:root{--navy:#102e4b;--teal:#197a83;--muted:#67788a;--bg:#f4f6f8;--line:#dce4eb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;color:var(--navy);background:var(--bg);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:inherit}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #24a8b7;outline-offset:4px}.shell{max-width:1280px;margin:auto;padding:0 40px}header{background:white;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:15px;text-decoration:none}.brand img{width:66px;height:66px;object-fit:contain}.brand strong{font-size:20px;display:block;letter-spacing:-.4px}.brand small{display:block;font-size:12px;color:var(--muted)}.top{display:flex;align-items:center;justify-content:space-between;min-height:98px;gap:20px}.badge,.eyebrow{font-size:11px;letter-spacing:1.7px;text-transform:uppercase;font-weight:700}.badge{border:1px solid var(--line);border-radius:99px;padding:7px 14px;color:var(--muted)}.hero{padding:54px 0 34px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}.eyebrow{color:var(--teal)}h1{font-size:46px;line-height:1.16;letter-spacing:-1.5px;margin:12px 0 18px}.hero p{color:var(--muted);max-width:570px;margin:0}.hero-stat{display:flex;gap:30px;border-left:1px solid var(--line);padding:12px 0 12px 35px}.hero-stat strong{font-size:34px;line-height:1.2;display:block}.hero-stat span{font-size:13px;color:var(--muted)}.search{position:relative;margin:0 0 34px}.search input{width:100%;padding:18px 22px 18px 50px;border:1px solid var(--line);border-radius:12px;background:white;color:var(--navy)}.search label{position:absolute;left:20px;top:17px;font-size:22px}.layout{display:grid;grid-template-columns:220px 1fr;gap:36px;padding-bottom:60px}.side-title{font-size:11px;color:var(--muted);letter-spacing:1.4px;margin:0 0 13px}.filters{display:grid;gap:7px}.filters button{background:transparent;border:0;text-align:left;padding:12px 14px;border-radius:9px;color:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:14px}.filters button.active{background:var(--navy);color:white}.filters small{opacity:.65}.note{border-top:1px solid var(--line);margin-top:27px;padding-top:20px;font-size:13px;color:var(--muted)}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px;gap:10px}.section-head h2{margin:0;font-size:22px;letter-spacing:-.5px}.section-head span{color:var(--muted);font-size:13px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{background:white;border:1px solid var(--line);border-radius:13px;padding:25px;text-decoration:none;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px #102e4b0b}.card-top{display:flex;justify-content:space-between;align-items:center}.tag{font-size:10px;font-weight:750;letter-spacing:1.4px;color:var(--teal);background:#eaf5f4;padding:4px 9px;border-radius:5px}.past .tag{color:#825b2e;background:#fbf1e5}.future .tag{color:#645a99;background:#f0edf8}.num{color:#9dabb8;font-size:12px}.card h3{font-size:23px;line-height:1.25;margin:23px 0 8px;letter-spacing:-.6px}.card p{font-size:14px;color:var(--muted);margin:0 0 24px}.card-foot{border-top:1px solid #edf0f3;padding-top:15px;display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-top:auto}.card-foot span{color:var(--muted);font-size:12px}.arrow{font-size:19px;color:var(--teal)}footer{border-top:1px solid var(--line);color:var(--muted);font-size:12px;padding:20px 0}.empty{background:white;padding:30px;border:1px solid var(--line);border-radius:12px}.reader-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:32px;margin-top:28px;margin-bottom:60px}.reader-nav{position:sticky;top:24px;align-self:start;max-height:90vh;overflow:auto}.reader-nav a{display:block;font-size:13px;text-decoration:none;padding:7px 0;color:var(--muted)}.reader-nav a:hover{color:var(--teal)}.back{display:inline-block;margin-top:27px;font-size:14px;text-decoration:none;color:var(--teal)}.paper{background:white;border:1px solid var(--line);border-radius:14px;padding:40px;min-width:0}.lesson-hero{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:28px}.lesson-hero h1{font-size:38px}.subtitle{color:var(--muted);margin:0}.reading{font-size:var(--read-size,16px);color:#243e54;line-height:1.8;overflow-wrap:anywhere}.reading h2{font-size:1.35em;color:var(--navy);line-height:1.4;margin:34px 0 