.skeleton-sidebar.svelte-b2l3r{width:var(--sidebar-expanded-width,260px);background:color-mix(in oklch, var(--theme-surface-background,var(--surface-background,var(--color-background))) 70%, transparent);-webkit-backdrop-filter:blur(12px);border-right:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));flex-direction:column;flex-shrink:0;height:100%;display:flex;overflow:hidden}.skeleton-sidebar-collapsed.svelte-b2l3r{width:var(--sidebar-collapsed-width,80px);align-items:center}.skeleton-sidebar-tablet-rail.svelte-b2l3r{width:var(--sidebar-tablet-width,64px)}@keyframes svelte-b2l3r-skeleton-pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes svelte-b2l3r-fade-slide-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}@keyframes svelte-b2l3r-fade-in{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.skeleton-sidebar.svelte-b2l3r [class*=skeleton-]:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .nav-icon:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .nav-text:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .course-icon:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .course-text:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .section-label:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-avatar:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-name:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-email:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-menu-btn:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .collapsed-nav-icon:where(.svelte-b2l3r){background:var(--skeleton-bone-bg,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));animation:svelte-b2l3r-skeleton-pulse var(--skeleton-animation-duration,1.5s) var(--skeleton-animation-easing,ease-in-out) infinite;border-radius:var(--radius-md)}.collapsed-header.svelte-b2l3r{padding:var(--space-4);justify-content:center;display:flex}.collapsed-new-chat.svelte-b2l3r{padding:var(--space-2) var(--space-3);justify-content:center;display:flex}.skeleton-new-chat-icon.svelte-b2l3r{border-radius:var(--radius-lg);width:44px;height:44px;background:linear-gradient(135deg, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 70%, transparent) 0%, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 50%, transparent) 50%, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 70%, transparent) 100%)!important;background-size:200% 100%!important}.collapsed-nav.svelte-b2l3r{align-items:center;gap:var(--space-2);padding:var(--space-3) 0;flex-direction:column;display:flex}.collapsed-nav-icon.svelte-b2l3r{border-radius:var(--radius-md);opacity:0;width:36px;height:36px;animation:svelte-b2l3r-fade-in .3s ease-out forwards, svelte-b2l3r-skeleton-pulse var(--skeleton-animation-duration,1.5s) var(--skeleton-animation-easing,ease-in-out) infinite;animation-delay:var(--delay,0s)}.collapsed-footer.svelte-b2l3r{padding:var(--space-4);border-top:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));background:linear-gradient(to top, var(--skeleton-bone-bg,color-mix(in oklch, var(--theme-text-primary,currentColor) 5%, transparent)), transparent);justify-content:center;display:flex}.skeleton-user-avatar.svelte-b2l3r{border-radius:var(--avatar-border-radius,var(--shape-avatar,var(--radius-full)));width:40px;height:40px;background:linear-gradient(135deg, color-mix(in oklch, var(--color-primary-500,var(--color-primary-500)) 40%, transparent) 0%, color-mix(in oklch, var(--color-accent-500) 30%, transparent) 50%, color-mix(in oklch, var(--color-primary-500,var(--color-primary-500)) 40%, transparent) 100%)!important;background-size:200% 100%!important}.sidebar-header.svelte-b2l3r{padding:var(--space-4);border-bottom:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));justify-content:space-between;align-items:center;display:flex}.logo-area.svelte-b2l3r{align-items:center;gap:var(--space-3);display:flex}.skeleton-logo.svelte-b2l3r{border-radius:var(--radius-lg);width:36px;height:36px}.skeleton-brand.svelte-b2l3r{border-radius:var(--radius-sm);width:90px;height:22px}.skeleton-collapse-btn.svelte-b2l3r{border-radius:var(--radius-md);opacity:.7;width:32px;height:32px}.new-chat-area.svelte-b2l3r{padding:var(--space-3) var(--space-4)}.skeleton-new-chat-btn.svelte-b2l3r{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);display:flex;background:linear-gradient(90deg, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 50%, transparent) 