/* Classic Chapter Books (Grades 3-5). Barn-and-web theme. v1 */
:root{--ink:#2a2118;--paper:#fffaf0;--bg:#f6ecd9;--barn:#a8322a;--barn-dark:#7a2019;--hay:#e9b949;--pig:#f4a7b9;--sky:#3c6e9e;--grass:#4f7f3a;--line:#e3d3b4;
--round:"Nunito","Trebuchet MS",ui-rounded,system-ui,-apple-system,"Segoe UI",sans-serif;--radius:1.3rem;--shadow:0 3px 0 rgba(42,33,24,.12),0 10px 22px rgba(42,33,24,.08);
--ra-accent:#a8322a;--ra-accent-ink:#fff;--ra-highlight:#e9b949;--ra-highlight-bg:#fff6d8;--ra-radius:999px;--ra-font-size:1.2rem}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--round);font-size:19px;line-height:1.6}
a{color:#1f4f7d}a:hover{color:var(--barn)}
a:focus-visible,button:focus-visible{outline:4px solid var(--sky);outline-offset:3px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:10}.skip:focus{left:0}
.wrap{max-width:60rem;margin:0 auto;padding:0 1rem}
header.site{background:var(--barn-dark);color:#fff;border-bottom:6px solid var(--hay)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem;padding:.6rem 1rem}
.brand{color:#fff;text-decoration:none;font-weight:800;font-size:1.1rem;display:flex;align-items:center;gap:.5rem;min-height:44px}
.brand svg{width:38px;height:38px}.brand span{color:var(--hay)}
nav.section ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.3rem}
nav.section a{color:#fff;text-decoration:none;font-weight:700;font-size:.85rem;padding:.3rem .7rem;border-radius:999px;border:2px solid rgba(255,255,255,.4);min-height:44px;display:inline-flex;align-items:center}
.hero{text-align:center;padding:1rem 0 .5rem}
.kicker{margin:.6rem 0 0;font-weight:800;color:var(--barn);letter-spacing:.04em;text-transform:uppercase;font-size:.9rem}
h1{font-size:clamp(2.1rem,8vw,3.4rem);line-height:1.1;margin:.15em 0;color:var(--barn-dark)}
.tag{font-size:1.2rem;margin:0 auto .6rem;max-width:30em}
.hero svg{width:min(100%,560px);height:auto;display:block;margin:0 auto}
.block{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.2rem 1.2rem 1.4rem;margin:1.6rem 0}
h2{font-size:clamp(1.5rem,5vw,2rem);color:var(--barn-dark);margin:.2rem 0 .6rem;line-height:1.2}
h3{font-size:1.25rem;margin:.2rem 0 .4rem;color:var(--sky);line-height:1.25}
p{margin:.5em 0;max-width:38em}
.toc ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}
.toc a{display:inline-flex;min-height:44px;align-items:center;padding:.2rem .8rem;background:#fff;border:2px solid var(--line);border-radius:999px;text-decoration:none;font-weight:700}
.brief{background:#fff;border:3px dashed var(--line);border-radius:1rem;padding:.8rem 1rem}
.parts{list-style:none;margin:0;padding:0;display:grid;gap:1rem}
.parts li{background:#fff;border-radius:1rem;padding:.9rem 1rem;border-left:10px solid var(--grass)}
.parts li:nth-child(2n){border-left-color:var(--sky)}
.num{display:inline-block;background:var(--hay);font-weight:800;border-radius:999px;padding:0 .6rem;font-size:.85rem}
.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}
.card{background:#fff;border-radius:1.1rem;padding:1rem;border-top:10px solid var(--pig)}
.card svg{width:90px;height:90px;display:block;margin:0 auto}
.lesson{background:#fff6d8;border:4px solid var(--hay);border-radius:1.2rem;padding:1rem 1.2rem;font-size:1.1rem}
.web-words{display:flex;flex-wrap:wrap;gap:.6rem;list-style:none;padding:0}
.web-words li{background:#fff;border:3px solid var(--line);border-radius:1rem;padding:.4rem .9rem;font-weight:800;letter-spacing:.06em}
.hear{font:inherit;font-size:.9rem;font-weight:800;border:3px solid var(--sky);background:#fff;border-radius:999px;padding:.3rem .8rem;min-height:44px;cursor:pointer;margin-left:.3rem}
fieldset.q{border:3px solid var(--line);border-radius:1rem;margin:0 0 1rem;padding:.8rem 1rem;background:#fff}
fieldset.q legend{font-weight:800;padding:0 .3rem}
.opt{display:block;width:100%;text-align:left;font:inherit;margin:.35rem 0;padding:.5rem .9rem;min-height:44px;border:3px solid var(--line);background:var(--paper);border-radius:.9rem;cursor:pointer}
.opt.right{border-color:var(--grass);background:#e7f4dc}.opt.wrong{border-color:var(--barn);background:#fbe3df;text-decoration:line-through}
.fb{font-weight:800;min-height:1.6em;margin:.3rem 0 0}
.score{font-size:1.2rem;font-weight:800}
.btn{font:inherit;font-weight:800;background:var(--barn);color:#fff;border:0;border-radius:999px;padding:.6rem 1.3rem;min-height:48px;cursor:pointer}
.note{font-size:.95rem;background:#f1ebe0;border-radius:.8rem;padding:.5rem .8rem}
noscript p{background:#fff3b0;padding:.6rem .8rem;border-radius:.8rem}
.pager ul{list-style:none;margin:2rem 0 0;padding:0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:.7rem}
.pager a{display:inline-flex;align-items:center;min-height:52px;padding:.5rem 1.2rem;background:var(--paper);border:3px solid var(--barn);border-radius:999px;font-weight:800;text-decoration:none;color:var(--barn-dark)}
.book-card{display:grid;grid-template-columns:120px 1fr;gap:1rem;align-items:center}
@media(max-width:520px){.book-card{grid-template-columns:1fr}}
footer.site{background:var(--ink);color:#f6ecd9;margin-top:2.5rem;padding:1.5rem 0 2rem}
footer.site a{color:#ffe08a}
nav.jugami-more h2{font-size:1.1rem;color:#fff;margin:0 0 .5rem}
nav.jugami-more ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
nav.jugami-more a{font-weight:700;text-decoration:none;min-height:44px;display:inline-flex;align-items:center;padding:.3rem .8rem;border:2px solid rgba(255,255,255,.4);border-radius:2rem}
.colophon{font-size:.9rem;margin-top:1rem}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.opt:disabled{color:var(--ink);opacity:1;cursor:default}
.opt.right::before{content:"✓ ";font-weight:800}
.opt.wrong::before{content:"✗ "}
.book-card h3 a,.colophon a,#sources a{min-height:44px;display:inline-flex;align-items:center}