:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:#172f40;background:#f6f8f8;line-height:1.65;font-size:16px;font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:#176a78;text-underline-offset:3px}a:hover{color:#0b4650}a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #d7aa55;outline-offset:4px}.resource-header{max-width:1160px;margin:auto;padding:24px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid #dbe4e6}.brand{display:flex;align-items:center;gap:12px;color:#172f40;text-decoration:none;font-size:22px;font-weight:750}.brand small{font-size:13px;font-weight:400;display:block;color:#607987}.resource-header nav{display:flex;flex-wrap:wrap;gap:18px;font-size:14px}.resource-header nav a{min-height:44px;display:inline-flex;align-items:center}main{max-width:1160px;margin:auto;padding:34px 24px 64px}h1{font-size:clamp(28px,4.7vw,45px);line-height:1.2;letter-spacing:-.035em;margin:10px 0 20px;overflow-wrap:anywhere}h2{font-size:25px;line-height:1.35;margin:0 0 18px}h3{font-size:20px;line-height:1.4;margin:12px 0}.eyebrow{font-size:12px;letter-spacing:.06em;color:#4a707b;font-weight:700;margin:0}.lead{font-size:18px;max-width:850px;color:#3d5c6a}.muted,.secondary-title{color:#627985;font-size:14px}.directory-intro,.course-intro{padding:8px 0 30px}.resource-search{display:grid;gap:8px;max-width:640px;margin-top:26px;font-size:14px;font-weight:600}.resource-search input{font:inherit;font-size:16px;min-height:48px;padding:11px 14px;border:1px solid #b8cdd0;border-radius:9px;background:white;color:#172f40;width:100%}.group-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}.group-links a{padding:8px 13px;background:#e8f0f0;border-radius:7px;text-decoration:none;font-size:14px}.course-group{scroll-margin-top:20px;margin:22px 0 42px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.course-card{background:white;border:1px solid #dce6e7;border-radius:12px;padding:23px;display:flex;flex-direction:column;min-width:0}.course-card h3 a{color:#172f40;text-decoration:none}.course-card p{font-size:14px;overflow-wrap:anywhere}.course-card .secondary-title{margin:0}.course-card .card-link{margin-top:auto;padding-top:10px;font-size:14px;font-weight:650;min-height:44px;display:flex;align-items:center}.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:#627985;margin-bottom:30px}.resource-actions{display:flex;flex-wrap:wrap;gap:12px;margin:23px 0 12px}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:8px;text-decoration:none;font-size:15px;font-weight:600}.primary-button{background:#1b6170;color:white}.primary-button:hover{background:#134c58;color:white}.secondary-button{border:1px solid #b9cdd2;background:white}.source-link{font-size:14px}.resource-section{margin:26px 0;padding:28px;background:white;border:1px solid #dce6e7;border-radius:12px}.resource-section>p{color:#526c79;font-size:15px}.resource-files{list-style:none;margin:20px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 25px}.resource-files li{border-bottom:1px solid #e7eeee;padding:10px 0;min-width:0}.resource-files a{overflow-wrap:anywhere;font-size:15px}.resource-files small{display:block;font-size:12px;color:#627985;margin-top:3px}.resource-note{white-space:pre-line;font-size:13px!important;line-height:1.6;overflow-wrap:anywhere}.unit-outline{margin:14px 0;border:1px solid #dce6e7;border-radius:9px;padding:0 18px}.unit-outline summary{display:flex;align-items:center;justify-content:space-between;gap:18px;cursor:pointer;font-weight:650;min-height:58px;padding:14px 0}.unit-outline summary:before{content:'+';color:#176a78}.unit-outline[open] summary:before{content:'−'}.unit-outline summary span{flex:1}.unit-outline summary small{color:#627985;font-size:12px;white-space:nowrap;font-weight:400}.unit-link{font-size:14px;display:inline-block;padding:6px 0}.topic-links{margin:8px 0 22px;padding-left:20px}.topic-links li{padding:8px 0}.topic-links a{font-size:15px;overflow-wrap:anywhere}.topic-links small{display:block;color:#627985;font-size:12px}.back-link{display:inline-block;min-height:44px;padding:12px 0}.resource-footer{border-top:1px solid #dce6e7;padding:26px 24px 40px;max-width:1160px;margin:auto;color:#607987;font-size:13px}.resource-footer>a{margin-left:22px}.resource-footer p{max-width:800px}[hidden]{display:none!important}@media(max-width:900px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.resource-header{padding:16px;align-items:flex-start;gap:14px;flex-direction:column}.resource-header nav{gap:18px}.brand{font-size:20px}main{padding:25px 16px 40px}.course-grid,.resource-files{grid-template-columns:minmax(0,1fr)}.course-card,.resource-section{padding:20px}.lead{font-size:17px}.resource-actions{display:grid;grid-template-columns:minmax(0,1fr)}.unit-outline{padding:0 12px}.unit-outline summary{gap:9px;font-size:15px}.resource-footer{padding:24px 16px}.resource-footer>a{display:block;margin:12px 0 0}.breadcrumbs{font-size:12px}h2{font-size:23px}}

