@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--bg:#fff;--bg-surface:#f8faff;--bg-elevated:#eef2ff;--blue:#4f6ef7;--blue-dark:#3d5ce8;--blue-light:#eef2ff;--green:#22c55e;--green-light:#f0fdf4;--yellow:#fbbf24;--yellow-light:#fffbeb;--orange:#f97316;--red:#ef4444;--purple:#8b5cf6;--cyan:#06b6d4;--emerald:#10b981;--text-primary:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--border:#e2e8f0;--border-focus:#4f6ef7;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 16px #4f6ef71a;--shadow-lg:0 8px 40px #4f6ef726;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-surface);color:var(--text-primary);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{z-index:100;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:64px;box-shadow:var(--shadow-sm);background:#ffffffeb;justify-content:space-between;align-items:center;padding:0 32px;display:flex;position:sticky;top:0}.header-brand{align-items:center;gap:10px;display:flex}.brand-logo{font-size:22px}.brand-name{color:var(--blue);letter-spacing:-.3px;font-size:18px;font-weight:800}.brand-tag{color:var(--text-muted);background:var(--bg-elevated);border-radius:99px;padding:2px 8px;font-size:11px;font-weight:600}.header-right{align-items:center;gap:12px;display:flex}.lang-toggle{background:var(--bg-elevated);border:1px solid var(--border);cursor:pointer;color:var(--text-secondary);border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:13px;font-weight:600;transition:border-color .2s;display:flex}.lang-toggle:hover{border-color:var(--blue)}.lang-active{color:var(--blue)}.lang-inactive{color:var(--text-muted)}.lang-sep{color:var(--border)}.app-footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);margin-top:auto;padding:24px 32px;font-size:13px}.home-main{max-width:820px;margin:0 auto;padding:40px 24px 80px}.hero{text-align:center;padding:48px 0 40px}.hero-badge{background:var(--blue-light);color:var(--blue);border:1px solid var(--blue);border-radius:99px;align-items:center;gap:6px;margin-bottom:20px;padding:4px 12px;font-size:12px;font-weight:700;animation:.5s fadeDown;display:inline-flex}.hero-headline{color:var(--text-primary);margin-bottom:16px;font-size:clamp(28px,5vw,46px);font-weight:800;line-height:1.2;animation:.5s .1s both fadeDown}.hero-sub{color:var(--text-secondary);max-width:560px;margin:0 auto 24px;font-size:17px;animation:.5s .2s both fadeDown}.hero-agents{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:8px;animation:.5s .3s both fadeDown;display:flex}.hero-agent-pill{background:var(--bg);border:1px solid var(--border);color:var(--text-secondary);border-radius:99px;padding:5px 14px;font-size:12px;font-weight:600;transition:all .2s}.hero-agent-pill:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}.form-section{animation:.5s .35s both fadeUp}.lesson-form{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);flex-direction:column;gap:20px;padding:32px;display:flex}.form-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.field-group{flex-direction:column;gap:6px;display:flex}.field-label{color:var(--text-secondary);font-size:13px;font-weight:600}.field-input,.field-select,.field-textarea{border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);background:var(--bg);outline:none;width:100%;padding:11px 14px;font-family:inherit;font-size:15px;transition:border-color .2s,box-shadow .2s}.field-input:focus,.field-select:focus,.field-textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #4f6ef71f}.field-input-sm{margin-top:8px;padding:8px 12px;font-size:13px}.field-select{cursor:pointer;appearance:auto}.field-textarea{resize:vertical;min-height:70px}.divider{color:var(--text-muted);align-items:center;gap:12px;font-size:13px;display:flex}.divider:before,.divider:after{content:"";background:var(--border);flex:1;height:1px}.country-quickrow{flex-wrap:wrap;gap:8px;margin-top:4px;display:flex}.country-chip{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);align-items:center;gap:6px;padding:7px 