0%, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 35%, transparent) 50%, color-mix(in oklch, var(--color-accent,var(--theme-accent)) 50%, transparent) 100%)!important;background-size:200% 100%!important}.skeleton-new-chat-btn.svelte-b2l3r .btn-icon:where(.svelte-b2l3r){border-radius:var(--radius-sm);background:var(--skeleton-bone-bg-strong,color-mix(in oklch, var(--theme-text-primary,currentColor) 15%, transparent));width:20px;height:20px;animation:none}.skeleton-new-chat-btn.svelte-b2l3r .btn-text:where(.svelte-b2l3r){border-radius:var(--radius-sm);background:var(--skeleton-bone-bg-strong,color-mix(in oklch, var(--theme-text-primary,currentColor) 15%, transparent));flex:1;height:16px;animation:none}.nav-section.svelte-b2l3r{padding:var(--space-3) var(--space-4)}.section-label.svelte-b2l3r{width:80px;height:10px;margin-bottom:var(--space-3);opacity:.6;border-radius:var(--radius-sm)}.nav-item.svelte-b2l3r{align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);margin-bottom:var(--space-1);border-radius:var(--radius-md);opacity:0;animation:.3s ease-out forwards svelte-b2l3r-fade-slide-in;animation-delay:var(--delay,0s);display:flex}.nav-icon.svelte-b2l3r{border-radius:var(--radius-sm);flex-shrink:0;width:22px;height:22px}.nav-text.svelte-b2l3r{border-radius:var(--radius-sm);flex:1;height:14px}.courses-section.svelte-b2l3r{padding:var(--space-3) var(--space-4);border-top:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent))}.course-item.svelte-b2l3r{align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);margin-bottom:var(--space-1);border-radius:var(--radius-md);opacity:0;animation:.3s ease-out forwards svelte-b2l3r-fade-slide-in;animation-delay:var(--delay,0s);display:flex}.course-icon.svelte-b2l3r{border-radius:var(--radius-md);flex-shrink:0;width:26px;height:26px}.course-text.svelte-b2l3r{border-radius:var(--radius-sm);flex:1;height:14px}.sidebar-spacer.svelte-b2l3r{min-height:var(--space-4);flex:1}.user-profile.svelte-b2l3r{align-items:center;gap:var(--space-3);padding:var(--space-4);border-top:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));background:linear-gradient(to top, var(--skeleton-bone-bg,color-mix(in oklch, var(--theme-text-primary,currentColor) 5%, transparent)), transparent);display:flex}.profile-avatar.svelte-b2l3r{border-radius:var(--avatar-border-radius,var(--shape-avatar,var(--radius-full)));flex-shrink:0;width:40px;height:40px;background:linear-gradient(135deg, color-mix(in oklch, var(--color-primary-500,var(--color-primary-500)) 40%, transparent) 0%, color-mix(in oklch, var(--color-accent-500) 30%, transparent) 50%, color-mix(in oklch, var(--color-primary-500,var(--color-primary-500)) 40%, transparent) 100%)!important;background-size:200% 100%!important}.profile-info.svelte-b2l3r{gap:var(--space-1);flex-direction:column;flex:1;min-width:0;display:flex}.profile-name.svelte-b2l3r{border-radius:var(--radius-sm);width:100px;height:14px}.profile-email.svelte-b2l3r{border-radius:var(--radius-sm);opacity:.7;width:70px;height:11px}.profile-menu-btn.svelte-b2l3r{border-radius:var(--radius-md);flex-shrink:0;width:28px;height:28px}@media (prefers-reduced-motion:reduce){.skeleton-sidebar.svelte-b2l3r [class*=skeleton-]:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .nav-icon:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .nav-text:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .course-icon:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .course-text:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .section-label:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-avatar:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-name:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-email:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .profile-menu-btn:where(.svelte-b2l3r),.skeleton-sidebar.svelte-b2l3r .collapsed-nav-icon:where(.svelte-b2l3r){opacity:var(--skeleton-static-opacity,.6);animation:none}.skeleton-new-chat-btn.svelte-b2l3r,.skeleton-new-chat-icon.svelte-b2l3r,.skeleton-user-avatar.svelte-b2l3r,.profile-avatar.svelte-b2l3r{animation:none}.nav-item.svelte-b2l3r,.course-item.svelte-b2l3r,.collapsed-nav-icon.svelte-b2l3r{opacity:1;animation:none}}.skeleton-main.svelte-1vl0yu9{background:0 0;flex-direction:column;flex:1;height:100%;display:flex;overflow:hidden}@keyframes svelte-1vl0yu9-glow-pulse{0%,to{opacity:.4;transform:scale(1)}50%{opacity:.6;transform:scale(1.05)}}@keyframes