.icon.svelte-5qm2zj{flex-shrink:0}.lecture-player-container.svelte-8duikb{width:100%;max-width:880px;margin:0 auto;font-family:inherit}.video-wrapper.svelte-8duikb{aspect-ratio:16/9;border-radius:var(--radius-lg);width:100%;box-shadow:var(--shadow-md);background-color:#000;position:relative;overflow:hidden}.lecture-video.svelte-8duikb{object-fit:contain;width:100%;height:100%}.loading-overlay.svelte-8duikb,.error-overlay.svelte-8duikb{color:#fff;z-index:10;background-color:#000000bf;flex-direction:column;justify-content:center;align-items:center;gap:1rem;display:flex;position:absolute;inset:0}.error-overlay.svelte-8duikb{--focus-ring-color:var(--on-primary-color)}.spinner.svelte-8duikb{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:2.5rem;height:2.5rem;animation:1s linear infinite svelte-8duikb-spin}@keyframes svelte-8duikb-spin{to{transform:rotate(360deg)}}.error-text.svelte-8duikb{color:#f87171;text-align:center;margin:0;padding:0 1rem;font-size:.95rem}.warning-toast.svelte-8duikb{color:#fff;z-index:20;pointer-events:none;background-color:#dc2626e6;border-radius:4px;padding:.4rem .8rem;font-size:.85rem;font-weight:500;animation:.2s ease-in svelte-8duikb-fadeIn;position:absolute;top:1rem;left:50%;transform:translate(-50%)}@keyframes svelte-8duikb-fadeIn{0%{opacity:0;transform:translate(-50%,-5px)}to{opacity:1;transform:translate(-50%)}}.captions-toggle.svelte-8duikb{min-height:44px;padding:.5rem .875rem;font-size:.875rem}.captions-toggle[aria-pressed=true].svelte-8duikb{background:var(--primary-tint-color);color:var(--primary-strong-color)}.captions-error.svelte-8duikb,.save-pending.svelte-8duikb,.save-error.svelte-8duikb{border-radius:var(--radius-md);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1rem;margin-top:.75rem;padding:.75rem 1rem;font-size:.875rem;display:flex}.captions-error.svelte-8duikb,.save-pending.svelte-8duikb{border-left:4px solid var(--notice-color);background:var(--notice-tint-color);color:var(--text-color)}.save-error.svelte-8duikb{border:1px solid var(--error-color);background:var(--error-tint-color);color:var(--error-color)}.captions-error.svelte-8duikb p:where(.svelte-8duikb),.save-pending.svelte-8duikb p:where(.svelte-8duikb),.save-error.svelte-8duikb p:where(.svelte-8duikb){margin:0}@media (prefers-reduced-motion:reduce){.spinner.svelte-8duikb,.warning-toast.svelte-8duikb{animation:none}}.time-display.svelte-8duikb{color:var(--muted-color);font-variant-numeric:tabular-nums;justify-content:space-between;align-items:center;gap:.5rem;margin-top:.75rem;font-size:.875rem;display:flex}.not-disclosed-notice.svelte-8duikb{text-align:center;background:var(--surface-2-color);border:1.5px dashed var(--border-strong-color);border-radius:var(--radius-lg);color:var(--muted-color);padding:2rem}.lesson-flow.svelte-g976s{--rail-width:240px;--stage-pad:1.5rem;width:100%;max-width:720px;color:var(--text-color);grid-template-columns:minmax(0,1fr);grid-template-areas:"header""rail""stage";margin:0 auto;font-size:1rem;line-height:1.6;display:grid}.lesson-flow-header.svelte-g976s{flex-direction:column;grid-area:header;align-items:flex-start;gap:.25rem;margin-bottom:1.25rem;display:flex}.lesson-name.svelte-g976s{width:100%;min-width:0}.lesson-label.svelte-g976s{color:var(--muted-color);font-size:.875rem;font-weight:600;display:block}.lesson-title.svelte-g976s{overflow-wrap:anywhere;margin:0;font-size:1.25rem;line-height:1.35}.progress-rail.svelte-g976s{flex-wrap:wrap;grid-area:rail;align-items:center;gap:.5rem .75rem;margin-bottom:1rem;display:flex}.step-count.svelte-g976s{color:var(--muted-color);flex:none;margin:0;font-size:.875rem;font-weight:600}.step-meter.svelte-g976s{background:var(--surface-2-color);border-radius:var(--radius-pill);flex:1;min-width:4rem;height:6px;overflow:hidden}.step-meter.svelte-g976s