yellow);padding:14px 16px;border-radius:8px}.cta{display:inline-block;background:var(--pink);color:#fff;border:2px solid var(--line);box-shadow:3px 3px 0 var(--line);padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:900;margin-top:12px}.palette-row{display:flex;gap:7px}.color{height:38px;flex:1;border:2px solid var(--line);border-radius:8px}footer{text-align:center;padding:28px 14px;border-top:2px solid var(--line);background:var(--card);font-size:.82rem}.links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}@media(max-width:620px){.grid{grid-template-columns:1fr}.nav{gap:12px}.nav a:not(.logo){font-size:.78rem}}