.study-hub { padding-bottom: 64px; }
.study-hub-tracks { display: flex; gap: 8px; padding-block: 24px; border-bottom: 1px solid var(--corp-line); }
.study-hub-tracks a { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 18px; border: 1px solid var(--corp-line); border-radius: 8px; background: #fff; color: var(--corp-muted); font-size: 14px; font-weight: 650; }
.study-hub-tracks a[aria-current] { border-color: var(--corp-green); color: var(--corp-green); background: #eff6e9; }
.study-hub-section { margin-top: 40px; scroll-margin-top: 120px; }
.study-hub-section-heading { margin-bottom: 20px; }
.study-hub h2 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 750; }
.study-hub h3 { font-size: 18px; font-weight: 700; }
.study-hub-section-heading p:not(.corp-eyebrow) { max-width: 760px; margin-top: 12px; color: var(--corp-muted); }
.study-hub-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.study-hub-steps { list-style: none; padding: 0; }
.study-hub-step, .study-hub-resource { padding: 24px; }
.study-hub-step-number { display: block; margin-bottom: 18px; color: var(--corp-green); font-size: 14px; font-weight: 750; }
.study-hub-step p, .study-hub-resource p, .study-hub-example p { margin-top: 12px; color: var(--corp-muted); font-size: 15px; }
.study-hub-example { margin-top: 20px; padding: 28px; background: #f2f5ed; }
.study-hub-resource { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; color: var(--corp-ink); text-decoration: none; }
.study-hub-resource p { margin-top: 0; }
.study-hub-link { margin-top: auto; padding-top: 8px; color: var(--corp-green); font-size: 14px; font-weight: 700; }
.study-hub-book { display: flex; flex-direction: column; }
.study-hub-book-cover { display: flex; align-items: center; justify-content: center; height: 240px; padding: 20px; background: #f0f3ea; border-bottom: 1px solid var(--corp-line); }
.study-hub-book-cover img { display: block; height: 200px; width: 100%; object-fit: contain; }
.study-hub-book-cover > span { color: var(--corp-ink); font-size: 42px; font-weight: 750; text-align: center; }
.study-hub-book-cover small { display: block; font-size: 12px; letter-spacing: .16em; }
.study-hub-book-body { display: flex; flex-direction: column; flex: 1; gap: 12px; padding: 24px; }
.study-hub-publisher { color: var(--corp-muted); font-size: 12px; }
.study-hub-book-body .corp-price { margin-top: auto; font-size: 22px; }
.study-hub-book-body .corp-button-secondary { width: 100%; }
.study-hub-note { margin-top: 40px; }
.study-hub-note p { margin-top: 12px; max-width: 850px; }
@media (max-width: 959px) { .study-hub-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 639px) {
    .study-hub-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
    .study-hub-section { margin-top: 30px; }
    .study-hub-step, .study-hub-resource, .study-hub-example, .study-hub-book-body { padding: 20px; }
    .study-hub-tracks { gap: 6px; }
    .study-hub-tracks a { flex: 1; justify-content: center; padding-inline: 10px; }
}