span:where(.svelte-g976s){background:var(--primary-color);border-radius:var(--radius-pill);height:100%;display:block}.steps.svelte-g976s{flex-wrap:wrap;flex-basis:100%;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.step.svelte-g976s{min-width:0;position:relative}.step-button.svelte-g976s,.step-row.svelte-g976s{border-radius:var(--radius-pill);min-height:44px;color:var(--text-color);font:inherit;text-align:left;white-space:normal;background:0 0;border:1px solid #0000;align-items:center;gap:.5rem;padding:.375rem .875rem .375rem .375rem;text-decoration:none;display:flex}.step-button.svelte-g976s{cursor:pointer}.step-button.svelte-g976s:hover:not(:disabled){background:var(--primary-soft-color)}.step-button.svelte-g976s:disabled{cursor:not-allowed}.step-mark.svelte-g976s{border-radius:50%;flex:none;justify-content:center;align-items:center;width:24px;height:24px;font-size:.75rem;font-weight:700;display:inline-flex}.step-label.svelte-g976s{overflow-wrap:anywhere;min-width:0}.step-go.svelte-g976s{display:none}.step[data-status=done].svelte-g976s .step-button:where(.svelte-g976s){background:var(--surface-color);border-color:var(--border-color)}.step[data-status=done].svelte-g976s .step-mark:where(.svelte-g976s){background:var(--done-color);color:var(--on-primary-color)}.step[data-status=current].svelte-g976s :is(.step-button:where(.svelte-g976s),.step-row:where(.svelte-g976s)){background:var(--primary-color);color:var(--on-primary-color);font-weight:700}.step[data-status=current].svelte-g976s .step-mark:where(.svelte-g976s){background:var(--surface-color);color:var(--primary-color)}.step[data-status=upcoming].svelte-g976s .step-row:where(.svelte-g976s){border:1px dashed var(--border-strong-color);color:var(--muted-color)}.step[data-status=upcoming].svelte-g976s .step-mark:where(.svelte-g976s){background:var(--surface-color);border:1.5px solid var(--border-strong-color);color:var(--muted-color)}.step[data-shown=true].svelte-g976s .step-button:where(.svelte-g976s){background:var(--primary-soft-color);border-color:var(--primary-color);color:var(--text-color);font-weight:700}.lesson-stage.svelte-g976s{grid-area:stage;min-width:0}@media (width>=1024px){.lesson-flow.svelte-g976s{max-width:calc(var(--rail-width) + 2rem + 880px);grid-template-areas:"header header""rail stage";grid-template-columns:var(--rail-width) minmax(0, 880px);column-gap:2rem}.lesson-flow-header.svelte-g976s{grid-template-columns:var(--rail-width) minmax(0, 1fr);align-items:end;column-gap:2rem;display:grid}.lesson-flow-header.svelte-g976s .back-link:where(.svelte-g976s){grid-column:1;justify-self:start}.lesson-name.svelte-g976s{grid-column:2}.lesson-title.svelte-g976s{font-size:1.5rem}.progress-rail.svelte-g976s{background:var(--surface-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);align-self:start;margin-bottom:0;padding:1rem}.steps.svelte-g976s{flex-flow:column;gap:.25rem;margin-top:.5rem}.step-button.svelte-g976s,.step-row.svelte-g976s{border-radius:var(--radius-md);border-width:1.5px;align-items:flex-start;gap:.75rem;width:100%;padding:.5rem .75rem}.step-mark.svelte-g976s{width:28px;height:28px;font-size:.875rem}.step-label.svelte-g976s{padding-top:.125rem}.step.svelte-g976s:not(:last-child):after{content:"";background:var(--border-color);width:2px;position:absolute;top:calc(.5rem + 28px);bottom:-.75rem;left:calc(.75rem + 14.5px)}.step[data-status=done].svelte-g976s:not(:last-child):after{background:var(--done-color)}.step-go.svelte-g976s{color:var(--primary-color);align-self:center;margin-left:auto;display:inline-flex}.step-button.svelte-g976s:disabled .step-go:where(.svelte-g976s){visibility:hidden}.step[data-status=done].svelte-g976s .step-button:where(.svelte-g976s){background:0 0;border-color:#0000}.step[data-status=done].svelte-g976s .step-button:where(.svelte-g976s):hover:not(:disabled){background:var(--primary-soft-color)}.step[data-status=current].svelte-g976s :is(.step-button:where(.svelte-g976s),.step-row:where(.svelte-g976s)){background:var(--primary-tint-color);color:var(--primary-strong-color);box-shadow:inset 4px 0 0 