*{margin:0;padding:0;box-sizing:border-box;scrollbar-width:thin;scrollbar-color:var(--border) transparent}:root{--bg-dark:#f5f7fb;--bg-card:#ffffff;--primary:#2563eb;--success:#10b981;--error:#ef4444;--text:#111827;--text-muted:#6b7280;--border:#e5e7eb;--transition:0.3s ease}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:linear-gradient(180deg,#f8fafc 0,#eef2ff 100%);color:var(--text);line-height:1.6;min-height:100vh;overflow-x:hidden;top:0!important}.container{max-width:900px;margin:0 auto;padding:20px}header{text-align:center;margin-bottom:40px;padding:20px 0}h1{font-size:2.5rem;background:linear-gradient(135deg,#3b82f6,#10b981);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:10px}.subtitle{color:var(--text-muted);font-size:1.1rem}#google_translate_element{position:absolute;top:20px;left:25px;margin:0}#google_translate_element .goog-te-gadget-simple{background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;padding:4px 10px;font-size:.85rem;cursor:pointer}#google_translate_element .goog-te-gadget-simple span{color:var(--text-color)!important}#google_translate_element .goog-te-gadget-simple .goog-te-menu-value span{color:var(--text-muted)!important}.goog-te-banner-frame,.skiptranslate>font{display:none!important}.user-section{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:15px 20px;background:var(--bg-card);border-radius:10px;border:1px solid var(--border)}.user-name{font-size:1.2rem;font-weight:600}.btn{padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:600;transition:all var(--transition);display:inline-block}.btn:focus{outline:2px solid var(--primary);outline-offset:2px}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:#1d4ed8;transform:translateY(-2px);box-shadow:0 8px 20px rgba(37,99,235,.25)}.btn-secondary{background-color:var(--bg-card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.input-field{width:100%;padding:12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-dark);color:var(--text);font-size:1rem;margin-bottom:20px}.subjects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}.subject-card{background:var(--bg-card);border:2px solid var(--border);border-radius:12px;padding:30px;text-align:center;cursor:pointer;transition:all var(--transition);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:15px}.subject-card:hover{border-color:var(--primary);transform:translateY(-5px)}.answer-modal-content,.difficulty-card,.modal-content,.question-card,.subject-card,.user-info{box-shadow:0 10px 30px rgba(0,0,0,.06)}.subject-icon{font-size:3rem}.subject-name{font-size:1.5rem;font-weight:700}.subject-progress{width:100%;display:flex;flex-direction:column;align-items:center;gap:5px;margin-top:4px}.subject-progress-bar{width:100%;height:5px;background:var(--border);border-radius:99px;overflow:hidden}.subject-progress-fill{height:100%;background:var(--primary);border-radius:99px;transition:width .4s;min-width:0}.subject-progress-label{font-size:.72rem;color:var(--text-muted);font-weight:500}#backToSubjectsBtn,.quiz-container{display:none}.quiz-container.active{display:block}.quiz-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid var(--border)}.quiz-info{color:var(--text-muted)}.progress-bar{width:100%;height:8px;background:var(--bg-card);border-radius:10px;margin-bottom:30px;overflow:hidden;border:1px solid var(--border)}.progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#10b981);transition:width .4s}.question-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:30px;margin-bottom:30px;animation:.4s fadeIn}.seo-intro{max-width:600px;margin:0 auto;padding:8px 16px 0;text-align:center}.seo-intro h2{font-size:1rem;font-weight:700;color:var(--text);line-height:1.4;margin-bottom:10px}.seo-intro p{font-size:.88rem;line-height:1.6;color:var(--text-muted);margin-bottom:14px}.seo-feature-list{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;list-style:none;padding:0;margin:0}.seo-feature-list li{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:5px 14px;font-size:.76rem;font-weight:600;color:var(--text-muted)}.seo-subject-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}.seo-subject-links a{font-size:.82rem;font-weight:600;color:var(--primary);text-decoration:none}.seo-subject-links a:hover{text-decoration:underline}@media (max-width:768px){.seo-feature-list{flex-direction:column;align-items:stretch}.seo-subject-links{gap:10px 16px}}.question-text{font-size:1.6rem;letter-spacing:-.5px;font-weight:600;margin-bottom:25px;line-height:1.6}.options{display:flex;flex-direction:column;gap:12px}.option{background:var(--bg-dark);border:2px solid var(--border);border-radius:8px;padding:15px 20px;cursor:pointer;transition:.2s;display:flex;align-items:center;gap:12px}.option:hover{border-color:var(--primary);background:#eff6ff;transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.08)}.option-letter{display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:var(--primary);border-radius:50%;font-size:.9rem;font-weight:600;flex-shrink:0}.option.correct{border-color:var(--success);background:rgba(16,185,129,.1)}.option.incorrect{border-color:var(--error);background:rgba(239,68,68,.1)}.option.selected{border-color:var(--primary);background:#eff6ff}.button-group{display:flex;gap:12px;margin-top:30px}.button-group .btn{flex:1}.answer-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);z-index:1000;justify-content:center;align-items:center;transition:opacity var(--transition)}.answer-modal.active{display:flex;animation:.4s fadeIn}.answer-modal-content{background:var(--bg-card);border-radius:12px;padding:24px;max-width:380px;width:90%;border:1px solid var(--border);text-align:center;animation:.3s scaleUp}.answer-result{width:70px;height:70px;margin:0 auto 16px;border:3px solid var(--success);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem;background:0 0}.answer-result.incorrect{border-color:var(--error)}.answer-title{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:var(--success)}.answer-title.incorrect{color:var(--error)}.answer-points-delta{font-size:.85rem;font-weight:700;margin-bottom:12px;color:var(--text-muted)}.answer-points-delta.gain{color:var(--success)}.answer-points-delta.loss{color:var(--error)}.correct-answer{background:0 0;border:1px solid