12px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s;display:flex}.country-chip:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-1px)}.country-chip.active{border-color:var(--blue);background:var(--blue-light);color:var(--blue);font-weight:700}.country-flag{font-size:18px;line-height:1}.country-name{font-size:12px}.curriculum-badge{background:var(--green-light);border:1px solid var(--green);border-radius:var(--radius-sm);color:#166534;align-items:center;gap:8px;margin-top:8px;padding:6px 12px;font-size:13px;display:flex}.curriculum-badge-icon{font-size:14px}.curriculum-clear{cursor:pointer;color:var(--text-muted);background:0 0;border:none;margin-left:auto;padding:0 2px;font-size:14px}.curriculum-clear:hover{color:var(--red)}.persona-row{flex-wrap:wrap;gap:8px;margin-top:4px;display:flex}.persona-chip{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);padding:8px 14px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s}.persona-chip:hover{border-color:var(--blue);transform:translateY(-1px)}.persona-chip.active{border-color:var(--blue);background:var(--blue-light);color:var(--blue);font-weight:700}.language-chips{flex-wrap:wrap;gap:6px;margin-top:4px;display:flex}.lang-chip{background:var(--bg);border:1.5px solid var(--border);cursor:pointer;color:var(--text-secondary);border-radius:99px;padding:5px 12px;font-family:inherit;font-size:12px;font-weight:500;transition:all .15s}.lang-chip:hover{border-color:var(--blue)}.lang-chip.active{border-color:var(--blue);background:var(--blue-light);color:var(--blue);font-weight:700}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);text-align:center;cursor:pointer;background:var(--bg-surface);padding:28px;transition:all .2s}.upload-zone:hover,.upload-dragging{border-color:var(--blue);background:var(--blue-light)}.upload-has-file{border-style:solid;border-color:var(--green);background:var(--green-light)}.upload-icon{margin-bottom:8px;font-size:28px;display:block}.upload-label{color:var(--text-primary);font-size:15px;font-weight:600}.upload-hint{color:var(--text-muted);margin-top:4px;font-size:13px}.upload-selected{text-align:left;align-items:center;gap:12px;display:flex}.upload-file-icon{font-size:28px}.upload-filename{font-size:14px;font-weight:600}.upload-filesize{color:var(--text-muted);font-size:12px}.upload-remove{border:1px solid var(--border);cursor:pointer;width:28px;height:28px;color:var(--text-muted);background:0 0;border-radius:6px;justify-content:center;align-items:center;margin-left:auto;font-size:14px;display:flex}.upload-remove:hover{border-color:var(--red);color:var(--red)}.upload-limit-notice{border-radius:var(--radius-sm);color:#92400e;background:#fffbeb;border:1px solid #fcd34d;gap:8px;margin-top:10px;padding:12px;font-size:13px;display:grid}.upload-limit-notice a{color:var(--blue);font-weight:700}.form-error{color:#991b1b;border-radius:var(--radius-sm);background:#fef2f2;border:1px solid #fecaca;padding:10px 14px;font-size:14px}.generate-btn{background:linear-gradient(135deg, var(--blue), #6c5ce7);color:#fff;border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:10px;padding:16px 32px;font-family:inherit;font-size:16px;font-weight:700;transition:transform .15s,box-shadow .15s;display:flex;box-shadow:0 4px 16px #4f6ef74d}.generate-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #4f6ef766}.generate-btn:active{transform:translateY(0)}.generate-btn-icon{font-size:18px}.how-section{text-align:center;margin-top:56px}.how-title{margin-bottom:28px;font-size:22px;font-weight:700}.how-steps{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.how-step{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 16px;transition:transform .2s,box-shadow .2s}.how-step:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.how-num{background:var(--blue-light);width:36px;height:36px;color:var(--blue);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 10px;font-size:15px;font-weight:800;display:flex}.how-text{color:var(--text-secondary);font-size:13px}.progress-screen{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 