var(--primary-color)}.step[data-status=current].svelte-g976s .step-mark:where(.svelte-g976s){background:var(--primary-color);color:var(--on-primary-color);box-shadow:0 0 0 4px var(--primary-tint-color)}.step[data-status=upcoming].svelte-g976s .step-row:where(.svelte-g976s){border:1.5px solid #0000}.step[data-shown=true].svelte-g976s .step-button:where(.svelte-g976s){background:var(--primary-soft-color);border-color:var(--primary-color)}}.review-notice.svelte-g976s{border-left:3px solid var(--primary-color);border-radius:var(--radius-md);background:var(--primary-soft-color);color:var(--text-color);margin:0 0 1rem;padding:.75rem 1rem}.mic-denied-banner.svelte-g976s,.gate-unavailable-notice.svelte-g976s,.reconcile-reason-notice.svelte-g976s{border-left:4px solid var(--notice-color);border-radius:var(--radius-md);background:var(--notice-tint-color);color:var(--notice-color);padding:.75rem 1rem}.mic-denied-banner.svelte-g976s{margin-bottom:1rem}.stage-section.svelte-g976s{background:var(--surface-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--stage-pad)}.stage-heading.svelte-g976s{margin:0 0 .25rem;font-size:1.375rem;line-height:1.35}.stage-purpose.svelte-g976s{color:var(--muted-color);margin:0 0 1rem}.field-task-box.svelte-g976s{border-left:4px solid var(--accent-color);border-radius:var(--radius-md);background:var(--accent-tint-color);max-width:40em;color:var(--text-color);align-items:flex-start;gap:.75rem;margin:1rem 0;padding:1rem 1.25rem;display:flex}.field-task-icon.svelte-g976s{color:var(--accent-color);padding-top:.25rem;display:inline-flex}.field-task-text.svelte-g976s{white-space:pre-wrap;margin:0;font-size:1.125rem}.field-task-note.svelte-g976s,.lecture-note.svelte-g976s{color:var(--muted-color)}.field-task-note.is-done.svelte-g976s{border-radius:var(--radius-md);background:var(--done-tint-color);color:var(--text-color);align-items:center;gap:.5rem;padding:.75rem 1rem;font-weight:600;display:flex}.field-task-note.is-done.svelte-g976s svg{color:var(--done-color)}.send-error-notice.svelte-g976s{border-radius:var(--radius-md);background:var(--error-tint-color);color:var(--error-color);margin:0 0 1rem;padding:.75rem 1rem}.not-tried-yet.svelte-g976s{border-radius:var(--radius-md);background:var(--surface-2-color);margin:0 0 1rem;padding:.75rem 1rem}.not-tried-yet-note.svelte-g976s{color:var(--muted-color);margin:0 0 .5rem;font-size:.875rem}.checking-notice.svelte-g976s{color:var(--muted-color);align-items:center;gap:.5rem;margin:0;display:flex}.checking-notice.svelte-g976s:before{content:"";border:2px solid var(--primary-tint-color);border-top-color:var(--primary-color);border-radius:50%;flex:none;width:14px;height:14px;animation:.9s linear infinite svelte-g976s-lc-spin}@keyframes svelte-g976s-lc-spin{to{transform:rotate(360deg)}}.gate-unavailable-notice.svelte-g976s{margin:0}.reconcile-reason-notice.svelte-g976s{margin:0 0 1rem}.reconcile-comparison.svelte-g976s{grid-template-columns:minmax(0,1fr);gap:.75rem;margin-bottom:1.25rem;display:grid}@media (width>=768px){.reconcile-comparison.svelte-g976s{grid-template-columns:1fr 1fr}}.comparison-card.svelte-g976s{border-radius:var(--radius-md);background:var(--surface-2-color);color:var(--text-color);padding:1rem 1.25rem}.comparison-card.is-reference.svelte-g976s{border-left:3px solid var(--primary-color);background:var(--primary-soft-color)}.card-label.svelte-g976s{color:var(--muted-color);margin-bottom:.25rem;font-size:.875rem;font-weight:700;display:block}.is-reference.svelte-g976s .card-label:where(.svelte-g976s){color:var(--primary-strong-color)}.card-text.svelte-g976s{white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.lecture-section.svelte-g976s{margin:.5rem 0 1rem}.answer-mode-choice.svelte-g976s{grid-template-columns:1fr;gap:1rem;margin-bottom:1rem;display:grid}@media (width>=480px){.answer-mode-choice.svelte-g976s{grid-template-columns:1fr 1fr}}.mode-button.svelte-g976s{border-radius:var(--radius-lg);border:1.5px solid