var(--border);border-radius:6px;padding:10px;margin:12px 0;font-weight:500;color:var(--text);font-size:.9rem}.explanation-box{background:#eff6ff;border:1px solid #bfdbfe;border-left:4px solid var(--primary);border-radius:8px;padding:12px 14px;margin:14px 0;text-align:left}.explanation-label{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--primary);margin-bottom:6px}.explanation-text{background:0 0;color:var(--text);font-size:.92rem;line-height:1.5}.continue-btn{margin-top:16px;width:100%;padding:10px 15px;font-size:.9rem}.top-right-corner{position:absolute;top:20px;right:25px;display:flex;align-items:center;gap:10px;z-index:10;flex-wrap:wrap;justify-content:flex-end;max-width:calc(100vw - 50px)}#aiTutorSection,#capsuleSection,#learnSection,#mockTestGateSection,#mockTestSection,#performanceSection,#savedSection{padding-top:64px}.corner-btn{background:var(--bg-card);border:1px solid var(--border);border-radius:30px;padding:8px 16px;font-size:.85rem;font-weight:700;color:#059669;cursor:pointer;white-space:nowrap;transition:border-color .15s}.corner-btn:hover{border-color:currentColor}.user-info{background:var(--bg-card);border:1px solid var(--border);border-radius:30px;padding:6px 14px;display:flex;align-items:center;gap:10px;font-size:.95rem;color:var(--text-muted);cursor:pointer;transition:border-color .15s}.user-info:hover{border-color:var(--primary)}.user-info span{color:var(--primary);font-weight:600}.profile-section-hint{font-size:.85rem;color:var(--text-muted);margin:4px 0 16px}.sync-account-box{display:flex;justify-content:space-between;align-items:center;gap:14px;background:var(--bg-dark);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:18px}.sync-account-box button{flex-shrink:0;white-space:nowrap}.google-signin-btn{display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid #dadce0;border-radius:4px;padding:9px 14px;font-size:.875rem;font-weight:500;font-family:Roboto,Arial,sans-serif;color:#3c4043;cursor:pointer;transition:box-shadow .15s,background .15s}.google-signin-btn:hover{background:#f7f8f8;box-shadow:0 1px 2px rgba(0,0,0,.15)}.profile-form-group{margin-bottom:16px}.profile-form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:6px}.profile-form-group select{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-dark);color:var(--text);font-size:.95rem}.profile-save-status{font-size:.85rem;color:var(--success,#16a34a);min-height:1.2em;margin:8px 0 0}.profile-divider{border:none;border-top:1px solid var(--border);margin:24px 0}.feedback-stars{display:flex;gap:6px;margin-bottom:14px}.feedback-star{background:0 0;border:none;font-size:1.6rem;line-height:1;cursor:pointer;color:#cbd5e1;padding:0;transition:color .15s,transform .1s}.feedback-star:hover{transform:scale(1.1)}.feedback-star.active{color:#f59e0b}.user-info button{background:0 0;border:none;color:var(--text-muted);cursor:pointer;font-size:1.1rem;transition:transform .2s}.user-info button:hover{transform:rotate(20deg);color:var(--primary)}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(15,23,42,.55);backdrop-filter:blur(8px);z-index:1000;justify-content:center;align-items:center}#learnMoreModal{z-index:1100}#aiChatModal{z-index:1200}.modal.active{display:flex;animation:.4s fadeIn}.modal-content{background:var(--bg-card);border-radius:16px;padding:32px;max-width:700px;width:92%;max-height:85vh;overflow-y:auto;text-align:left;border:1px solid var(--border);animation:.3s scaleUp}.modal-title{font-size:2rem;margin-bottom:20px;color:var(--success)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:30px}.stat{background:var(--bg-dark);padding:15px;border-radius:8px;border:1px solid var(--border)}.stat-value{font-size:1.8rem;font-weight:700;color:var(--primary)}.stat-label{color:var(--text-muted);font-size:.9rem;margin-top:5px}.difficulty-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:25px}.difficulty-card{background:var(--bg-card);border:2px solid var(--border);border-radius:12px;padding:30px;text-align:center;cursor:pointer;transition:all var(--transition);font-size:1.2rem;font-weight:600;color:var(--text)}.difficulty-card:hover{transform:translateY(-5px);border-color:var(--primary)}.difficulty-card.easy{border-color:var(--success)}.difficulty-card.easy:hover{background:rgba(16,185,129,.1)}.difficulty-card.medium{border-color:#facc15}.difficulty-card.medium:hover{background:rgba(250,204,21,.1)}.difficulty-card.hard{border-color:var(--error)}.difficulty-card.hard:hover{background:rgba(239,68,68,.1)}.difficulty-desc{font-size:.85rem;color:var(--text-muted);margin-top:10px}.scoreboard{display:flex;justify-content:space-between;align-items:center;background:var(--bg-card);padding:10px 15px;border-radius:10px;border:1px solid var(--border);font-size:.95rem;color:var(--text);min-width:260px;box-shadow:0 0 10px rgba(0,0,0,.3)}.scoreboard>div{display:flex;flex-direction:column;align-items:center;min-width:70px;gap:4px}.scoreboard strong{color:var(--primary);font-size:.85rem;font-weight:700;letter-spacing:.5px}.scoreboard div>div{font-weight:700;font-size:1.05rem;color:var(--text)}@keyframes scorePulse{0%,100%{transform:scale(1);color:var(--text)}50%{transform:scale(1.3);color:var(--success)}}.score-updated{animation:.5s scorePulse}@media (max-width:640px){.scoreboard{flex-wrap:wrap;gap:10px;padding:8px;min-width:0}.scoreboard>div{flex:1 1 30%;min-width:0}.scoreboard strong{font-size:.8rem}.scoreboard div>div{font-size:.9rem}}.total-score-display{position:absolute;top:20px;left:25px;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:8px 16px;font-size:1rem;color:var(--text);display:flex;align-items:center;gap:6px;box-shadow:0 2px 6px rgba(0,0,0,.3)}.total-score-display span:first-child{font-size:1.2rem}.total-score-display strong{color:var(--primary)}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes scaleUp{from{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}@media (max-width:640px){h1{font-size:1.8rem}.subjects-grid{grid-template-columns:1fr}.question-text{font-size:1.1rem}}@media (max-width:768px){.container{padding:15px}h1{font-size:2rem}.question-card{padding:20px}.question-text{font-size:1.2rem;line-height:1.5}.quiz-header{flex-direction:column;align-items:center;align-items:stretch}.scoreboard{width:100%;justify-content:space-between}.button-group{flex-direction:column}.top-right-corner{position:static;margin-bottom:16px;justify-content:center}#google_translate_element{position:static;margin:10px 