@layer components{.os-theme-toggle[data-astro-cid-lfoluaxz]{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--os-border-subtle);background:var(--os-bg-secondary);color:var(--os-text-secondary);cursor:pointer;position:relative;overflow:hidden;transition:all .2s ease}.os-theme-toggle[data-astro-cid-lfoluaxz]:hover{background:var(--os-bg-tertiary);color:var(--os-text-primary)}.os-theme-toggle__sun[data-astro-cid-lfoluaxz],.os-theme-toggle__moon[data-astro-cid-lfoluaxz]{position:absolute;transition:all .3s cubic-bezier(.4,0,.2,1)}html[data-theme=light] .os-theme-toggle__sun[data-astro-cid-lfoluaxz]{transform:translateY(0) rotate(0);opacity:1}html[data-theme=light] .os-theme-toggle__moon[data-astro-cid-lfoluaxz]{transform:translateY(30px) rotate(90deg);opacity:0}html[data-theme=dark] .os-theme-toggle__sun[data-astro-cid-lfoluaxz]{transform:translateY(-30px) rotate(-90deg);opacity:0}html[data-theme=dark] .os-theme-toggle__moon[data-astro-cid-lfoluaxz]{transform:translateY(0) rotate(0);opacity:1}}@layer layout{.app-shell[data-astro-cid-iv7lwsuo]{--app-zone-accent: var(--os-zone-progress);--app-zone-accent-soft: var(--os-zone-progress-soft);min-height:100dvh;display:grid;grid-template-columns:290px minmax(0,1fr);background:radial-gradient(circle at top left,color-mix(in srgb,var(--app-zone-accent) 16%,transparent),transparent 36%),linear-gradient(180deg,var(--os-bg-primary) 0%,var(--os-bg-secondary) 100%)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=learn]{--app-zone-accent: var(--os-zone-learn);--app-zone-accent-soft: var(--os-zone-learn-soft)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=topics]{--app-zone-accent: var(--os-zone-topics);--app-zone-accent-soft: var(--os-zone-topics-soft)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=practice]{--app-zone-accent: var(--os-zone-practice);--app-zone-accent-soft: var(--os-zone-practice-soft)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=atlas]{--app-zone-accent: var(--os-zone-atlas);--app-zone-accent-soft: var(--os-zone-atlas-soft)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=library]{--app-zone-accent: var(--os-zone-library);--app-zone-accent-soft: var(--os-zone-library-soft)}.app-shell[data-astro-cid-iv7lwsuo][data-zone=progress]{--app-zone-accent: var(--os-zone-progress);--app-zone-accent-soft: var(--os-zone-progress-soft)}.app-rail[data-astro-cid-iv7lwsuo]{position:sticky;top:0;height:100dvh;padding:var(--os-space-6);display:flex;flex-direction:column;gap:var(--os-space-6);border-right:1px solid color-mix(in srgb,var(--os-panel-edge) 75%,white);background:linear-gradient(180deg,#fcf9f4e6,#f7f1e8d6),var(--os-bg-accent-wash);backdrop-filter:blur(20px)}.app-rail__brand[data-astro-cid-iv7lwsuo]{display:flex;gap:var(--os-space-3);align-items:center;text-decoration:none;padding:var(--os-space-3);border-radius:20px;background:#ffffff6b;border:1px solid color-mix(in srgb,var(--os-panel-edge) 55%,white);box-shadow:inset 0 1px #ffffff8c}.app-rail__mark[data-astro-cid-iv7lwsuo]{width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--app-zone-accent),color-mix(in srgb,var(--app-zone-accent) 42%,var(--os-accent-primary)));color:#fff;font-weight:800;letter-spacing:.08em;box-shadow:0 16px 34px #4b340f29}.app-rail__brand[data-astro-cid-iv7lwsuo] strong[data-astro-cid-iv7lwsuo],.app-rail__link[data-astro-cid-iv7lwsuo] strong[data-astro-cid-iv7lwsuo],.app-rail__metric[data-astro-cid-iv7lwsuo] strong[data-astro-cid-iv7lwsuo],.app-rail__metric-row[data-astro-cid-iv7lwsuo] strong[data-astro-cid-iv7lwsuo]{display:block;color:var(--os-text-primary)}.app-rail__brand[data-astro-cid-iv7lwsuo] small[data-astro-cid-iv7lwsuo],.app-rail__link[data-astro-cid-iv7lwsuo] small[data-astro-cid-iv7lwsuo],.app-rail__metric[data-astro-cid-iv7lwsuo] small[data-astro-cid-iv7lwsuo],.app-rail__metric-row[data-astro-cid-iv7lwsuo] small[data-astro-cid-iv7lwsuo]{color:var(--os-text-muted)}.app-rail__nav[data-astro-cid-iv7lwsuo]{display:grid;gap:var(--os-space-2)}.app-rail__link[data-astro-cid-iv7lwsuo]{display:grid;grid-template-columns:40px 