svelte-1vl0yu9-content-fade-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.content-area.svelte-1vl0yu9{-webkit-overflow-scrolling:touch;padding-top:var(--space-2,.5rem);flex:1;overflow:hidden auto}.welcome-container.svelte-1vl0yu9{align-items:stretch;gap:clamp(var(--space-5,1.25rem), 2vw, var(--space-7,2rem));width:100%;max-width:1180px;min-height:100%;padding:clamp(var(--space-4,1rem), 2.5vw, var(--space-7,2rem)) clamp(var(--space-4,1rem), 3vw, var(--space-8,2.5rem)) clamp(var(--space-7,2rem), 4vw, 3.5rem);flex-direction:column;margin-inline:auto;animation:.5s ease-out svelte-1vl0yu9-content-fade-in;display:flex}.shell-stage.svelte-1vl0yu9{width:100%}.shell-header-grid.svelte-1vl0yu9{gap:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem));grid-template-columns:minmax(0,1.7fr) minmax(280px,.95fr);align-items:stretch;display:grid}.shell-header-panel.svelte-1vl0yu9,.shell-status-card.svelte-1vl0yu9,.cards-shell.svelte-1vl0yu9{border:1px solid var(--skeleton-border-color);background:color-mix(in oklch, var(--theme-surface-card,var(--color-surface)) 58%, transparent);-webkit-backdrop-filter:blur(18px);border-radius:clamp(20px,2vw,28px);position:relative;box-shadow:0 18px 48px oklch(0% none none/.18)}.shell-header-panel.svelte-1vl0yu9{padding:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem))}.shell-kicker.svelte-1vl0yu9,.shell-status-kicker.svelte-1vl0yu9,.cards-shell-kicker.svelte-1vl0yu9{margin:0 0 var(--space-3,.75rem);font-size:var(--text-xs,.75rem);font-weight:var(--font-semibold,600);letter-spacing:.14em;text-transform:uppercase;color:var(--text-tertiary,var(--theme-text-tertiary,var(--color-neutral-400)))}.greeting-header.svelte-1vl0yu9{align-items:center;gap:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem));flex-direction:row;width:100%;display:flex}.mascot-wrapper.svelte-1vl0yu9{border:1px solid var(--skeleton-border-color,color-mix(in oklch, var(--theme-text-primary,currentColor) 10%, transparent));background:color-mix(in oklch, var(--theme-surface-card,var(--color-surface)) 72%, transparent);border-radius:clamp(18px,2vw,24px);flex-shrink:0;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.mascot-image.svelte-1vl0yu9{object-fit:contain;z-index:2;clip-path:inset(0 0 4%);width:clamp(128px,14vw,196px);height:clamp(128px,14vw,196px);position:relative}.mascot-glow.svelte-1vl0yu9{border-radius:var(--radius-full,50%);background:linear-gradient(135deg, var(--color-accent,var(--theme-accent)), var(--color-primary,var(--theme-primary)), var(--color-secondary,var(--theme-secondary)));filter:blur(24px);opacity:.35;z-index:1;width:230px;height:230px;animation:3s ease-in-out infinite svelte-1vl0yu9-glow-pulse;position:absolute}.greeting-content.svelte-1vl0yu9{align-items:flex-start;gap:var(--space-2,.5rem);text-align:left;flex-direction:column;flex:1;min-width:0;display:flex}.greeting-title.svelte-1vl0yu9{font-size:clamp(1.9rem,1.2rem + 2vw,2.75rem);font-weight:var(--font-bold);line-height:var(--leading-tight);background:linear-gradient(135deg, var(--text-primary), var(--color-primary,var(--theme-primary)));-webkit-text-fill-color:transparent;background-size:200% 200%;background-clip:text;margin:0;animation:6s ease-in-out infinite svelte-1vl0yu9-gradient-shift}.greeting-subtitle.svelte-1vl0yu9{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--text-secondary,var(--theme-text-secondary,var(--color-neutral-500)));max-width:44ch;margin:0}.greeting-date.svelte-1vl0yu9{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-tertiary,var(--theme-text-tertiary,var(--color-neutral-400)))}.shell-status-card.svelte-1vl0yu9{padding:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem));flex-direction:column;justify-content:center;min-height:100%;display:flex}.shell-status-copy.svelte-1vl0yu9,.cards-shell-copy.svelte-1vl0yu9{font-size:var(--text-sm,.875rem);line-height:var(--leading-relaxed);color:var(--text-secondary,var(--theme-text-secondary,var(--color-neutral-500)));max-width:36ch;margin:0}.shell-status-bones.svelte-1vl0yu9{gap:var(--space-3,.75rem);margin-top:var(--space-5,1.25rem);display:grid}.shell-status-line.svelte-1vl0yu9{height:.75rem}.shell-status-line--short.svelte-1vl0yu9{width:42%}.shell-status-line--medium.svelte-1vl0yu9{width:66%}.shell-status-line--long.svelte-1vl0yu9{width:84%}@keyframes