0 0;display:flex;justify-content:center}#aiTutorSection,#capsuleSection,#learnSection,#mockTestGateSection,#mockTestSection,#performanceSection,#savedSection{padding-top:0}.stats-grid{grid-template-columns:1fr}.learn-more-header,.saved-screen-header,.subjects-header{flex-direction:column;align-items:stretch;gap:10px}.learn-more-header h2,.saved-screen-header h2,.subjects-header h2{text-align:center}.subjects-header-actions{justify-content:center}.sync-account-box{flex-direction:column;align-items:stretch;text-align:center}.sync-account-box button{width:100%;justify-content:center}}.learn-topics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-bottom:28px}.class-chip{display:inline-block;font-size:.6rem;font-weight:700;padding:1px 6px;border-radius:20px;vertical-align:middle;margin-left:5px;letter-spacing:.02em}.chip-11{background:#ede9fe;color:#6d28d9}.chip-12{background:#fce7f3;color:#be185d}.class-filter{grid-column:1/-1;display:flex;gap:8px;margin-bottom:4px}.filter-btn{padding:5px 14px;border-radius:20px;border:1.5px solid var(--border);background:#fff;color:var(--text-muted);font-size:.8rem;font-weight:600;cursor:pointer;transition:.15s}.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.filter-btn:hover:not(.active){border-color:var(--primary);color:var(--primary)}.learn-nav-bar{display:flex;gap:12px;position:sticky;bottom:0;background:var(--bg);padding:12px 0 8px;margin-top:16px;z-index:10;border-top:1px solid var(--border)}.learn-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;transition:.25s;box-shadow:0 6px 20px rgba(0,0,0,.05);display:flex;flex-direction:column;cursor:pointer}.learn-card:hover{transform:translateY(-4px);border-color:var(--primary)}.learn-card-unstarted{background:#f5f6f8;border-color:#e2e5ea;box-shadow:none}.learn-card-unstarted .learn-card-icon{filter:grayscale(1);opacity:.45}.learn-card-unstarted .learn-card-title{color:#9ca3af}.learn-card-unstarted .learn-card-desc{color:#c4c9d4}.learn-card-unstarted:hover{border-color:#c4c9d4}.learn-card-top{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}.learn-card-icon{font-size:1.8rem}.learn-card-title{font-size:1.1rem;font-weight:700;color:var(--primary)}.learn-card-desc{color:var(--text-muted);font-size:.92rem;line-height:1.6;margin-bottom:16px;flex:1}.learn-card-actions{display:flex;gap:8px;margin-top:4px}.read-more-btn{flex:1;background:#eff6ff;color:var(--primary);border:none;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600}.topic-quiz-btn{flex:1;background:var(--primary);color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600}.topic-diff-overlay{position:fixed;inset:0;background:rgba(17,24,39,.38);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.topic-diff-box{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;box-shadow:0 18px 45px rgba(17,24,39,.18);padding:22px;width:min(300px,100%);text-align:center}.topic-diff-title{font-weight:700;font-size:1.1rem;margin-bottom:14px;color:var(--text)}#topicDiffButtons{display:grid;gap:10px}.topic-diff-btn{display:block;width:100%;padding:11px 12px;border:1px solid var(--border);background:#f8fafc;border-radius:8px;cursor:pointer;font-size:.95rem;font-weight:700;color:var(--text);transition:background .15s,color .15s}.topic-diff-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px)}.topic-diff-btn[data-diff=easy]{border-color:#bbf7d0;background:#f0fdf4}.topic-diff-btn[data-diff=medium]{border-color:#fde68a;background:#fffbeb}.topic-diff-btn[data-diff=hard]{border-color:#fecaca;background:#fef2f2}.weak-topics{background:#fef3c7;border-radius:10px;padding:14px 16px;margin:16px 0;text-align:left}.weak-topics-title{font-weight:700;font-size:.82rem;color:#92400e;text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.weak-topic-item{font-size:.88rem;color:#78350f;padding:3px 0;display:flex;justify-content:space-between}.weak-topic-item span{opacity:.7;font-size:.82rem}.result-signin-note{background:#eff6ff;border:1px solid #c7d2fe;border-radius:10px;padding:12px 14px;margin:14px 0;font-size:.85rem;color:var(--text-muted);line-height:1.4;text-align:left}.result-signin-link{background:0 0;border:none;padding:0;font-size:inherit;font-weight:700;color:var(--primary);text-decoration:underline;cursor:pointer;font-family:inherit}.review-modal-content{max-height:80vh;overflow-y:auto;text-align:left}.review-item{padding:16px 0;border-bottom:1px solid var(--border)}.review-item:last-child{border-bottom:none}.review-q{font-weight:600;font-size:.92rem;margin-bottom:10px;line-height:1.5}.review-opts{display:flex;flex-direction:column;gap:4px}.review-opt{padding:7px 10px;border-radius:6px;font-size:.85rem;background:var(--card-bg);border:1px solid var(--border)}.review-correct{background:#dcfce7;border-color:#86efac;color:#166534;font-weight:600}.review-wrong{background:#fee2e2;border-color:#fca5a5;color:#991b1b}.review-explanation{font-size:.82rem;color:var(--text-muted);margin-top:10px;line-height:1.5;padding:8px 10px;background:var(--bg-secondary,#f8fafc);border-radius:6px}.review-topic-link{display:inline-block;margin-top:10px;font-size:.8rem;color:var(--primary);background:#eff6ff;border:none;border-radius:6px;padding:5px 10px;cursor:pointer;font-weight:600}.review-topic-link:hover{background:var(--primary);color:#fff}#learnMoreText h3{margin-top:24px;margin-bottom:10px;color:var(--primary);font-size:1.1rem}#learnMoreText li,#learnMoreText p{color:var(--text-muted);line-height:1.8;font-size:.96rem}#learnMoreText ul{padding-left:20px;margin-top:10px}#learnMoreText strong{color:var(--text)}#learnMoreTitle{font-size:1.8rem;margin-bottom:10px;color:var(--text)}#learnIntro{display:none;background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:18px 22px;color:var(--text-muted);font-size:.95rem;line-height:1.8;margin-bottom:24px}#learnIntro strong{color:var(--primary)}.class-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;cursor:pointer;transition:.25s;box-shadow:0 6px 20px rgba(0,0,0,.05);display:flex;flex-direction:column}.class-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 12px 30px