1fr;gap:var(--os-space-3);align-items:center;padding:var(--os-space-3);border-radius:var(--os-radius-lg);color:inherit;text-decoration:none;transition:transform var(--os-duration-fast),background var(--os-duration-fast),box-shadow var(--os-duration-fast)}.app-rail__link[data-astro-cid-iv7lwsuo]:hover,.app-rail__link--active[data-astro-cid-iv7lwsuo]{background:color-mix(in srgb,var(--app-zone-accent) 10%,white);box-shadow:var(--os-shadow-sm),inset 0 1px #ffffff8c;transform:translateY(-1px);text-decoration:none}.app-rail__icon[data-astro-cid-iv7lwsuo]{width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--app-zone-accent) 12%,white);color:var(--app-zone-accent);font-weight:700;font-family:var(--os-font-code)}.app-rail__status[data-astro-cid-iv7lwsuo]{margin-top:auto;display:grid;gap:var(--os-space-4);border-radius:24px;background:linear-gradient(180deg,#ffffffd1,#fcf7eec7),var(--os-bg-accent-wash);border:1px solid color-mix(in srgb,var(--os-panel-edge) 55%,white);box-shadow:var(--os-shadow-soft),inset 0 1px #fff9}.app-rail__eyebrow[data-astro-cid-iv7lwsuo]{font-size:var(--os-font-size-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--app-zone-accent);font-weight:700}.app-rail__profile[data-astro-cid-iv7lwsuo]{display:grid;gap:.15rem;padding:var(--os-space-3);border-radius:18px;background:color-mix(in srgb,var(--app-zone-accent) 8%,white);border:1px solid color-mix(in srgb,var(--app-zone-accent) 16%,white)}.app-rail__metric-row[data-astro-cid-iv7lwsuo]{display:grid;grid-template-columns:1fr 1fr;gap:var(--os-space-3)}.app-rail__focus[data-astro-cid-iv7lwsuo]{margin:0;color:var(--os-text-secondary);font-size:var(--os-font-size-sm);line-height:1.65}.app-shell__main[data-astro-cid-iv7lwsuo]{min-width:0;padding:var(--os-space-6) var(--os-space-6) calc(var(--os-space-16) + 72px)}.app-topbar[data-astro-cid-iv7lwsuo]{display:flex;justify-content:space-between;gap:var(--os-space-4);align-items:flex-start;margin-bottom:var(--os-space-8);padding:var(--os-space-5);border-radius:30px;background:linear-gradient(180deg,#ffffffc2,#faf5edb8),var(--os-bg-accent-wash);border:1px solid color-mix(in srgb,var(--os-panel-edge) 55%,white);border-top:3px solid color-mix(in srgb,var(--app-zone-accent) 48%,white);box-shadow:var(--os-shadow-soft),inset 0 1px #ffffff80}.app-topbar__summary[data-astro-cid-iv7lwsuo]{display:flex;flex-wrap:wrap;gap:var(--os-space-3);align-items:center;margin-bottom:var(--os-space-3)}.app-topbar__helper[data-astro-cid-iv7lwsuo]{color:var(--os-text-secondary);font-size:var(--os-font-size-sm);font-weight:600}.app-breadcrumbs[data-astro-cid-iv7lwsuo]{display:flex;flex-wrap:wrap;gap:var(--os-space-2);margin-bottom:var(--os-space-2);font-size:var(--os-font-size-xs);color:var(--os-text-muted)}.app-breadcrumbs[data-astro-cid-iv7lwsuo] a[data-astro-cid-iv7lwsuo]:after,.app-breadcrumbs[data-astro-cid-iv7lwsuo] span[data-astro-cid-iv7lwsuo]:after{content:"/";margin-left:var(--os-space-2);color:var(--os-text-muted)}.app-breadcrumbs[data-astro-cid-iv7lwsuo] span[data-astro-cid-iv7lwsuo]:last-child:after,.app-breadcrumbs[data-astro-cid-iv7lwsuo] a[data-astro-cid-iv7lwsuo]:last-child:after{display:none}.app-topbar__title[data-astro-cid-iv7lwsuo]{font-size:clamp(2rem,2vw + 1.3rem,2.9rem);margin-bottom:var(--os-space-2)}.app-topbar__desc[data-astro-cid-iv7lwsuo]{max-width:64ch}.app-topbar__actions[data-astro-cid-iv7lwsuo]{display:flex;gap:var(--os-space-3);align-items:center;flex-wrap:wrap;justify-content:flex-end}.app-content[data-astro-cid-iv7lwsuo]{display:grid;gap:var(--os-space-6)}.command-launch[data-astro-cid-iv7lwsuo]{display:inline-flex;align-items:center;gap:var(--os-space-3);padding:.9rem 