*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:#1c2333;background:#f5f7fb;line-height:1.6}
a{color:#1749B3}
.topbar{background:#fff;border-bottom:2px solid #e3e8f2;position:sticky;top:0;z-index:10}
.topbar .inner{max-width:1000px;margin:0 auto;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.wordmark{font-weight:800;font-size:1.25em;text-decoration:none;color:#1749B3}
.wordmark span{color:#ED3624}
.topnav a{margin-left:18px;text-decoration:none;font-weight:600;color:#3a4664}
.topnav a:hover{color:#1749B3}
main{max-width:1000px;margin:0 auto;padding:26px 20px 60px}
.hero{background:linear-gradient(135deg,#1749B3,#2b6be6);color:#fff;border-radius:18px;padding:44px 36px;margin-bottom:28px}
.hero h1{margin:0 0 10px;font-size:2em;line-height:1.25}
.hero p{margin:6px 0;font-size:1.08em;opacity:.94;max-width:640px}
.hero .cta{display:inline-block;margin-top:18px;background:#fff;color:#1749B3;font-weight:700;text-decoration:none;padding:11px 22px;border-radius:999px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:22px 0}
.card{background:#fff;border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(20,40,90,.06);text-decoration:none;color:inherit;display:block;border-top:4px solid #1749B3}
.card:hover{box-shadow:0 4px 18px rgba(20,40,90,.12)}
.card h3{margin:0 0 6px;color:#1749B3}
.card.alt{border-top-color:#ED3624}
.card.alt h3{color:#ED3624}
.card p{margin:0;color:#4a5470;font-size:.95em}
.crumbs{font-size:.9em;color:#7a86a3;margin-bottom:16px}
.crumbs a{color:#7a86a3;text-decoration:none}
.crumbs a:hover{color:#1749B3}
h1.pagetitle{color:#1749B3;margin:.2em 0 .5em}
.badge{display:inline-block;background:#1749B3;color:#fff;font-weight:700;padding:2px 12px;border-radius:999px;font-size:.8em;letter-spacing:.4px}
.unit{background:#fff;border-radius:14px;padding:18px 22px;margin:14px 0;box-shadow:0 2px 10px rgba(20,40,90,.05)}
.unit h2{margin:0 0 10px;font-size:1.12em;color:#2a3352}
.lessonlist{list-style:none;margin:0;padding:0}
.lessonlist li{padding:7px 0;border-top:1px solid #eef1f7}
.lessonlist li:first-child{border-top:none}
.lessonlist a{text-decoration:none;font-weight:600}
.lessonlist a:hover{text-decoration:underline}
.wip{background:#fff8e6;border:1.5px solid #f4d47c;color:#7a5c00;border-radius:12px;padding:14px 18px;margin:18px 0}
.subteme{background:#fff;border-radius:14px;padding:18px 22px;box-shadow:0 2px 10px rgba(20,40,90,.05)}
.subteme h2{font-size:1.05em;color:#ED3624;margin:0 0 10px}
.subteme ul{margin:0;padding-left:22px}
.subteme li{margin:5px 0}
a.cta-btn{display:inline-block;background:#1749B3;color:#fff;font-weight:700;text-decoration:none;padding:12px 24px;border-radius:999px}
footer{border-top:2px solid #e3e8f2;background:#fff;margin-top:40px}
footer .inner{max-width:1000px;margin:0 auto;padding:22px 20px;color:#66718e;font-size:.9em;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
footer a{color:#1749B3;text-decoration:none}
@media(max-width:560px){.hero{padding:30px 22px}.hero h1{font-size:1.5em}}