rgba(37,99,235,.12)}.class-card-top{display:flex;align-items:center;gap:14px;margin-bottom:12px}.class-card-icon{font-size:2.2rem;flex-shrink:0}.class-card-title{font-size:1.2rem;font-weight:700;color:var(--primary)}.class-card-desc{color:var(--text-muted);font-size:.92rem;line-height:1.65;flex:1;margin-bottom:16px}.class-card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--border);font-size:.88rem;color:var(--text-muted)}.class-card-arrow{color:var(--primary);font-weight:600;font-size:.9rem}.topics-toolbar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:4px}.class-filter-group{display:flex;gap:8px;flex-wrap:wrap}.view-toggle-wrap{display:flex;gap:4px;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:3px;flex-shrink:0}.view-toggle-btn{border:none;background:0 0;border-radius:8px;padding:5px 11px;font-size:1rem;line-height:1;cursor:pointer;color:var(--text-muted);transition:.2s}.view-toggle-btn.active{background:var(--primary);color:#fff}#topicCardsList.list-mode{display:flex;flex-direction:column;gap:10px}.topic-list-row{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 16px;transition:border-color .2s;cursor:pointer}.topic-list-row:hover{border-color:var(--primary)}.topic-list-icon{font-size:1.6rem;flex-shrink:0}.topic-list-info{flex:1;min-width:0}.topic-list-title{font-weight:600;font-size:.98rem;margin-bottom:4px}.topic-list-row .mastery-badge{font-size:.72rem}.topic-list-row .bookmark-btn{flex-shrink:0}.topic-list-row .read-more-btn,.topic-list-row .topic-quiz-btn{flex-shrink:0;padding:6px 14px;font-size:.85rem;white-space:nowrap}.topic-list-unstarted{opacity:.85}.mastery-badge{display:inline-block;font-size:.72rem;font-weight:600;padding:2px 8px;border-radius:20px;margin-top:4px;letter-spacing:.01em}.mastery-none{background:#ecfccb;color:#4d7c0f}.mastery-vweak{background:#fee2e2;color:#b91c1c}.mastery-weak{background:#fef3c7;color:#92400e}.mastery-good{background:#d1fae5;color:#065f46}.mastery-strong{background:#bbf7d0;color:#14532d}.mastery-clickable{cursor:pointer;border:none;font-family:inherit;transition:opacity .15s,transform .15s}.mastery-clickable:hover{opacity:.8;transform:scale(1.05)}#performanceBuckets{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}.perf-bucket-summary-card{display:flex;flex-direction:column;align-items:flex-start;gap:7px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:14px;cursor:pointer;font-family:inherit;color:var(--text);text-align:left;box-shadow:0 4px 14px rgba(15,23,42,.04);transition:transform .15s,border-color .15s,box-shadow .15s}.perf-bucket-summary-card:focus-visible,.perf-bucket-summary-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 10px 24px rgba(37,99,235,.12);outline:0}.perf-bucket-summary-top{display:flex;align-items:center;gap:8px;width:100%}.perf-bucket-status-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.perf-bucket-summary-count{font-size:1.8rem;line-height:1;font-weight:800;color:var(--text)}.perf-bucket-summary-label{font-size:.88rem;font-weight:800}.perf-bucket-summary-hint{min-height:1.2em;color:var(--text-muted);font-size:.76rem}.perf-bucket-summary-action{margin-top:4px;color:var(--primary);font-size:.78rem;font-weight:800}.perf-bucket-summary-card.mastery-vweak .perf-bucket-status-dot{background:#ef4444}.perf-bucket-summary-card.mastery-weak .perf-bucket-status-dot{background:#f59e0b}.perf-bucket-summary-card.mastery-good .perf-bucket-status-dot{background:#10b981}.perf-topic-group{margin-bottom:14px}.perf-topic-group-header{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--bg-dark);border:1px solid var(--border);border-radius:10px;padding:9px 12px;margin-bottom:8px;font-size:.86rem;font-weight:800}.perf-topic-group-header span:last-child{color:var(--text-muted);font-size:.78rem}.perf-topic-group-list{display:grid;gap:8px}.perf-topic-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;width:100%;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:.88rem;font-family:inherit;color:var(--text);text-align:left;cursor:pointer;transition:border-color .15s,background .15s}.perf-topic-row:focus-visible,.perf-topic-row:hover{border-color:var(--primary);background:#f8fafc;outline:0}.perf-topic-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.perf-topic-meta{display:inline-flex;align-items:center;gap:8px;color:var(--text-muted);font-size:.82rem}.perf-topic-meta strong{color:var(--text)}.perf-topic-meta small{color:var(--text-muted)}.topic-review-header{display:flex;justify-content:space-between;align-items:center;padding:10px 0 14px;border-bottom:1px solid var(--border);margin-bottom:4px;font-size:.9rem;color:var(--text-muted);flex-wrap:wrap;gap:4px}.topic-review-header strong{color:var(--text);font-size:1rem}.topic-review-stats{display:flex;gap:10px;align-items:center;font-size:.85rem}.trs-correct{color:var(--success);font-weight:600}.trs-wrong{color:var(--error);font-weight:600}.trs-pct{color:var(--text-muted)}.timer-row{display:flex;align-items:center;gap:14px;padding:12px 16px;margin:16px 0 8px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;flex-wrap:wrap}.timer-toggle-label{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none}.timer-toggle-label input[type=checkbox]{display:none}.timer-toggle-track{width:40px;height:22px;background:#d1d5db;border-radius:11px;position:relative;transition:background .2s;flex-shrink:0}.timer-toggle-label input:checked~.timer-toggle-track{background:var(--primary)}.timer-toggle-thumb{position:absolute;top:3px;left:3px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}.timer-toggle-label input:checked~.timer-toggle-track .timer-toggle-thumb{transform:translateX(18px)}.timer-toggle-text{font-size:.95rem;font-weight:500;color:var(--text)}.timer-settings{display:none;align-items:center;gap:8px;font-size:.9rem;color:var(--text)}.timer-adj-btn{width:28px;height:28px;border:1px solid var(--border);border-radius:6px;background:#f3f4f6;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;transition:background .15s}.timer-adj-btn:hover{background:#e5e7eb}#timerDisplay{font-weight:600;min-width:32px;text-align:center;color:var(--primary)}.timer-per-q{color:var(--text-muted);font-size:.82rem}.timer-bar-wrap{height:4px;background:#e5e7eb;border-radius:2px;margin:4px 0 8px;overflow:hidden}.timer-bar-fill{height:100%;width:100%;border-radius:2px;transition:width .9s linear,background .3s}.bookmark-btn{background:0 0;border:none;font-size:1.2rem;cursor:pointer;color:#d1d5db;padding:2px 4px;line-height:1;transition:color .15s,transform .15s;flex-shrink:0;align-self:flex-start}.bookmark-btn:hover{color:#f59e0b;transform:scale(1.15)}.bookmark-btn.bookmarked{color:#f59e0b}.signin-reminder-banner{display:flex;align-items:center;justify-content:space-between;gap:16px;background:linear-gradient(135deg,#eff6ff,#f5f3ff);border:1px solid #c7d2fe;border-radius:14px;padding:16px 18px;margin-bottom:20px}.signin-reminder-text strong{display:block;margin-bottom:4px;font-size:.95rem}.signin-reminder-text p{font-size:.85rem;color:var(--text-muted);line-height:1.4;margin:0}.signin-reminder-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.signin-reminder-dismiss{background:0 0;border:none;font-size:1rem;color:var(--text-muted);cursor:pointer;padding:4px 8px}.signin-reminder-dismiss:hover{color:var(--text)}@media (max-width:600px){.signin-reminder-banner{flex-direction:column;align-items:stretch}.signin-reminder-actions{justify-content:space-between}}.subjects-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.subjects-header h2{margin:0}.saved-topics-toggle-btn{background:#fff;color:var(--text);border:1px solid var(--border);border-radius:20px;padding:6px 14px;font-size:.85rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:border-color .15s,background .15s}.saved-topics-toggle-btn:hover{background:var(--bg-card);border-color:currentColor}#aiTutorBtn{color:#7c3aed}#capsuleTopicsBtn{color:#db2777}#studyTimerMainBtn{color:#d97706}#savedTopicsBtn{color:#0891b2}.global-search-wrap{margin-bottom:18px}.global-search-input{width:100%;padding:11px 16px;border:1px solid var(--border);border-radius:12px;font-size:1rem;background:var(--bg-card);color:var(--text);outline:0;box-sizing:border-box;transition:border-color .2s}.global-search-input:focus{border-color:var(--primary)}.topic-search-wrap{grid-column:1/-1;margin-bottom:10px}#topicCardsList{grid-column:1/-1;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.saved-screen-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}.saved-screen-header h2{margin:0}.capsule-filter-group{margin-bottom:14px}.capsule-filter-label{font-size:.75rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}.saved-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-bottom:28px}.topic-search-input{width:100%;padding:9px 14px;border:1px solid var(--border);border-radius:10px;font-size:.95rem;background:var(--bg-card);color:var(--text);outline:0;transition:border-color .2s}.topic-search-input:focus{border-color:var(--primary)}.no-topics-msg{text-align:center;color:var(--text-muted);padding:32px 0;font-size:.95rem}.branch-search-wrap{margin-bottom:14px}.search-results-label{font-size:.85rem;color:var(--text-muted);margin-bottom:10px;padding:0 2px}.search-branch-tag{font-size:.75rem;color:var(--text-muted);margin-top:2px}.search-result-card{border-left:3px solid var(--primary)}.search-result-snippet{font-size:.78rem;color:var(--text-muted);background:var(--bg-dark);border-radius:6px;padding:6px 9px;margin:4px 0;font-style:italic;line-height:1.4}.saved-section{margin-bottom:18px}.saved-section-title{font-size:.82rem;font-weight:600;color:#b45309;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.saved-topics-row{display:flex;flex-wrap:wrap;gap:8px}.saved-topic-chip{background:#fef3c7;border:1px solid #fde68a;color:#92400e;border-radius:20px;padding:5px 12px;font-size:.82rem;cursor:pointer;transition:background .15s,transform .1s;white-space:nowrap}.saved-topic-chip:hover{background:#fde68a;transform:scale(1.03)}.continue-btn:disabled{opacity:.5;cursor:not-allowed;background:#9ca3af}.subjects-header-actions{display:flex;gap:8px;flex-wrap:wrap}.study-today-banner{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;border-radius:12px;padding:10px 16px;font-size:.92rem;margin-bottom:18px}.study-template-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.study-template-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;cursor:pointer;transition:.2s;box-shadow:0 4px 14px rgba(0,0,0,.04)}.study-template-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:0 10px 24px rgba(37,99,235,.12)}.study-template-name{font-weight:700;font-size:1.05rem;color:var(--primary);margin-bottom:6px}.study-template-desc{font-size:.85rem;color:var(--text-muted);line-height:1.5}.study-custom-inputs{display:flex;flex-direction:column;gap:14px;max-width:320px}.study-custom-inputs label{display:flex;justify-content:space-between;align-items:center;font-size:.92rem;gap:10px}.study-custom-inputs input{width:90px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;text-align:center}.study-active-timer{text-align:center;padding:20px 0}.study-phase-label{font-size:1.15rem;font-weight:700;color:var(--primary);margin-bottom:8px}.study-countdown{font-size:3.4rem;font-weight:800;letter-spacing:2px;margin-bottom:18px}.study-progress-bar{width:100%;max-width:360px;height:10px;background:var(--border);border-radius:8px;margin:0 auto 14px;overflow:hidden}.study-progress-fill{height:100%;width:0%;background:var(--primary);border-radius:8px;transition:width 1s linear}.study-session-count{color:var(--text-muted);font-size:.88rem;margin-bottom:18px}.study-timer-controls{display:flex;gap:12px;justify-content:center}.study-timer-controls .btn{min-width:110px}.progress-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:28px}.progress-stat-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px 10px;text-align:center;box-shadow:0 4px 14px rgba(0,0,0,.04)}.progress-stat-value{font-size:1.8rem;font-weight:800;color:var(--primary)}.progress-stat-label{font-size:.82rem;color:var(--text-muted);margin-top:4px}.progress-history-title{font-weight:600;margin-bottom:12px;color:var(--text-muted);font-size:.9rem}.progress-day-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}.progress-day-label{width:90px;flex-shrink:0;font-size:.85rem;color:var(--text-muted)}.progress-day-bar-wrap{flex:1;height:14px;background:var(--border);border-radius:8px;overflow:hidden}.progress-day-bar{height:100%;background:var(--primary);border-radius:8px}.progress-day-minutes{width:60px;flex-shrink:0;text-align:right;font-size:.85rem;font-weight:600}@media (max-width:480px){.progress-stats-grid{grid-template-columns:1fr}}.learn-more-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.learn-more-header h2{margin:0}.clear-highlights-btn{background:0 0;border:1px solid var(--border);border-radius:8px;padding:6px 10px;font-size:.8rem;cursor:pointer;color:var(--text-muted);white-space:nowrap;flex-shrink:0;transition:.15s}.clear-highlights-btn:hover{border-color:var(--primary);color:var(--primary)}.highlight-hint{font-size:.78rem;color:var(--text-muted);margin-top:6px}.highlight-toolbar{display:flex;gap:2px;background:#1f2937;border-radius:10px;padding:5px;box-shadow:0 8px 20px rgba(0,0,0,.3);z-index:9999}.hl-swatch{border:none;background:0 0;font-size:1.05rem;cursor:pointer;padding:4px 7px;border-radius:6px;transition:background .15s}.hl-swatch:hover{background:rgba(255,255,255,.15)}mark.hl{border-radius:3px;padding:1px 2px;cursor:pointer;transition:filter .15s}mark.hl:hover{filter:brightness(.92)}.highlight-remove-popup{position:fixed;z-index:9999}.highlight-remove-popup button{background:#1f2937;color:#fff;border:none;border-radius:8px;padding:8px 14px;font-size:.85rem;cursor:pointer;white-space:nowrap;box-shadow:0 6px 16px rgba(0,0,0,.25)}.highlight-remove-popup button:hover{background:#111827}mark.hl-yellow{background:#fef08a}mark.hl-green{background:#bbf7d0}mark.hl-red{background:#fecaca}.capsule-hint{color:var(--text-muted);font-size:.88rem;margin-bottom:16px}.capsule-badge{font-size:.85rem;margin-left:2px}.capsule-concept-card{background:var(--bg-card);border:1px solid var(--border);border-left:4px solid #f59e0b;border-radius:12px;padding:16px 18px;display:flex;flex-direction:column;gap:8px}.capsule-concept-header{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.capsule-concept-title{font-weight:700;font-size:1rem;line-height:1.3}.capsule-concept-fact{background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:8px 12px;font-size:.88rem;font-weight:600;color:#92400e;line-height:1.45}.capsule-concept-note{font-size:.85rem;color:var(--text-muted);line-height:1.45;margin:0}.capsule-concept-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:4px;padding-top:10px;border-top:1px solid var(--border)}.capsule-concept-parent{font-size:.78rem;color:var(--text-muted)}.capsule-parent-link-btn{background:0 0;border:1px solid var(--border);border-radius:20px;padding:5px 12px;font-size:.78rem;font-weight:600;color:var(--primary);cursor:pointer;white-space:nowrap;font-family:inherit;transition:border-color .15s}.capsule-parent-link-btn:hover{border-color:var(--primary)}.ai-tutor-connect-box{max-width:520px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:0 6px 20px rgba(0,0,0,.05)}.ai-tutor-steps{margin:14px 0 18px;padding-left:22px;line-height:1.8;font-size:.92rem}.ai-tutor-link{color:#2563eb;text-decoration:underline}.ai-tutor-link:hover{color:#1d4ed8}.ai-key-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:10px;font-size:.95rem;box-sizing:border-box;margin-bottom:12px}.ai-tutor-privacy-note{margin-top:14px;font-size:.8rem;color:var(--text-muted);line-height:1.5}.ai-chat-content{max-width:620px;display:flex;flex-direction:column;height:72vh;padding:18px}.ai-chat-header{align-items:center;padding-bottom:12px;border-bottom:1px solid var(--border)}.ai-chat-close-btn{width:34px;height:34px;border:1px solid var(--border);border-radius:50%;background:var(--bg-card);color:var(--text-muted);cursor:pointer;font-size:1.2rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:.15s}.ai-chat-close-btn:hover{border-color:var(--primary);color:var(--primary);background:#fff}.ai-chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;margin:14px -6px 14px 0;padding:2px 8px 2px 0}.ai-chat-msg{padding:11px 14px;border-radius:14px;font-size:.92rem;line-height:1.6;max-width:88%;overflow-wrap:anywhere}.ai-chat-msg-user{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:5px}.ai-chat-msg-assistant{background:var(--bg-card);border:1px solid var(--border);align-self:flex-start;border-bottom-left-radius:5px}.ai-chat-msg-assistant :first-child{margin-top:0}.ai-chat-msg-assistant :last-child{margin-bottom:0}.ai-chat-msg-assistant ol,.ai-chat-msg-assistant ul{padding-left:20px;margin:8px 0}.ai-chat-msg-assistant h1,.ai-chat-msg-assistant h2,.ai-chat-msg-assistant h3{font-size:1rem;line-height:1.35;margin:10px 0 6px}.ai-chat-presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:4px}.ai-chat-preset-chip{border:1px solid var(--border);background:var(--bg-card);color:var(--text-muted);border-radius:999px;padding:6px 12px;font-size:.82rem;cursor:pointer;transition:.15s;white-space:nowrap}.ai-chat-preset-chip:hover{border-color:var(--primary);color:var(--primary);background:#fff}.ai-chat-attachment-preview{align-items:center;gap:8px;padding:6px 10px;margin-bottom:6px;border:1px solid var(--border);border-radius:10px;background:var(--bg-card);font-size:.85rem}.ai-chat-attachment-thumb{width:32px;height:32px;object-fit:cover;border-radius:6px;flex-shrink:0}.ai-chat-attachment-icon{font-size:1.1rem;flex-shrink:0}.ai-chat-attachment-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-muted)}.ai-chat-attachment-remove{border:none;background:0 0;color:var(--text-muted);font-size:1.1rem;line-height:1;cursor:pointer;flex-shrink:0;padding:2px 4px}.ai-chat-attachment-remove:hover{color:var(--primary)}.ai-chat-msg-attachment-thumb{display:block;width:100%;max-width:220px;max-height:160px;min-height:60px;border-radius:10px;margin-bottom:6px;object-fit:contain;background:rgba(0,0,0,.04)}.ai-chat-msg-attachment-file{font-size:.85rem;opacity:.85;margin-bottom:6px}.ai-chat-input-row{display:flex;align-items:center;gap:8px;padding-top:12px;border-top:1px solid var(--border)}.ai-chat-attach-btn{width:38px;height:38px;border:1px solid var(--border);border-radius:50%;background:var(--bg-card);color:var(--text-muted);cursor:pointer;font-size:1.05rem;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:.15s}.ai-chat-attach-btn:hover{border-color:var(--primary);color:var(--primary);background:#fff}.ai-chat-input{flex:1;padding:11px 14px;border:1px solid var(--border);border-radius:999px;font-size:.95rem;outline:0}.ai-chat-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}#aiChatSendBtn{border-radius:999px;padding:10px 