:root{--ink:#302c49;--muted:#605975;--purple:#5939a8;--violet:#a582e4;--light:#faf6ff;--cream:#fffbf5;--stroke:#e9dffa;font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--ink);background:var(--cream)}*{box-sizing:border-box}body{margin:0;line-height:1.68}a{color:var(--purple)}.skip{position:absolute;left:-10000px}.skip:focus{left:20px;top:15px;background:white;padding:8px;z-index:30}.shell{max-width:1050px;margin:0 auto;padding:0 23px}.site-head{background:white;border-bottom:1px solid var(--stroke)}.head-flex{display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:80px}.brand{font-size:20px;text-decoration:none;display:flex;align-items:center;gap:6px;font-weight:800}.brand small{font-size:13px;font-weight:650;color:#756893;margin-left:7px}.site-head nav{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;font-weight:700}.intro{padding:15px 0 8px}.crumbs{padding-top:23px;display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px}.kicker{font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:850;color:#6841b1}h1{font-size:clamp(29px,5vw,48px);line-height:1.2;margin:10px 0;color:#442b79;letter-spacing:-.025em}h2{font-size:clamp(20px,2.4vw,26px);line-height:1.25;color:#4d3382;margin:0 0 14px}h3{font-size:17px;color:#583e90}.lead{font-size:clamp(17px,2vw,20px);max-width:740px;color:#59536d;line-height:1.55}.documentary-note{border:1px solid #eadbb6;background:#fff9e8;color:#69552d;padding:14px 19px;border-radius:13px;font-size:13px;line-height:1.6}.panel{background:white;border:1px solid var(--stroke);border-radius:18px;padding:25px 29px;margin:19px 0;box-shadow:0 5px 24px #5326a70b}.panel.accent{background:linear-gradient(110deg,#fff7db,#fffefb);border-color:#f2dfb3}.panel.subtle{background:#fbf8ff}.panel.citation{background:#fbfaff;box-shadow:none}.panel p{margin:9px 0}.fine{color:#777086;font-size:13px}.panel blockquote{margin:0;background:#f6f2ff;padding:16px 18px;border-left:4px solid #9d76dd;border-radius:7px;font-size:17px;font-weight:700}.visual-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0}.visual{background:#faf7ff;border:1px solid #e5daf4;border-radius:14px;padding:15px;min-width:0}.visual h3{margin:0 0 12px}.visual svg{display:block;max-width:100%;height:125px;margin:auto}.visual p{font-size:14px}.quarters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));height:49px;margin:33px 0 44px;border:2px solid #5e4894;border-radius:5px;overflow:hidden}.quarters span,.double-band span{border-right:1px solid #5e4894}.quarters span:last-child,.double-band span:nth-child(4),.double-band span:last-child{border-right:0}.fill{background:#ab83e6}.double-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(2,35px);gap:8px 0;max-width:280px}.double-band span{border-block:1px solid #5e4894}.double-band span:nth-child(4n+1){border-left:1px solid #5e4894}.fraction-extended{padding:15px 20px;background:#f8f4ff;border-radius:12px}.sample-script{font-family:'Comic Sans MS',cursive;font-size:20px;font-style:italic;color:#64439b;background:#fff;padding:13px;border-radius:8px}.chips{display:flex;gap:9px;flex-wrap:wrap}.chips span{padding:8px 11px;background:#f2eaff;border-radius:40px;font-size:13px;font-weight:680}.related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.related a{border:1px solid #dfd4f0;border-radius:11px;padding:14px;text-decoration:none;display:flex;justify-content:space-between;gap:8px;align-items:center;background:#fff}.related a span:first-child{font-size:12px;display:inline-block;background:#efe8fa;padding:5px 8px;border-radius:7px}.related a strong{flex:1;font-size:14px}.source-items{padding:0;list-style:none;display:grid;gap:11px}.source-items li{border:1px solid #eee5f9;border-radius:10px;padding:12px 15px}.source-items li p{color:#6b647f;font-size:14px}.source-items li span{font-size:12px}.site-foot{background:#f5effd;border-top:1px solid var(--stroke);margin-top:46px;padding:22px 0;color:#685b7d;font-size:13px}@media(max-width:750px){.visual-grid{grid-template-columns:1fr}.related{grid-template-columns:1fr}.shell{padding:0 15px}.site-head nav{gap:9px;font-size:12px}.head-flex{min-height:68px}.brand{font-size:17px}.panel{padding:18px 17px;border-radius:13px}.panel blockquote{font-size:15px}.visual svg{max-height:110px}}
/* Curriculum browsing: factual index, no editorial or methodological advice. */
.directory-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.path-link{display:flex;align-items:center;gap:10px;padding:13px 15px;border:1px solid #e5dced;border-radius:11px;background:white;text-decoration:none;min-width:0}.path-link span:first-child{flex:1;font-weight:740;overflow-wrap:anywhere}.path-link small{font-size:.72rem;color:#776c83}.path-link span:last-child{font-weight:750}.source-item-card{margin:0!important;padding:0!important}.source-item-card details{padding:12px 15px}.source-item-card summary{font-weight:680;cursor:pointer}.source-item-card details p{font-weight:400}.source-item-card small{font-size:.75rem;color:#786f84}.source-documents{padding-left:1.3rem}.source-documents li{margin:.65rem 0}.source-set h3{font-size:1rem;margin-top:20px}@media(max-width:700px){.directory-links{grid-template-columns:1fr}.path-link{flex-wrap:wrap}.path-link span:first-child{min-width:55%}}

/* TWC nonnormative source-linked resources v1 */
.pedagogical-options{padding:15px;border:1px solid #e1d4ec;background:#faf7ff;border-radius:11px;margin:14px 0 4px}.pedagogical-options h4{font-size:1rem;color:#554084;margin:0 0 8px}.pedagogical-options li{margin:8px 0}.pedagogical-options li a{font-weight:740}.pedagogical-options li p{font-size:.85rem;color:#625978;margin:3px 0}.pedagogical-options .fine{font-size:.75rem;color:#796e86}