.al-page { max-width: 900px; padding: 48px 20px; }
.al-card { background: #fff; color: #172033; border: 1px solid #d9e1ed; border-radius: 16px; padding: 24px; margin: 20px 0; }
.al-card h2,.al-card h3 { margin: 0 0 12px; }
.al-card p { margin: 12px 0; }
.al-note { color: #526078; font-size: .9rem; }
.al-question { border: 0; padding: 16px 0; margin: 0; min-width: 0; }
.al-question legend { font-weight: 650; white-space: pre-wrap; }
.al-options { display: grid; gap: 8px; margin-top: 12px; }
.al-options button,.al-card button { padding: 12px 16px; border: 1px solid #94a3b8; border-radius: 8px; background: #f8fafc; color: #172033; cursor: pointer; text-align: left; white-space: pre-wrap; font: inherit; }
.al-options button:disabled { cursor: default; opacity: 1; }
.al-options button[aria-pressed=true] { border: 2px solid #4338ca; background: #eef2ff; }
.al-card button:focus-visible,.al-card a:focus-visible,.al-card textarea:focus-visible { outline: 3px solid #4338ca; outline-offset: 3px; }
.al-feedback { padding: 12px; background: #eef2ff; border-radius: 8px; }
.al-code { display: block; width: 100%; min-height: 210px; margin: 12px 0; padding: 14px; box-sizing: border-box; font: 14px/1.6 monospace; tab-size: 4; border-radius: 8px; border: 1px solid #94a3b8; background: #0f172a; color: #f1f5f9; }
.al-output { white-space: pre-wrap; overflow-wrap: anywhere; padding: 12px; background: #f1f5f9; }
.al-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.al-filters { display: flex; flex-wrap: wrap; gap: 16px; margin: 20px 0; }
.al-filters label,.al-card > label { display: grid; gap: 6px; font-weight: 600; }
.al-page select { max-width: 100%; padding: 10px; border: 1px solid #94a3b8; border-radius: 8px; background: #fff; color: #172033; font: inherit; }
.al-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.al-tabs a { padding: 10px 18px; border: 1px solid #cbd5e1; border-radius: 999px; text-decoration: none; }
.al-tabs a[aria-current] { background: #4338ca; color: white; border-color: #4338ca; }
.al-topic-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(min(100%,260px),1fr)); gap: 16px; align-items: start; }
.al-topic-grid .al-card { margin: 0; }
.al-reading-summary { padding: 20px; margin: 20px 0; border: 1px solid #d9e1ed; border-radius: 16px; background: #f4f1ff; }
.al-reading-summary:empty { display: none; }
.prose .al-reading-summary .btn-primary { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px; color: #fff; text-decoration: none; }
.al-reading-summary a:focus-visible, .al-reading-filters select:focus-visible { outline: 3px solid #4338ca; outline-offset: 3px; }
.al-reading-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.al-reading-stats > div { display: grid; align-content: start; gap: 4px; }
.al-reading-stats strong { font-size: 1.8rem; line-height: 1.2; color: #5b21b6; }
.al-reading-stats span { font-size: .85rem; color: #526078; }
.al-reading-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 20px 0; }
.al-reading-filters[hidden] { display: none; }
.al-reading-filters select { max-width: 100%; padding: 10px; border: 1px solid #94a3b8; border-radius: 8px; background: #fff; color: #172033; font: inherit; }
.al-reading-filters [role="status"] { font-size: .85rem; color: #526078; }
.al-reading-badge { display: inline-block; padding: 4px 10px; margin-bottom: 12px; border-radius: 999px; background: #f1f5f9; color: #475569; font-size: .75rem; font-weight: 700; }
.al-reading-badge[data-reading-state="started"] { background: #fff3d6; color: #854d0e; }
.al-reading-badge[data-reading-state="complete"] { background: #dcfce7; color: #166534; }
.al-reading-progress { display: block; width: 100%; height: 8px; accent-color: #6d28d9; }
.al-topic-grid .al-card { position: relative; min-width: 0; overflow-wrap: anywhere; }
.al-topic-link::after { content: ""; position: absolute; inset: 0; z-index: 1; border-radius: 16px; }
.al-topic-grid .al-topic-status-grid,
.al-topic-grid .al-actions a:not(.al-topic-link) { position: relative; z-index: 2; }
.al-topic-grid .al-card:has(.al-topic-link:hover),
.al-topic-grid .al-card:has(.al-topic-link:focus-visible) { outline: 3px solid #7e5dab; outline-offset: 3px; }
.al-topic-status-grid { display: grid; gap: 0; margin: 12px 0; }