18px;flex-shrink:0}.topic-diagram{margin:18px 0;text-align:center;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:16px}.topic-diagram svg{max-width:100%;height:auto}.topic-diagram img{max-width:100%;height:auto;border-radius:8px}.diagram-caption{font-size:.8rem;color:var(--text-muted);margin:10px 0 0;line-height:1.5}.global-study-widget{position:fixed;bottom:18px;right:18px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);border-radius:30px;padding:8px 10px 8px 14px;box-shadow:0 6px 18px rgba(0,0,0,.12);cursor:pointer;z-index:900;transition:border-color .2s}.global-study-widget:hover{border-color:var(--primary)}.global-study-widget.gsw-break{border-color:#10b981}.gsw-icon{font-size:1.1rem}.gsw-time{font-weight:700;font-size:.95rem;min-width:48px;text-align:center}.gsw-pause-btn{border:none;background:var(--bg-card);border-radius:50%;width:28px;height:28px;font-size:.85rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.gsw-pause-btn:hover{background:var(--border)}@media (max-width:767px){.global-study-widget{bottom:74px;right:12px;padding:10px;gap:6px}.global-study-widget .gsw-time{display:none}}.mock-gate-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:24px 22px;max-width:540px;margin:0 auto;box-shadow:0 4px 14px rgba(0,0,0,.04)}.mock-gate-row{margin-bottom:14px;line-height:1.5}.mock-gate-hint{font-size:.85rem;color:var(--text-muted);margin-top:18px}.mock-test-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:12px 16px;margin-bottom:18px;position:sticky;top:0;z-index:5}.mock-test-timer{font-size:1.2rem;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums}.mock-test-timer.mock-timer-urgent{color:var(--error)}.mock-test-section-label{font-weight:700;color:var(--text);background:var(--bg-dark);padding:4px 14px;border-radius:20px;font-size:.85rem}.mock-test-qnum{font-size:.85rem;color:var(--text-muted);margin-bottom:8px;font-weight:600}.mock-test-nav{display:flex;gap:10px;margin:18px 0}.mock-test-nav button{flex:1}.mock-test-palette{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:16px}.mock-palette-stats{display:flex;gap:18px;margin-bottom:14px;font-size:.85rem;font-weight:700}.mock-palette-stat.answered{color:#065f46}.mock-palette-stat.unanswered{color:var(--text-muted)}.mock-palette-tabs{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:14px}.mock-palette-tab{border:1px solid var(--border);background:var(--bg-dark);color:var(--text);border-radius:8px;padding:10px;font-weight:700;font-size:.88rem;cursor:pointer;transition:border-color .15s,background .15s,color .15s}.mock-palette-tab:hover{border-color:var(--success)}.mock-palette-tab.active{background:var(--success);border-color:var(--success);color:#fff}.mock-palette-grid{display:grid;grid-template-columns:repeat(9,1fr);gap:6px}.mock-palette-cell{border:1px solid var(--border);background:var(--bg-dark);color:var(--text);border-radius:6px;padding:6px 0;font-size:.78rem;font-weight:600;cursor:pointer;transition:border-color .15s,background .15s}.mock-palette-cell:hover{border-color:var(--primary)}.mock-palette-cell.answered{background:#d1fae5;border-color:#065f46;color:#065f46}.mock-palette-cell.current{outline:2px solid var(--primary);outline-offset:1px}.mock-result-sections{margin:18px 0}.mock-result-section-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);font-size:.9rem}.mock-result-section-row:last-child{border-bottom:none}.mock-result-section-name{font-weight:700;flex-shrink:0}.mock-result-section-score{text-align:right;font-weight:700}.mock-result-section-detail{display:block;font-weight:400;font-size:.78rem;color:var(--text-muted)}.mock-result-actions{display:flex;gap:10px;margin-top:8px}.mock-result-actions button{flex:1}@media (max-width:480px){.mock-palette-grid{grid-template-columns:repeat(6,1fr)}}.air-estimate-card{background:linear-gradient(135deg,#eff6ff,#f5f3ff);border:1px solid #c7d2fe;border-radius:14px;padding:20px;margin:20px 0;text-align:center}.air-estimate-label{font-weight:700;font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px}.air-estimate-range{font-size:1.8rem;font-weight:800;color:var(--primary);margin-bottom:6px}.air-estimate-basis{font-size:.85rem;color:var(--text);margin-bottom:10px}.air-estimate-disclaimer{font-size:.74rem;color:var(--text-muted);line-height:1.4;max-width:480px;margin:0 auto}.air-estimate-empty{color:var(--text-muted);margin-bottom:14px}.mock-history-toggle-btn{display:block;width:100%;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:14px;margin:20px 0;font-size:.92rem;font-weight:700;color:var(--text);cursor:pointer;text-align:center;transition:border-color .15s}.mock-history-toggle-btn:hover{border-color:var(--primary);color:var(--primary)}.mock-history-row{width:100%;display:flex;justify-content:space-between;align-items:center;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin-bottom:8px;font-size:.9rem;font-family:inherit;color:var(--text);text-align:left;cursor:pointer;transition:border-color .15s}.mock-history-row:hover{border-color:var(--primary)}.mock-history-date{color:var(--text-muted);font-weight:600}.mock-history-score{font-weight:700}.mock-history-percent{font-weight:400;color:var(--text-muted)}.activity-heatmap-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px;margin:20px 0}.activity-heatmap-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:14px}.activity-heatmap-title{font-weight:700;font-size:1rem}.activity-heatmap-legend{display:flex;align-items:center;gap:3px;font-size:.78rem;color:var(--text-muted)}.activity-heatmap-legend .heat-cell{margin:0 1px}.activity-heatmap-hint{font-size:.78rem;color:var(--text-muted);margin-top:12px}.activity-heatmap-scroll{overflow-x:auto;padding-bottom:4px}.activity-heatmap{display:inline-block;min-width:100%}.heatmap-months{display:flex;gap:3px;margin-bottom:4px}.heatmap-month-label{width:11px;flex-shrink:0;font-size:.66rem;color:var(--text-muted);white-space:nowrap;overflow:visible}.heatmap-grid{display:flex;gap:3px}.heatmap-week{display:flex;flex-direction:column;gap:3px}.heat-cell{width:11px;height:11px;border-radius:2px;background:#ebedf0}.heat-cell.heat-empty{background:0 