svelte-1vl0yu9-gradient-shift{0%,to{background-position:0%}50%{background-position:100%}}.cards-shell.svelte-1vl0yu9{gap:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem));padding:clamp(var(--space-4,1rem), 2vw, var(--space-6,1.5rem));flex-direction:column;display:flex}.cards-shell-header.svelte-1vl0yu9{gap:var(--space-2,.5rem);flex-direction:column;max-width:42rem;display:flex}.cards-shell-title.svelte-1vl0yu9{font-size:clamp(1.15rem,.95rem + 1vw,1.5rem);line-height:1.2;font-weight:var(--font-semibold,600);color:var(--text-primary);margin:0}.cards-section.svelte-1vl0yu9{width:100%}@media (width<=960px){.shell-header-grid.svelte-1vl0yu9{grid-template-columns:1fr}}@media (width<=768px){.welcome-container.svelte-1vl0yu9{padding-inline:var(--space-4,1rem)}.shell-header-panel.svelte-1vl0yu9,.shell-status-card.svelte-1vl0yu9,.cards-shell.svelte-1vl0yu9{border-radius:20px}.greeting-header.svelte-1vl0yu9{align-items:flex-start}}@media (width<=560px){.greeting-header.svelte-1vl0yu9{flex-direction:column}.mascot-wrapper.svelte-1vl0yu9{align-self:flex-start}}@media (width<=480px){.greeting-subtitle.svelte-1vl0yu9{font-size:var(--text-sm)}.greeting-date.svelte-1vl0yu9{font-size:var(--text-xs)}}@media (prefers-reduced-motion:reduce){.welcome-container.svelte-1vl0yu9,.mascot-glow.svelte-1vl0yu9{animation:none}.greeting-title.svelte-1vl0yu9{background:var(--text-primary);background-clip:text;animation:none}}.app-shell-skeleton.svelte-1hpuw2e{background:0 0;width:100vw;height:100dvh;position:relative;overflow:hidden}.shell-layout.svelte-1hpuw2e{width:100%;height:100%;display:flex}.sidebar-wrapper.svelte-1hpuw2e{pointer-events:none;transition:width var(--sidebar-expand-duration,.3s) var(--sidebar-expand-easing,ease-out);flex-shrink:0}@media (width>=768px) and (width<=1023.98px){.sidebar-wrapper.svelte-1hpuw2e{width:var(--sidebar-tablet-width,64px)}}@media (width>=1024px){.sidebar-wrapper.svelte-1hpuw2e{width:var(--sidebar-expanded-width,260px)}}@media (width<=767.98px){.sidebar-wrapper.svelte-1hpuw2e{width:0}}.main-content.svelte-1hpuw2e{flex-direction:column;flex:1;height:100%;min-height:0;display:flex;position:relative;overflow:hidden}@media (width<=767.98px){.main-content.svelte-1hpuw2e{padding-bottom:calc(var(--bottom-nav-height,56px) + env(safe-area-inset-bottom,0px))}}.bottom-nav-skeleton.svelte-1hpuw2e{height:var(--bottom-nav-height,56px);z-index:1050;background:color-mix(in oklch, var(--theme-surface-background,var(--surface-background,var(--color-surface,#1f2937))) 85%, transparent);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--skeleton-border-color,color-mix(in srgb, var(--theme-text-primary,currentColor) 10%, transparent));padding-bottom:env(safe-area-inset-bottom,0px);grid-template-columns:1fr auto 1fr;display:grid;position:fixed;bottom:0;left:0;right:0}.nav-skel-group.svelte-1hpuw2e{display:flex}.nav-skel-tab.svelte-1hpuw2e{justify-content:center;align-items:center;gap:var(--space-1);flex-direction:column;flex:1;display:flex}.skel-icon.svelte-1hpuw2e{border-radius:var(--radius-sm);background:var(--skeleton-bone-bg,color-mix(in srgb, var(--theme-text-primary,currentColor) 8%, transparent));width:24px;height:24px;animation:1.5s ease-in-out infinite svelte-1hpuw2e-nav-skel-pulse}.skel-label.svelte-1hpuw2e{border-radius:var(--radius-sm,4px);background:var(--skeleton-bone-bg,color-mix(in srgb, var(--theme-text-primary,currentColor) 6%, transparent));width:28px;height:8px;animation:1.5s ease-in-out .15s infinite svelte-1hpuw2e-nav-skel-pulse}.nav-skel-center.svelte-1hpuw2e{flex-direction:column;justify-content:flex-end;align-items:center;min-width:72px;padding:0 0 7px;display:flex;position:relative}.skel-fab.svelte-1hpuw2e{border-radius:var(--radius-full,50%);background:color-mix(in oklch, var(--color-primary,var(--theme-primary,#2d5b3e)) 60%, transparent);border:3px solid var(--theme-surface-background,var(--surface-background,var(--color-surface,#1f2937)));width:56px;height:56px;box-shadow:0 -2px 8px var(--skeleton-bone-bg,color-mix(in srgb, var(--theme-text-primary,currentColor) 6%, transparent));animation:1.5s ease-in-out infinite svelte-1hpuw2e-nav-skel-pulse;position:absolute;top:-18px;left:50%;transform:translate(-50%)}@keyframes svelte-1hpuw2e-nav-skel-pulse{0%,to{opacity:.5}50%{opacity:1}}@media (prefers-reduced-motion:reduce){.skel-icon.svelte-1hpuw2e,.skel-label.svelte-1hpuw2e,.skel-fab.svelte-1hpuw2e{opacity:.7;animation:none}}