16px;padding-top:7px;border-top:2px solid #d9ebee}.reading h3{font-size:1.05em;color:var(--teal);margin:26px 0 12px}.reading p{margin:0 0 16px}.reading .formula{background:#edf6f7;border-left:3px solid var(--teal);padding:16px 20px;font-size:1.2em;color:var(--navy);font-weight:650;border-radius:0 8px 8px 0}.table-wrap{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:8px}table{border-collapse:collapse;width:100%;font-size:.88em;line-height:1.6}th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);border-right:1px solid var(--line);min-width:110px}th{background:var(--navy);color:white;font-weight:600}tr:nth-child(odd) td{background:#f5f8fa}tr:last-child td{border-bottom:0}td:last-child,th:last-child{border-right:0}.tools{display:flex;gap:8px;margin:20px 0 0;align-items:center;color:var(--muted);font-size:12px}.tools button{border:1px solid var(--line);border-radius:6px;background:white;color:var(--navy);padding:5px 12px}.next{display:block;margin-top:35px;border-top:1px solid var(--line);padding-top:22px;text-decoration:none;color:var(--teal)}[hidden]{display:none!important}
@media(max-width:950px){.shell{padding:0 24px}.hero-stat{display:none}.reader-layout{grid-template-columns:1fr}.reader-nav{position:static;max-height:none}.reader-nav details{background:white;border:1px solid var(--line);border-radius:9px;padding:14px}.reader-nav summary{cursor:pointer}.paper{padding:28px}.layout{grid-template-columns:180px 1fr;gap:24px}.grid{grid-template-columns:1fr}}
@media(max-width:600px){.shell{padding:0 18px}.top{min-height:84px}.brand img{width:54px;height:54px}.brand strong{font-size:17px}.brand small{font-size:10px}.badge{display:none}.hero{padding:32px 0 25px}h1{font-size:34px}.hero p{font-size:14px}.search{margin-bottom:23px}.layout{display:block}.filters{display:flex;overflow-x:auto;gap:6px;padding:3px 0 18px}.filters button{white-space:nowrap;background:white;border:1px solid var(--line);padding:9px 12px;font-size:12px}.side-title,.note{display:none}.section-head h2{font-size:20px}.card{padding:22px}.card h3{font-size:23px;margin-top:18px}.paper{padding:22px 18px;border-radius:10px}.lesson-hero h1{font-size:30px;letter-spacing:-.9px}.reader-layout{gap:18px}.reading{font-size:var(--read-size,16px)}th,td{padding:10px;min-width:105px}.tools{flex-wrap:wrap}.reader-nav a{font-size:14px}.reading h2{margin-top:28px}}
@media print{header,.reader-nav,.back,.tools,footer,.next{display:none}.reader-layout{display:block;margin:0}.paper{border:0;padding:0}.shell{max-width:none;padding:0}body{background:white}.table-wrap{overflow:visible}h2,h3{break-after:avoid}tr{break-inside:avoid}}

.hero-quote{margin:0 0 22px;max-width:620px;color:var(--teal)}.hero-quote p{font-family:Georgia,serif;font-style:italic;font-size:18px;line-height:1.55;color:var(--teal);max-width:none}.hero-quote cite{display:block;margin-top:7px;font-size:12px;font-style:normal;color:var(--muted)}
.library-sections {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  width: min(100%, 620px);
  padding: 5px;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}
.library-sections a {
  display: grid;
  place-items: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 650;
  text-align: center;
  text-decoration: none;
}
.library-sections a:hover { background: #edf6f7; }
.library-sections a[aria-current="page"] {
  background: var(--navy);
  color: white;
}
.section-preview { margin-bottom: 60px; }
.section-preview h2 { margin: 0 0 8px; }
.section-preview p { margin: 0; color: var(--muted); }
@media (max-width: 600px) {
  .library-sections a { font-size: 14px; }
}
.account-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--navy);
  color: white;
  text-decoration: none;
  font-weight: 650;
  white-space: nowrap;
}
.account-link:hover { background: #154f59; }
.account-entry { max-width: 660px; padding-block: 40px; }
.account-roles { display: grid; gap: 10px; margin-top: 24px; }
.account-roles a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 650;
  text-decoration: none;
}
.account-roles a:hover { background: #edf6f7; }
@media (max-width: 600px) {
  .top { gap: 8px; }
  .top .brand { gap: 7px; }
  .top .brand img { width: 40px; height: 40px; }
  .account-link { font-size: 13px; padding-inline: 9px; }
}