.al-topic-status-grid .al-topic-status { display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 10px; min-height: 44px; padding: 6px 0; border-bottom: 1px solid #edf0f5; color: #526078; font-size: .72rem; line-height: 1.4; text-decoration: none; min-width: 0; }
.al-topic-status-grid .al-topic-status:last-child { border-bottom: 0; }
.al-topic-status .al-topic-status-label { color: #6d28d9; font-weight: 700; font-size: .8rem; }
.al-topic-status-value { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 8px; }
.al-topic-status strong { color: #172033; font-size: .78rem; font-weight: 600; }
.al-topic-status[data-state="complete"] strong { color: #166534; }
.al-topic-status[data-state="started"] strong { color: #854d0e; }
.al-topic-status-grid .al-topic-status[data-state="unavailable"] { min-height: 30px; }
.al-topic-status[data-state="unavailable"] .al-topic-status-label, .al-topic-status[data-state="unavailable"] strong { color: #64748b; }
.al-topic-status-grid a.al-topic-status:hover { background: #f4f1ff; }
.prose .al-topic-grid .al-card h3 { margin: 0 0 12px; padding: 0; border: 0; font-size: 1rem; line-height: 1.4; }
.al-topic-grid .al-card .al-note { font-size: .8rem; margin: 10px 0; }
@media(max-width:400px) { .al-reading-stats { grid-template-columns: 1fr; gap: 12px; } .al-reading-stats > div { display: flex; align-items: center; gap: 12px; } }
.al-card [data-exercise] { margin-top: 20px; }
.al-card .prose { overflow-wrap: anywhere; }
.al-card .prose pre { overflow-x: auto; }
.al-card select { width: 100%; }
#al-error { color: #b91c1c; }
.al-inline { display: contents; }
.al-inline > :not(.al-tabs) { margin-left: 28px; margin-right: 28px; }
.al-inline > .al-filters { padding-top: 20px; }
.al-inline .al-filters label { min-width: 0; max-width: 100%; }
.al-inline .al-filters label[hidden] { display: none; }
.al-sidebar-heading { margin: 16px 16px 4px; font-size: 1rem; color: var(--purple); }
.al-sidebar-hint { margin: 0 16px 16px; color: var(--text-3); font-size: .75rem; }
.al-sidebar-topics { list-style: none; padding: 0 12px 24px; margin: 0; }
.al-sidebar-topics li { margin: 0 0 8px; }
.al-sidebar-topics a { display: flex; align-items: flex-start; gap: 10px; padding: 12px 10px; border: 1px solid transparent; border-radius: 10px; color: var(--text-2); text-decoration: none; }
.al-sidebar-topics a:hover, .al-sidebar-topics a[aria-current] { background: var(--purple-bg); border-color: var(--purple-muted); color: var(--purple); }
.al-sidebar-number { flex-shrink: 0; font-size: .8rem; padding-top: 2px; }
.al-sidebar-topic-body { display: grid; gap: 6px; flex: 1; min-width: 0; }
.al-sidebar-topic-body strong { font-size: .85rem; line-height: 1.4; overflow-wrap: anywhere; }
.al-sidebar-count { font-size: .7rem; color: var(--text-3); }
.al-sidebar-topic-body progress { width: 100%; height: 6px; accent-color: #6d28d9; }
.al-sidebar-topics a[data-complete="true"] progress { accent-color: #16a34a; }
.al-inline .al-tabs {
  position: sticky;
  top: calc(var(--nav-h) + var(--py-nav-height, 64px));
  z-index: 290;
  margin: 0;
  padding: 12px 28px;
  background: var(--bg, #f8fafc);
  border-bottom: 1px solid #d9e1ed;
}
.py-fundamentals:has(.al-inline) .idocs-header-dark {
  scroll-margin-top: calc(var(--nav-h) + var(--py-nav-height, 64px));
}
.py-fundamentals:has(.al-inline) .py-fundamentals-lesson,
.py-fundamentals:has(.al-inline) .py-fundamentals-lesson [id] {
  scroll-margin-top: calc(var(--py-nav-height, 64px) + var(--py-tabs-height, 76px) + 16px);
}
.al-inline select { min-width: 0; width: 100%; max-width: 100%; padding: 10px; border: 1px solid #94a3b8; border-radius: 8px; background: #fff; font: inherit; }
.py-fundamentals[data-activity-view]:not([data-activity-view="read"]) .py-fundamentals-lesson,
.py-fundamentals[data-activity-view]:not([data-activity-view="read"]) .py-page-toc { display: none !important; }
.py-fundamentals[data-activity-view]:not([data-activity-view="read"]) .py-learning-body { grid-template-columns: minmax(0,1fr); }
@media(max-width:600px) {
  .al-inline > :not(.al-tabs) { margin-left: 0; margin-right: 0; }
  .al-inline .al-filters label { width: 100%; }
  .al-inline .al-tabs { padding: 10px 0; gap: 6px; }
  .al-inline .al-tabs a { padding: 10px 12px; }
}
@media(max-width:600px) { .al-card { padding: 16px; } .al-page { padding: 24px 14px; } }