0}.heat-cell.heat-0{background:#ebedf0}.heat-cell.heat-1{background:#c8f0db}.heat-cell.heat-2{background:#8fe0b8}.heat-cell.heat-3{background:#34d399}.heat-cell.heat-4{background:#10b981}.name-modal{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:1200;opacity:0;pointer-events:none;transition:opacity .2s}.name-modal.active{opacity:1;pointer-events:all}.name-modal-card{background:#fff;border-radius:20px;padding:36px 32px 32px;width:min(92%,380px);box-shadow:0 20px 60px rgba(15,23,42,.18);text-align:center;animation:.25s slideUpFade}@keyframes slideUpFade{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.name-modal-emoji{font-size:2.4rem;margin-bottom:10px;line-height:1}.name-modal-title{font-size:1.35rem;font-weight:800;margin:0 0 6px;color:var(--text)}.name-modal-sub{color:var(--text-muted);font-size:.95rem;margin:0 0 20px}.name-modal-input{width:100%;text-align:center;font-size:1rem;margin-bottom:14px}.name-modal-btn{width:100%;font-size:1rem;padding:13px}.name-modal-login{margin:14px 0 0;font-size:.85rem;color:var(--text-muted)}.name-modal-login-link{background:0 0;border:none;padding:0;font:inherit;font-weight:700;color:var(--primary);cursor:pointer;text-decoration:underline}.name-modal-login-link:hover{opacity:.8}@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}.shake{animation:.45s shake}.profile-gear-btn{position:relative;background:0 0;border:none;cursor:pointer;font-size:1.2rem;padding:4px;line-height:1}.profile-dot{position:absolute;top:1px;right:1px;width:9px;height:9px;background:#ef4444;border-radius:50%;border:2px solid #fff;pointer-events:none}.profile-completion-bar-wrap{margin:12px 0 4px}.profile-completion-label{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--text-muted);margin-bottom:6px}.profile-completion-pct{font-weight:700;color:var(--primary)}.profile-completion-track{height:5px;background:var(--border);border-radius:999px;overflow:hidden}.profile-completion-fill{height:100%;background:var(--primary);border-radius:999px;transition:width .4s}.sync-signed-in-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.9rem}.prompt-eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin:0 0 8px}.prompt-title{font-size:1.3rem;font-weight:700;margin:0 0 6px;line-height:1.3}.prompt-desc{font-size:.88rem;color:var(--text-muted);margin:0 0 20px;line-height:1.5}.prompt-field{margin-bottom:12px}.prompt-field label{display:block;font-size:.83rem;font-weight:600;margin-bottom:4px;color:var(--text)}.prompt-field label .req{color:#ef4444;margin-left:2px}.prompt-field .input-field{margin-bottom:0}.prompt-error{font-size:.82rem;color:#ef4444;min-height:1.1em;margin:4px 0 8px}.prompt-skip{display:block;text-align:center;font-size:.83rem;color:var(--text-muted);cursor:pointer;margin-top:10px;text-decoration:underline;background:0 0;border:none;padding:4px;width:100%}.prompt-skip:hover{color:var(--primary)}.prompt-stars{display:flex;gap:4px;justify-content:center;margin:4px 0 8px}.prompt-star{background:0 0;border:none;font-size:2.2rem;cursor:pointer;color:#d1d5db;transition:color .12s,transform .1s;padding:2px 4px;line-height:1}.prompt-star.active{color:#f59e0b}.prompt-star:hover{color:#f59e0b;transform:scale(1.15)}.prompt-star-label{text-align:center;font-size:.88rem;color:var(--text-muted);min-height:1.25em;margin:0 0 10px}.streak-banner{background:linear-gradient(135deg,rgba(245,158,11,.12),rgba(249,115,22,.06));border:1px solid rgba(245,158,11,.35);border-radius:10px;padding:9px 16px;font-size:.88rem;font-weight:700;color:#f59e0b;margin-bottom:12px;text-align:center;letter-spacing:.01em}.pwa-install-banner{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:11px 14px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:.84rem;color:var(--text-muted)}.pwa-install-dismiss{background:0 0;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem;padding:2px 6px;line-height:1;flex-shrink:0}.pwa-install-dismiss:hover{color:var(--text)}.topic-fb{border-top:1px solid var(--border);margin-top:18px;padding-top:16px}.topic-fb-ask{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}.topic-fb-q{font-size:.92rem;font-weight:600;color:var(--text)}.topic-fb-btns{display:flex;gap:8px}.topic-fb-btn{background:var(--bg-dark);border:1px solid var(--border);border-radius:20px;padding:6px 14px;font-size:.84rem;font-weight:600;color:var(--text);cursor:pointer;transition:border-color .15s,background .15s,transform .1s}.topic-fb-btn:hover{border-color:var(--primary);transform:translateY(-1px)}.topic-fb-btn:active{transform:translateY(0)}.topic-fb-more{margin-top:6px}.topic-fb-thanks{font-size:.88rem;color:var(--text);margin:0 0 8px;font-weight:600}.topic-fb-done{font-size:.88rem;color:#10b981;font-weight:600;text-align:center;margin:6px 0 0}.example-chip{display:inline-flex;align-items:center;gap:6px;background:rgba(245,158,11,.1);color:#b45309;border:1px solid rgba(245,158,11,.3);border-radius:20px;padding:5px 13px;font-size:.83rem;font-weight:600;cursor:pointer;margin:2px 0 4px;transition:background .15s}.example-chip:hover{background:rgba(245,158,11,.18)}#exampleModal{z-index:1300}.example-head{display:flex;align-items:center;gap:10px;margin-bottom:4px}.example-icon{font-size:1.6rem}.example-head h2{font-size:1.15rem;margin:0}.example-body{margin:14px 0 4px;line-height:1.7}.example-body p{margin:0 0 12px}.rl-takeaway{background:rgba(245,158,11,.1);border-left:3px solid #f59e0b;border-radius:6px;padding:10px 12px;margin-top:6px!important;font-size:.94rem}.example-fb{border-top:1px solid var(--border);margin-top:14px;padding-top:14px;text-align:center}.example-fb-q{font-size:.9rem;font-weight:600;display:block;margin-bottom:10px}.example-fb-btns{display:flex;gap:8px;justify-content:center}.free-tagline{display:inline-block;margin:6px auto 0;font-size:.82rem;font-weight:700;color:#059669;background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.28);border-radius:20px;padding:4px 14px}@media (max-width:500px){.free-tagline{font-size:.74rem;padding:4px 10px}}.mock-mode-toggle{display:flex;gap:8px;margin:0 0 14px}.mock-mode-tab{flex:1;padding:12px 10px;border:2px solid var(--border);border-radius:12px;background:var(--bg-card,#fff);color:var(--text);font-size:.95rem;font-weight:700;cursor:pointer;transition:border-color .15s,background .15s,color .15s}.mock-mode-tab:hover{border-color:var(--primary)}.mock-mode-tab.active{border-color:var(--primary);background:var(--primary);color:#fff}