:root{--ink:#17251f;--paper:#f6f6ef;--accent:#b8ec64;--line:#d6dbd1}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,.button{background:var(--ink);color:white;border:1px solid var(--ink);border-radius:8px;padding:12px 20px;cursor:pointer;text-decoration:none;display:inline-block;font-weight:650}button:hover,.button:hover{filter:brightness(1.25)}button:disabled{opacity:.5;cursor:default}.secondary{background:transparent;color:var(--ink);border-color:#a4afa6}input,select,textarea{width:100%;background:white;color:var(--ink);border:1px solid #9ca99f;border-radius:7px;padding:12px;min-width:0}input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid #4e75b8;outline-offset:3px}label{display:block;font-size:.9rem;font-weight:650}label input,label select{display:block;margin-top:6px}textarea{display:block;margin:7px 0 16px;font-family:ui-monospace,monospace;resize:vertical}header,main,footer{max-width:1200px;margin:auto;padding:0 36px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:100px;border-bottom:1px solid var(--line)}.brand{font-size:1.4rem;font-weight:850;text-decoration:none;letter-spacing:-1px;display:flex;align-items:center;gap:10px}.mark{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);border-radius:12px;font-family:Georgia,serif;font-size:1.5rem}nav{display:flex;gap:28px;align-items:center;font-size:.9rem}nav a{text-decoration:none}.hero{padding:76px 0 64px;display:grid;grid-template-columns:1.25fr .75fr;gap:70px;align-items:center}.eyebrow{font-size:.73rem;letter-spacing:2px;font-weight:800;text-transform:uppercase}h1{font-family:Georgia,serif;font-size:clamp(2.8rem,5.6vw,5rem);font-weight:400;letter-spacing:-2.5px;line-height:1.06;margin:23px 0}h2{font-family:Georgia,serif;font-weight:400;line-height:1.2;font-size:2.3rem;letter-spacing:-.8px}h3{line-height:1.3}.intro{font-size:1.13rem;max-width:600px;color:#4d5d54}.hero .button{margin-top:16px}.art{aspect-ratio:1;border-radius:50% 50% 12px 50%;background:var(--accent);position:relative;display:grid;place-items:center;overflow:hidden;border:1px solid #0002}.art:before,.art:after{content:'';position:absolute;border:1px solid #17251f55;border-radius:50%;width:85%;height:45%;transform:rotate(45deg)}.art:after{transform:rotate(-45deg)}.art span{font:italic 9rem Georgia,serif;z-index:1}.art small{position:absolute;bottom:36px;letter-spacing:4px;font-size:.65rem}.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.8rem}.section{padding:55px 0}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:20px}.tool{background:white;border:1px solid var(--line);border-radius:18px;display:grid;grid-template-columns:.7fr 1.3fr;overflow:hidden}.tool-info{padding:36px;background:var(--accent)}.tool-info h2{font-size:2rem}.tool-body{padding:36px;min-width:0}.fields{display:flex;gap:16px;margin-bottom:20px}.fields>*{flex:1;min-width:0}.tool-body>label{margin-bottom:18px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}output{display:block;background:#eff3ed;border-radius:8px;padding:18px;margin:20px 0;min-height:64px;font-weight:650;overflow-wrap:anywhere}.error{background:#ffe8e3;color:#8f281d}.small,small{font-size:.8rem;color:#526358}.library-controls{display:grid;grid-template-columns:2fr 1fr;gap:18px;margin:24px 0}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.card{border:1px solid var(--line);border-radius:12px;padding:28px;background:white}.card[hidden]{display:none}.card a{text-decoration:none}.card h3{font:1.7rem/1.2 Georgia,serif;margin:16px 0}.card p{color:#526358}.card .arrow{font-size:1.4rem}.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.mini{border:1px solid var(--line);padding:18px;border-radius:9px}.mini h3{margin-top:0}.mini p{font-size:.9rem}.timeline article{display:grid;grid-template-columns:90px 1fr;border-top:1px solid var(--line);padding:18px 0;gap:16px}.timeline h3{margin:0}.timeline p{margin:8px 0}.flashcard{border:1px solid var(--line);padding:25px;text-align:center;border-radius:12px;background:var(--paper)}.flashcard h3{font:2.7rem Georgia,serif;margin:10px}.timer{font-size:2.7rem;letter-spacing:-1px;padding:20px 0}.sudoku{display:grid;grid-template-columns:repeat(4,1fr);max-width:300px;border:2px solid var(--ink);margin:auto}.sudoku input{border-radius:0;text-align:center;font-size:1.5rem;aspect-ratio:1;padding:8px;border:1px solid #bac5ba}.sudoku input[readonly]{background:#e8ece3;font-weight:800}.sudoku input:nth-child(4n+2){border-right:2px solid var(--ink)}.sudoku input:nth-child(n+5):nth-child(-n+8){border-bottom:2px solid var(--ink)}.orbit-art{height:140px;position:relative;border:1px solid #c7c2dc;border-radius:50%;max-width:300px;margin:20px auto;display:grid;place-items:center}.orbit-art span{font-size:3rem}.orbit-art i{position:absolute;right:0;top:55px;background:#7762c5;width:17px;height:17px;border-radius:50%}footer{border-top:1px solid var(--line);margin-top:50px;padding-top:28px;padding-bottom:32px;font-size:.83rem;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}footer .links{display:flex;flex-wrap:wrap;gap:18px}footer button{font-size:.83rem;padding:0;border:0;background:none;color:var(--ink);text-decoration:underline;font-weight:400}.reading{max-width:760px;padding-top:50px}.reading h1{font-size:3.5rem}.reading h2{font-size:1.8rem;margin-top:38px}.reading p{line-height:1.85}.reading li{margin:10px 0}.breadcrumb{font-size:.85rem}.privacy-panel{position:fixed;bottom:20px;left:20px;right:20px;max-width:620px;background:white;box-shadow:0 10px 70px #0003;border:1px solid var(--line);padding:22px;border-radius:12px;z-index:20}.privacy-panel[hidden]{display:none}.privacy-panel h2{font:1.4rem Georgia,serif;margin:0}.privacy-panel p{font-size:.85rem;margin:12px 0}.privacy-panel .actions{margin-bottom:0}.privacy-panel button{font-size:.8rem;padding:9px 12px}.skip{position:absolute;left:10px;top:-100px;background:white;padding:10px;z-index:100}.skip:focus{top:10px}.badge{font-size:.7rem;background:var(--accent);border-radius:30px;padding:5px 10px}hr{border:0;border-top:1px solid var(--line);margin:28px 0}.notice{padding:18px;background:#fff1d6;border:1px solid #dfc992;border-radius:8px} @media(max-width:760px){header,main,footer{padding-left:20px;padding-right:20px}header{min-height:84px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px}nav{gap:16px}.hero{grid-template-columns:1fr;padding:42px 0;gap:30px}.hero .art{display:none}h1{letter-spacing:-1.5px}.tool{grid-template-columns:1fr}.tool-info,.tool-body{padding:24px}.tool-info h2{margin:12px 0}.fields{flex-wrap:wrap}.fields>*{flex-basis:140px}.grid,.mini-grid{grid-template-columns:1fr}.library-controls{grid-template-columns:1fr}.section{padding:32px 0}.reading h1{font-size:2.6rem}.privacy-panel{left:10px;right:10px;bottom:10px;max-height:70vh;overflow:auto}.timeline article{grid-template-columns:75px 1fr}.section-title{display:block}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}