.resource-legal{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12px}.resource-legal a{color:#607987}

/* Topic titles open the existing material chooser, with a clear whole-row target. */
.course-intro{padding-bottom:12px}.course-intro h1{margin-bottom:12px}
.course-intro .lead{margin:10px 0}.course-intro .resource-actions{gap:8px;margin:18px 0 12px}
.course-intro .resource-actions>a{min-height:42px;padding:9px 14px;font-size:14px}
.course-reference-links{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:13px;margin:12px 0 0}
.resource-section{scroll-margin-top:20px}
.topic-links{list-style:none;padding:0;margin:6px 0 14px}.topic-links li{padding:0;border-bottom:1px solid #e7eeee}.topic-links li:last-child{border-bottom:0}
.topic-links .topic-material-link{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:52px;padding:12px 0;color:#172f40;text-decoration:none;border-radius:4px}
.topic-material-link .topic-label{min-width:0}.topic-links .topic-open{flex-shrink:0;font-size:13px;color:#176a78;text-decoration:underline;text-underline-offset:3px}
.topic-material-link:hover .topic-label{color:#176a78;text-decoration:underline;text-underline-offset:3px}
.topic-material-link:hover{background:#f6f9f9}
@media(max-width:600px){.course-intro .resource-actions{display:flex;flex-wrap:wrap}.topic-links .topic-material-link{gap:12px;align-items:flex-start}.topic-links .topic-open{font-size:12px;margin-top:2px}.course-intro{padding-bottom:4px}}

/* Reuse the site's account and Back / Home / language controls. */
.resource-header{--ink:#172f40;--line:#b9cdd2;--glass-button:#fff;--glass-button-hover:#e8f0f0;--accent:#176a78;flex-wrap:nowrap;gap:8px;min-height:88px}
.resource-header>.brand-lockup{display:flex;align-items:center;gap:10px;flex:1 1 auto;min-width:0}
.resource-header .app-logo{width:36px;height:36px;border-radius:50%;object-fit:cover;flex-shrink:0}
.resource-header .brand-lockup>.eyebrow{margin:0;color:var(--ink);font-size:14px;letter-spacing:0;font-weight:750}
.resource-header>.resource-nav-control,.resource-header>.resource-language-switch{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-width:44px;min-height:44px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--glass-button);color:var(--ink);font:600 14px/1.2 system-ui,sans-serif;text-decoration:none;white-space:nowrap}
.resource-header .resource-nav-control{width:44px;padding:6px}
.resource-header .resource-nav-control svg{width:18px;height:18px}
.resource-header>.resource-nav-control:hover,.resource-header>.resource-language-switch:hover{background:var(--glass-button-hover)}
html.account-header-pending .resource-header .brand-lockup>.app-logo,html.account-header-pending .resource-header .brand-lockup>.eyebrow,html.account-header-pending .resource-header>.site-login-link{display:none!important}
@media(max-width:600px){.resource-header{flex-direction:row;align-items:center;padding:16px;min-height:76px}.resource-header>.brand-lockup{gap:6px}.resource-header>.resource-language-switch{padding:6px;font-size:13px}}
@media(max-width:420px){.resource-header .brand-lockup>.eyebrow{display:none}}