var(--border-color);background:var(--surface-color);min-height:120px;color:var(--text-color);font:inherit;cursor:pointer;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:.5rem;padding:1.25rem 1rem;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex}.mode-button.svelte-g976s:hover:not(:disabled){border-color:var(--primary-color);box-shadow:var(--shadow-md)}@media (prefers-reduced-motion:no-preference){.mode-button.svelte-g976s:hover:not(:disabled){transform:translateY(-1px)}}.mode-button.svelte-g976s:disabled{opacity:.55;cursor:not-allowed}.mode-icon.svelte-g976s{background:var(--primary-tint-color);width:56px;height:56px;color:var(--primary-strong-color);border-radius:50%;justify-content:center;align-items:center;display:inline-flex}.mode-label.svelte-g976s{font-size:1.0625rem;font-weight:700}.mode-sub.svelte-g976s{color:var(--muted-color);font-size:.875rem}.mode-switch.svelte-g976s{margin-top:.75rem}.practice-link-row.svelte-g976s,.reset-row.svelte-g976s{margin:.75rem 0 0}.reset-row.svelte-g976s .btn-ghost:where(.svelte-g976s){color:var(--muted-color)}.text-input-form.svelte-g976s{flex-direction:column;gap:.75rem;display:flex}.stage-textarea.svelte-g976s{border-radius:var(--radius-md);border:1.5px solid var(--border-strong-color);background:var(--surface-color);width:100%;min-height:7.5rem;color:var(--text-color);font:inherit;resize:vertical;padding:.875rem 1rem}.primary-actions.svelte-g976s{justify-content:flex-end;margin-top:1rem;display:flex}@media (width<=767px){.lesson-flow.svelte-g976s{--stage-pad:1.25rem}.stage-heading.svelte-g976s{font-size:1.25rem}.primary-actions.svelte-g976s{margin:1rem calc(-1 * var(--stage-pad)) calc(-1 * var(--stage-pad));padding:.75rem var(--stage-pad) calc(.75rem + env(safe-area-inset-bottom));background:var(--surface-color);border-top:1px solid var(--border-color);border-radius:0 0 var(--radius-lg) var(--radius-lg);position:sticky;bottom:0}.primary-actions.svelte-g976s .btn:where(.svelte-g976s){width:100%}}.visually-hidden.svelte-g976s{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}.lesson-intro.svelte-1msnmv6{width:100%;max-width:720px;color:var(--text-color);margin:0 auto;font-size:1rem;line-height:1.6}.back-link.svelte-1msnmv6{margin-bottom:.75rem}.intro-card.svelte-1msnmv6{background:var(--surface-color);color:var(--text-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:2rem}.lesson-label.svelte-1msnmv6{color:var(--muted-color);margin:0;font-size:.875rem;font-weight:600}.lesson-title.svelte-1msnmv6{overflow-wrap:anywhere;margin:.25rem 0 .5rem;font-size:1.75rem;line-height:1.35}.duration.svelte-1msnmv6{color:var(--muted-color);align-items:center;gap:.375rem;margin:0 0 1.25rem;display:flex}.objective.svelte-1msnmv6{border-radius:var(--radius-md);background:var(--primary-soft-color);color:var(--text-color);margin:0 0 1.5rem;padding:1rem 1.25rem}.objective-label.svelte-1msnmv6{color:var(--primary-strong-color);font-weight:700}.step-flow.svelte-1msnmv6{counter-reset:step;flex-wrap:wrap;gap:.5rem;margin:0 0 2rem;padding:0;list-style:none;display:flex}.step-flow.svelte-1msnmv6 li:where(.svelte-1msnmv6){counter-increment:step;border-radius:var(--radius-pill);background:var(--surface-2-color);color:var(--text-color);align-items:center;gap:.5rem;padding:.25rem .875rem .25rem .25rem;font-size:.875rem;font-weight:600;display:inline-flex}.step-flow.svelte-1msnmv6 li:where(.svelte-1msnmv6):before{content:counter(step);background:var(--primary-tint-color);width:24px;height:24px;color:var(--primary-strong-color);border-radius:50%;justify-content:center;align-items:center;font-size:.75rem;font-weight:700;display:inline-flex}.primary-actions.svelte-1msnmv6{justify-content:flex-start;display:flex}@media (width<=40rem){.intro-card.svelte-1msnmv6{padding:1.25rem}.lesson-title.svelte-1msnmv6{font-size:1.5rem}.step-flow.svelte-1msnmv6{flex-direction:column;align-items:flex-start}.primary-actions.svelte-1msnmv6 .btn:where(.svelte-1msnmv6){width:100%}}