.page-hero {
  color: white;
  background:
    radial-gradient(circle at 85% 5%, rgba(242,199,92,.2), transparent 27%),
    linear-gradient(135deg, var(--green-950), #194d45);
}
.page-hero-inner { padding-block: 68px 74px; }
.breadcrumbs { display: flex; gap: 9px; margin-bottom: 28px; color: #a9c5be; font-size: .8rem; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs span { color: var(--yellow); }
.page-hero h1 { max-width: 850px; margin-bottom: 20px; font-size: clamp(3rem, 7vw, 5.7rem); }
.page-hero-lead { max-width: 720px; margin: 0; color: #d4e5e0; font-size: 1.08rem; }
.content-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 64px; padding-block: 75px 110px; }
.side-nav { position: sticky; top: 110px; align-self: start; display: grid; gap: 7px; }
.side-nav strong { margin-bottom: 9px; color: var(--coral); font-size: .72rem; letter-spacing: .13em; text-transform: uppercase; }
.side-nav a { padding: 8px 12px; border-left: 2px solid var(--line); color: var(--muted); font-size: .86rem; text-decoration: none; }
.side-nav a:hover, .side-nav a:focus-visible { border-color: var(--coral); color: var(--ink); }
.content-main section { scroll-margin-top: 110px; margin-bottom: 74px; }
.content-main section:last-child { margin-bottom: 0; }
.content-main h2 { margin-bottom: 15px; font-size: clamp(2.1rem, 4vw, 3.5rem); }
.section-intro { max-width: 720px; margin: 0 0 30px; color: var(--muted); }
.topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.topic-card { padding: 23px 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.topic-card h3 { margin-bottom: 8px; font-family: Georgia, serif; font-size: 1.28rem; }
.topic-card h3 a { text-decoration-color: var(--yellow); text-decoration-thickness: 3px; text-underline-offset: 4px; }
.topic-card h3 a:hover { color: var(--green-700); }
.topic-card p { margin: 0; color: var(--muted); font-size: .88rem; }
.topic-card ul { margin: 14px 0 0; padding-left: 19px; color: var(--muted); font-size: .86rem; }
.topic-card li + li { margin-top: 5px; }
.topic-label { display: inline-block; margin-bottom: 14px; color: var(--green-700); font-size: .67rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.level-catalog { display: grid; gap: 13px; }
.level-row { display: grid; grid-template-columns: 80px 1fr auto; align-items: center; gap: 24px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.level-badge { display: grid; width: 58px; height: 58px; place-items: center; border-radius: 50% 50% 50% 14px; color: white; background: var(--green-700); font-family: Georgia, serif; font-size: 1.3rem; font-weight: 700; }
.level-row:nth-child(2) .level-badge { color: var(--green-950); background: var(--yellow); }
.level-row:nth-child(3) .level-badge { background: var(--coral); }
.level-row:nth-child(4) .level-badge { background: var(--blue); }
.level-row h3 { margin: 0 0 4px; font-family: Georgia, serif; font-size: 1.27rem; }
.level-row p { margin: 0; color: var(--muted); font-size: .86rem; }
.level-row .level-topic-links { display: flex; flex-wrap: wrap; gap: 6px 13px; margin-top: 10px; }
.level-topic-links a { color: var(--green-700); font-weight: 750; text-decoration-color: var(--yellow); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.search-page-layout { grid-template-columns: minmax(0, 820px); }
.content-search { max-width: none; border: 1px solid var(--line); box-shadow: 0 9px 28px rgba(24, 54, 48, .1); }
.search-results { margin-top: 36px; }
.search-result-list { display: grid; gap: 12px; }
.search-result-card { padding: 22px 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.search-result-card > span { color: var(--coral); font-size: .7rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.search-result-card h3 { margin: 6px 0 8px; font-family: Georgia, serif; font-size: 1.3rem; }
.search-result-card h3 a { text-decoration-color: var(--yellow); text-decoration-thickness: 3px; text-underline-offset: 4px; }
.search-result-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.level-count { color: var(--green-700); font-size: .77rem; font-weight: 800; white-space: nowrap; }
.notice { padding: 25px 27px; border-left: 4px solid var(--yellow); background: var(--green-50); }
.notice strong { display: block; margin-bottom: 4px; }
.notice p { margin: 0; color: var(--muted); font-size: .9rem; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 15px 17px 15px 45px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); }
.check-list li::before { content: "✓"; position: absolute; left: 17px; color: var(--coral); font-weight: 900; }
.status-tag { display: inline-flex; align-items: center; gap: 7px; margin-top: 16px; color: var(--muted); font-size: .76rem; }
.status-tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--yellow); }
@media (max-width: 820px) {
  .content-layout { grid-template-columns: 1fr; gap: 38px; }
  .side-nav { position: static; grid-template-columns: repeat(2, 1fr); }
  .side-nav strong { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .topic-grid, .check-list { grid-template-columns: 1fr; }
  .level-row { grid-template-columns: 62px 1fr; gap: 15px; }
  .level-count { grid-column: 2; }
}