1rem;border-radius:999px;border:1px solid color-mix(in srgb,var(--app-zone-accent) 16%,white);background:#ffffffd6;box-shadow:var(--os-shadow-sm),inset 0 1px #fff9;color:var(--os-text-secondary);cursor:pointer}.command-launch[data-astro-cid-iv7lwsuo] kbd[data-astro-cid-iv7lwsuo]{padding:.15rem .45rem;background:var(--os-bg-secondary);border-radius:999px;border:1px solid var(--os-border-subtle)}.command-overlay[data-astro-cid-iv7lwsuo]{position:fixed;inset:0;z-index:var(--os-z-modal);display:grid;place-items:start center;padding:12vh var(--os-space-4) var(--os-space-4)}.command-overlay__backdrop[data-astro-cid-iv7lwsuo]{position:absolute;inset:0;border:0;background:#130e083d;cursor:pointer}.command-panel[data-astro-cid-iv7lwsuo]{position:relative;width:min(760px,100%);background:#fffbf6f5;border:1px solid color-mix(in srgb,var(--os-border-subtle) 85%,white);border-radius:26px;box-shadow:0 24px 80px #1f15072e;overflow:hidden}.command-panel__header[data-astro-cid-iv7lwsuo]{padding:var(--os-space-4);border-bottom:1px solid var(--os-border-subtle);display:grid;gap:var(--os-space-2)}.command-panel__meta[data-astro-cid-iv7lwsuo]{display:flex;justify-content:space-between;gap:var(--os-space-3);flex-wrap:wrap;color:var(--os-text-muted);font-size:var(--os-font-size-xs)}.command-panel__meta[data-astro-cid-iv7lwsuo] span[data-astro-cid-iv7lwsuo]{color:var(--os-text-secondary);font-weight:600}.command-panel__input[data-astro-cid-iv7lwsuo]{width:100%;border:0;outline:0;background:transparent;font-size:var(--os-font-size-lg)}.command-panel__results[data-astro-cid-iv7lwsuo]{display:grid;gap:1px;max-height:60vh;overflow:auto;background:color-mix(in srgb,var(--os-border-subtle) 50%,white);padding:1px}.command-item[data-astro-cid-iv7lwsuo],.command-empty[data-astro-cid-iv7lwsuo]{display:grid;grid-template-columns:40px 1fr;gap:var(--os-space-3);padding:var(--os-space-4);background:#fffffff5;text-decoration:none}.command-item[data-astro-cid-iv7lwsuo]:hover,.command-item--active[data-astro-cid-iv7lwsuo]{background:var(--os-bg-primary);text-decoration:none}.command-item__icon[data-astro-cid-iv7lwsuo]{width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--app-zone-accent) 10%,white);color:var(--app-zone-accent);font-weight:700}.command-item__body[data-astro-cid-iv7lwsuo]{display:grid;gap:.15rem}.command-empty[data-astro-cid-iv7lwsuo]{color:var(--os-text-muted);grid-template-columns:1fr}.app-mobile-nav[data-astro-cid-iv7lwsuo]{display:none}@media(max-width:1024px){.app-shell[data-astro-cid-iv7lwsuo]{grid-template-columns:1fr}.app-rail[data-astro-cid-iv7lwsuo]{display:none}.app-shell__main[data-astro-cid-iv7lwsuo]{padding:var(--os-space-4) var(--os-space-4) calc(var(--os-space-20) + 60px)}.app-topbar[data-astro-cid-iv7lwsuo]{flex-direction:column;padding:var(--os-space-4)}.app-topbar__actions[data-astro-cid-iv7lwsuo]{width:100%;justify-content:flex-start}.app-mobile-nav[data-astro-cid-iv7lwsuo]{position:fixed;left:var(--os-space-3);right:var(--os-space-3);bottom:var(--os-space-3);z-index:var(--os-z-overlay);display:grid;grid-template-columns:repeat(6,minmax(0,1fr)) auto;gap:var(--os-space-2);padding:var(--os-space-2);border-radius:20px;background:#fffbf6eb;backdrop-filter:blur(16px);border:1px solid color-mix(in srgb,var(--os-border-subtle) 70%,white);box-shadow:var(--os-shadow-lg)}.app-mobile-nav__link[data-astro-cid-iv7lwsuo]{display:grid;place-items:center;gap:.15rem;padding:.7rem .4rem;border-radius:16px;color:var(--os-text-muted);text-decoration:none}.app-mobile-nav__link--active[data-astro-cid-iv7lwsuo]{background:var(--os-bg-tertiary);color:var(--app-zone-accent)}.app-mobile-nav__actions[data-astro-cid-iv7lwsuo]{display:flex;align-items:center;justify-content:center;padding-right:.35rem}}}