*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:#f5f5f5;color:#333;line-height:1.6}#root{min-height:100vh}.container{max-width:600px;margin:0 auto;padding:2rem 1rem}h1{font-size:2rem;margin-bottom:.5rem;color:#1a1a1a;border-bottom:2px solid #2563eb;padding-bottom:.5rem;display:inline-block}h2{font-size:1.25rem;margin-bottom:1rem;color:#1a1a1a}.btn{display:inline-block;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;color:#fff;background-color:#2563eb;border:none;border-radius:6px;cursor:pointer;text-decoration:none;transition:background-color .2s;min-height:44px}.btn:hover{background-color:#1d4ed8}.btn:disabled{background-color:#93c5fd;cursor:not-allowed}.btn.secondary{background-color:#6b7280}.btn.secondary:hover{background-color:#4b5563}.btn.subtle{background:#fff;border:1px solid #93c5fd;color:#1d4ed8}.btn.subtle:hover{background:#eff6ff;border-color:#60a5fa}.btn.subtle:disabled{background:#f3f4f6;border-color:#e5e7eb;color:#6b7280}.btn.danger{background-color:#b91c1c}.btn.danger:hover{background-color:#991b1b}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 1px 3px #0000001a;margin-bottom:1rem}.personal-word-form{display:grid;gap:1rem}.personal-word-form label{display:grid;font-weight:600;gap:.35rem}.personal-word-form input{border:1px solid #9ca3af;border-radius:6px;font:inherit;padding:.7rem}.personal-word-form textarea{border:1px solid #9ca3af;border-radius:6px;font:inherit;min-height:8rem;padding:.7rem;resize:vertical}.personal-word-notice{color:#166534;font-weight:600;margin:1rem 0}.feedback-form{display:grid;gap:1rem}.feedback-form label{display:grid;font-weight:600;gap:.35rem}.feedback-form textarea{border:1px solid #9ca3af;border-radius:6px;font:inherit;min-height:10rem;padding:.7rem;resize:vertical}.moderation-section{margin-bottom:2rem}.moderation-feedback{display:grid;gap:.8rem}.moderation-feedback.resolved{opacity:.72}.personal-word-list li{display:grid;gap:.2rem}.personal-word-list span{color:#4b5563}.personal-word-actions{display:flex;align-items:center;gap:.9rem;margin-top:.45rem}.personal-word-delete{color:#b91c1c}.lesson-list{list-style:none}.lesson-list li{margin-bottom:.75rem}.module-section{margin-bottom:2rem}.module-list{display:grid;gap:1rem}.module-card,.lesson-card{background:#fff;border:1px solid #e5e7eb;color:#111827;display:block;text-align:left;width:100%}.module-card{border-radius:8px;cursor:pointer;padding:1.25rem 1.5rem}.module-card:hover,.lesson-card.btn:hover:not(:disabled){background:#eff6ff;border-color:#93c5fd;color:#111827;box-shadow:0 1px 3px #2563eb1f}.module-card-title,.module-card-description,.module-card-lock{display:block}.module-card-title{font-size:1.15rem;font-weight:700}.module-card-description{color:#4b5563;margin:.35rem 0 .8rem}.module-card-lock{color:#6b7280;font-size:.8rem;margin-top:.7rem}.module-description{color:#4b5563;margin:-.5rem 0 1rem}.module-progress{color:#166534;display:block;font-size:.875rem;font-weight:600;margin:-.5rem 0 1rem}.module-progress.module-locked{color:#6b7280}.module-practice-button{background:#fff;border:1px solid #bfdbfe;border-radius:9999px;color:#1d4ed8;cursor:pointer;font:inherit;font-size:.875rem;font-weight:600;margin:-.25rem 0 1rem;padding:.4rem .75rem;min-height:40px}.module-practice-button:hover{background:#eff6ff;border-color:#93c5fd}.lesson-list-title,.lesson-list-progress{display:block}.lesson-list-progress{color:#6b7280;font-size:.875rem;font-weight:500;margin-top:.25rem}.progress-bar{background:#e5e7eb;border-radius:9999px;display:block;height:.45rem;margin-top:.5rem;overflow:hidden;width:100%}.progress-bar-fill{background:#16a34a;border-radius:inherit;display:block;height:100%;transition:width .2s ease}.lesson-progress-summary{margin-bottom:1rem}.lesson-progress-counts{color:#4b5563;display:flex;flex-wrap:wrap;font-size:.875rem;gap:.75rem}.lesson-word{display:flex;align-items:center;justify-content:space-between;gap:1rem}.lesson-word-main{min-width:0}.word-progress{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.mastery-badge{border-radius:9999px;font-size:.75rem;font-weight:700;padding:.2rem .55rem}.mastery-badge.new{background:#e5e7eb;color:#374151}.mastery-badge.practicing{background:#dbeafe;color:#1e40af}.mastery-badge.mastered{background:#dcfce7;color:#166534}.reset-mastery{font-size:.75rem;padding:.4rem .6rem}.lesson-list a{color:#2563eb;text-decoration:none;font-weight:500}.lesson-list a:hover{text-decoration:underline}.lesson-subtitle{font-size:.875rem;color:#6b7280;margin-bottom:1rem}.lesson-description{font-size:1rem;color:#374151;margin-bottom:1rem;line-height:1.6}.lesson-reading-section{margin:1.5rem 0}.lesson-reading-section h2{margin-bottom:.5rem}.lesson-reading-section p,.lesson-reading-section ul{color:#374151;margin-bottom:.75rem}.lesson-reading-section ul{padding-left:1.25rem}.lesson-reading-section li{margin-bottom:.35rem}.word-display{font-size:2rem;font-weight:700;color:#1a1a1a;margin:1rem 0;text-align:center}.translations{font-size:1.125rem;color:#6b7280;font-style:italic;margin-bottom:1.5rem;text-align:center}.score-badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.875rem;font-weight:600;margin-bottom:1rem}.score-0{background:#fee2e2;color:#991b1b}.score-1{background:#fef3c7;color:#92400e}.score-2{background:#dbeafe;color:#1e40af}.score-3{background:#dcfce7;color:#166534}.review-actions{display:flex;gap:.5rem;margin-top:1rem}.review-actions .btn{flex:1}.review-actions .btn.correct{background-color:#16a34a}.review-actions .btn.correct:hover{background-color:#15803d}.review-actions .btn.wrong{background-color:#dc2626}.review-actions .btn.wrong:hover{background-color:#b91c1c}.review-feedback{margin-top:1rem;text-align:center}.review-feedback p{font-weight:600;margin-bottom:1rem}.feedback-correct{color:#166534}.feedback-wrong{color:#b91c1c}.quiz-instruction{color:#4b5563;margin-bottom:1rem;text-align:center}.quiz-hint{color:#4b5563;font-size:.875rem;margin-top:.85rem;text-align:center}.typed-answer-form{display:flex;gap:.75rem}.typed-answer-input{border:1px solid #9ca3af;border-radius:6px;flex:1;font-size:1rem;min-width:0;padding:.75rem}.typed-answer-input:focus{border-color:#2563eb;outline:2px solid #bfdbfe}.correct-answer{color:#374151}.multiple-choice-options{display:grid;gap:.75rem}.choice-option{background:#fff;border:1px solid #d1d5db;border-radius:6px;color:#1f2937;cursor:pointer;font-size:1rem;padding:.75rem 1rem;text-align:left}.choice-option:hover:not(:disabled){background:#f3f4f6;border-color:#2563eb}.choice-option:disabled{cursor:default;opacity:1}.choice-option.choice-correct{background:#dcfce7;border-color:#16a34a;color:#166534}.choice-option.choice-wrong:not(.choice-correct){background:#fee2e2;border-color:#dc2626;color:#991b1b}.choice-option.selected-choice{background:#dbeafe;border-color:#2563eb}.lesson-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.25rem}.checkpoint-mistakes{margin:1.5rem 0;text-align:left}.checkpoint-mistake{border-left:3px solid #dc2626;display:grid;gap:.2rem;margin-top:.75rem;padding-left:.75rem}.checkpoint-mistake span{color:#4b5563}.checkpoint-unlocked-message{color:#166534;font-weight:700;margin:1rem 0}.auth-page{max-width:440px;padding-top:4rem}.auth-form{display:grid;gap:1rem}.auth-form label{display:grid;font-weight:600;gap:.35rem}.auth-form input{border:1px solid #9ca3af;border-radius:6px;font-size:1rem;padding:.7rem}.auth-help{color:#6b7280;font-size:.875rem}.auth-error{color:#b91c1c;font-weight:600}.auth-switch{background:none;border:0;color:#2563eb;cursor:pointer;margin-top:1rem;padding:0}.account-bar{align-items:center;background:#fff;border-bottom:1px solid #e5e7eb;color:#4b5563;display:flex;font-size:.875rem;justify-content:flex-end;gap:.75rem;padding:.5rem 1rem}.account-bar button{background:none;border:0;color:#2563eb;cursor:pointer;font:inherit}.account-bar a{color:#2563eb;text-decoration:none}.account-bar a:hover{text-decoration:underline}.practice-progress{align-items:center;display:flex;gap:.6rem;margin-bottom:1rem}.practice-progress-track{background:#dbeafe;border-radius:9999px;flex:1;height:.55rem;overflow:hidden}.practice-progress-fill{background:#2563eb;border-radius:inherit;display:block;height:100%;transition:width .2s ease}.nav-links{align-items:center;display:flex;flex-wrap:wrap;gap:.25rem 1rem;margin-bottom:2rem}.nav-links a{color:#2563eb;display:inline-flex;align-items:center;min-height:40px;text-decoration:none;font-weight:500}.nav-links a:hover{text-decoration:underline}.nav-links .text-button{min-height:40px}.text-button,.report-button{background:none;border:0;color:#2563eb;cursor:pointer;font:inherit;padding:.25rem 0}.text-button{font-weight:500}.text-button:hover,.report-button:hover{text-decoration:underline}.reading-notice{background:#dcfce7;border-radius:6px;color:#166534;font-weight:600;margin:1rem 0;padding:.75rem 1rem}.reading-error{background:#fee2e2;border-radius:6px;color:#991b1b;font-weight:600;margin:1rem 0;padding:.75rem 1rem}.reading-list{display:grid;gap:1rem}.reading-list-item,.reading-heading{align-items:center;display:flex;gap:1rem;justify-content:space-between}.reading-list-item h2,.reading-heading h2{margin-bottom:.15rem}.reading-list-item p,.reading-heading p,.reading-list-item small{color:#6b7280}.passage-source{border-radius:9999px;display:inline-block;font-size:.75rem;font-weight:700;margin:.4rem 0;padding:.15rem .5rem}.passage-source.authored{background:#e0e7ff;color:#3730a3}.passage-source.generated{background:#fef3c7;color:#92400e}.reading-next{text-align:center}.reading-next p{color:#4b5563;margin-bottom:1rem}.reading-heading>span{color:#6b7280;font-size:.875rem;white-space:nowrap}.reading-passage section{margin:1.5rem 0}.reading-passage h3{color:#1f2937;font-size:1rem;margin-bottom:.65rem}.passage-sentences{display:grid;gap:.8rem}.passage-sentence p{font-size:1.1rem}.report-button{color:#6b7280;flex-shrink:0;font-size:.8rem}.report-passage{display:block;margin:1.25rem 0}.passage-translation{color:#4b5563;font-style:italic}.passage-glossary{background:#fffbeb;border-radius:6px;padding:1rem}.passage-glossary ul{list-style:none}.passage-glossary li+li{margin-top:.35rem}.moderation-meta{color:#6b7280;font-size:.875rem;margin:-.7rem 0 1rem}.moderation-finnish{border-left:3px solid #d1d5db;color:#374151;margin-bottom:1rem;padding-left:.75rem}.moderation-reports{color:#374151;margin:1rem 0;padding-left:1.25rem}.moderation-reports li+li{margin-top:.5rem}@media (max-width: 480px){.container{padding:1.25rem .75rem 2rem}h1{font-size:1.65rem}h2{font-size:1.15rem}.card{padding:1rem}.account-bar{flex-wrap:wrap;gap:.15rem .75rem;justify-content:center;padding:.5rem .75rem}.account-bar span{flex-basis:100%;text-align:center}.nav-links{gap:.15rem .75rem;margin-bottom:1.25rem}.module-card{padding:1rem}.lesson-word{align-items:flex-start;flex-direction:column;gap:.65rem}.lesson-word .translations{font-size:1rem;margin:.15rem 0 0;text-align:left}.word-progress,.personal-word-actions{flex-wrap:wrap}.lesson-actions .btn,.reading-list-item .btn,.reading-heading .btn,.typed-answer-form .btn{width:100%}.typed-answer-form{flex-direction:column}.lesson-actions{align-items:stretch;flex-direction:column;gap:1rem}.typed-answer-input,.auth-form input,.personal-word-form input,.personal-word-form textarea,.feedback-form textarea{font-size:16px}.reading-list-item,.reading-heading{align-items:flex-start;flex-direction:column}.reading-heading>span{white-space:normal}.word-display{font-size:1.7rem;overflow-wrap:anywhere}.translations{font-size:1rem;overflow-wrap:anywhere}.choice-option{min-height:48px}.review-actions{flex-direction:column}.review-actions .btn{width:100%}.empty-state{padding:2rem .5rem}}.empty-state{text-align:center;padding:3rem 1rem;color:#6b7280}.next-review-time{font-size:.875rem;margin-bottom:1rem}.session-summary{background:#eff6ff;border-radius:8px;color:#1e3a8a;margin:1.5rem auto;max-width:28rem;padding:1rem}.session-summary h2{color:#1e3a8a;font-size:1rem;margin-bottom:.75rem}.session-summary-grid{display:flex;flex-wrap:wrap;gap:.5rem 1rem;justify-content:center}.session-summary-grid span{font-size:.875rem}