.page-section-header{margin-bottom:calc(var(--space-3) + var(--space-2));flex-direction:column;gap:0;display:flex}.page-section-header--surface{padding:calc(var(--space-3) + var(--space-1)) var(--space-4);background:var(--page-section-surface-bg);border:1px solid var(--page-section-border);border-radius:var(--page-section-radius);box-shadow:var(--page-section-shadow-a), var(--page-section-shadow-b)}.page-section-header--sticky{z-index:var(--z-sticky);position:sticky;top:0}.page-section-header--sticky-high{z-index:var(--z-sticky-elevated)}.page-section-header__row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:1rem 1.25rem;display:flex}.page-section-header__nav-main{align-items:flex-start;gap:var(--space-2);width:100%;display:flex}.page-section-header__back{border-radius:var(--radius-sm);border:2px solid var(--page-section-back-border);width:2.5rem;height:2.5rem;color:var(--page-section-back-fg,var(--page-section-accent));cursor:pointer;transition:background var(--duration-normal) var(--ease-standard), transform var(--duration-normal) var(--ease-standard);background:0 0;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:flex}.page-section-header__back:hover{background:var(--page-section-back-hover-bg)}@media (hover:none){.page-section-header__back:hover{background:0 0}}.page-section-header__nav-body{gap:var(--space-2);flex-direction:column;flex:1;min-width:0;display:flex}.page-section-header__nav-body--with-actions{flex-flow:wrap;justify-content:space-between;align-items:flex-start}.page-section-header__nav-body .page-section-header__text,.page-section-header__text{flex:1;min-width:min(100%,240px)}.page-section-title{font-size:var(--type-h1);font-weight:var(--font-weight-extrabold);color:var(--page-section-title-color);letter-spacing:var(--tracking-tightish);line-height:var(--leading-tight);margin:0}.page-section-title--inline{align-items:center;gap:.65rem;display:flex}.page-section-header__title-icon{color:var(--page-section-accent);flex-shrink:0}.page-section-subtitle{margin:var(--space-1) 0 0;font-size:var(--type-body-sm);line-height:var(--leading-normal);color:var(--page-section-subtitle-color);max-width:36rem;font-weight:var(--font-weight-medium)}.page-section-header__actions{flex-wrap:wrap;flex-shrink:0;align-items:center;gap:.5rem;display:flex}.page-section-header__below{width:100%;margin-top:var(--space-3)}.page-section-header__below--ruled{padding-top:var(--space-3);border-top:1px solid #2896561a}.student-app-root .page-section-header__below--ruled{border-top-color:#fdae1e26}.page-section-header__meta-row{flex-wrap:wrap;align-items:center;gap:1rem 1.5rem;display:flex}.page-section-header__meta-item{font-size:var(--type-body-sm);color:var(--page-section-subtitle-color);align-items:center;gap:.5rem;display:inline-flex}.page-section-header__meta-item svg{color:var(--page-section-accent);flex-shrink:0}.page-section-header__cta-strip{border-radius:calc(var(--page-section-radius) - 2px);border:2px solid var(--page-section-cta-strip-border);background:var(--page-section-cta-strip-bg);flex-direction:column;justify-content:space-between;align-items:stretch;gap:1rem;padding:1rem 1.25rem;display:flex;box-shadow:0 1px 3px #101f240f}@media (min-width:640px){.page-section-header__cta-strip{flex-direction:row;align-items:center;padding:1.25rem 1.5rem}}.page-section-header__cta-strip h3{font-size:var(--type-body-lg);color:var(--page-section-title-color);margin:0 0 .25rem;font-weight:600;line-height:1.3}.page-section-header__cta-strip p{font-size:var(--type-body-sm);color:var(--page-section-subtitle-color);margin:0;line-height:1.5}.page-section-header__cta-strip>*{min-width:0}.page-section-header__cta-strip>div{flex:auto}.page-section-header__cta-strip>button,.page-section-header__cta-strip>a{white-space:nowrap;flex-shrink:0}.page-section-header--surface .google-calendar-container{flex-shrink:0}@media (max-width:1024px){.page-section-header__row{flex-direction:column;align-items:stretch}.page-section-header--surface .google-calendar-container{width:100%}.page-section-header--surface .google-calendar-btn{width:100%;min-width:0}.page-section-header__nav-body--with-actions{flex-direction:column;align-items:stretch}}@media (max-width:768px){.page-section-header__row{flex-direction:column;align-items:flex-start;gap:10px}.page-section-title{font-size:1.8rem}}@media (max-width:480px){.page-section-title{font-size:1.5rem}}