64px);padding:40px 24px;display:flex}.progress-orb-wrap{margin-bottom:32px}.progress-orb{justify-content:center;align-items:center;width:100px;height:100px;transition:--orb-color .5s;display:flex;position:relative}.orb-ring{border:2px solid #0000;border-radius:50%;animation:linear infinite spin;position:absolute}.orb-ring-1{width:100px;height:100px;animation-duration:1.4s}.orb-ring-2{width:76px;height:76px;animation-duration:1s;animation-direction:reverse}.orb-ring-3{width:52px;height:52px;animation-duration:.8s}.orb-icon{z-index:1;font-size:26px}.progress-title{margin-bottom:12px;font-size:24px;font-weight:700}.progress-thinking{justify-content:center;align-items:center;gap:8px;min-height:24px;margin-bottom:28px;font-size:14px;font-weight:500;transition:color .4s;display:flex}.thinking-dots{align-items:center;gap:3px;display:flex}.thinking-dots span{background:currentColor;border-radius:50%;width:5px;height:5px;animation:.8s infinite bounce}.thinking-dots span:nth-child(2){animation-delay:.15s}.thinking-dots span:nth-child(3){animation-delay:.3s}.steps-list{flex-direction:column;gap:10px;width:100%;max-width:440px;margin-bottom:28px;display:flex}.step-row{border-radius:var(--radius-md);background:var(--bg);border:1.5px solid var(--border);text-align:left;align-items:flex-start;gap:14px;padding:12px 16px;transition:all .3s;display:flex}.step-active{border-color:var(--blue);background:var(--blue-light)}.step-done{border-color:var(--green);background:var(--green-light)}.step-indicator{border:2px solid var(--border);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;transition:all .3s;display:flex}.step-check{color:var(--green);font-size:14px;font-weight:700}.step-num{color:var(--text-muted);font-size:12px;font-weight:700}.step-spinner{border:2px solid #0000;border-top-color:var(--blue);border-radius:50%;width:14px;height:14px;animation:.7s linear infinite spin}.step-info{flex:1;align-items:flex-start;gap:8px;min-width:0;display:flex}.step-icon{flex-shrink:0;margin-top:1px;font-size:16px}.step-text-wrap{flex-direction:column;gap:2px;display:flex}.step-label{font-size:14px;font-weight:600}.step-msg{color:var(--text-secondary);font-size:12px;line-height:1.4}.step-done .step-label{color:var(--green)}.step-active .step-label{color:var(--blue)}.progress-bar-outer{background:var(--border);border-radius:99px;width:100%;max-width:440px;height:8px;margin-bottom:24px;overflow:hidden}.progress-bar-inner{border-radius:99px;height:100%;transition:width .6s}.progress-quote{color:var(--text-muted);max-width:440px;font-size:14px;font-style:italic}.dashboard-main{max-width:1200px;margin:0 auto;padding:32px 24px 80px}.dashboard-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.dashboard-header-left{flex:1}.dashboard-title{font-size:26px;font-weight:800}.dashboard-sub{color:var(--text-secondary);margin-bottom:10px;font-size:14px}.dashboard-context-pills{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.context-pill{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-secondary);border-radius:99px;padding:3px 10px;font-size:12px;font-weight:500}.persona-pill{color:#5b21b6;background:#ede9fe;border-color:#8b5cf6}.curriculum-confidence-badge{margin-top:6px;font-size:12px;font-weight:600}.new-lesson-btn{background:var(--bg);border:1.5px solid var(--blue);color:var(--blue);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;padding:9px 18px;font-family:inherit;font-size:14px;font-weight:600;transition:all .2s}.new-lesson-btn:hover{background:var(--blue-light)}.dashboard-header-right{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.analytics-bar{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-wrap:wrap;align-items:center;gap:0;margin-bottom:20px;padding:12px 20px;display:flex}.analytics-item{flex-direction:column;align-items:center;padding:4px 16px;display:flex}.analytics-value{color:var(--text-primary);font-size:15px;font-weight:700}.analytics-label{color:var(--text-muted);margin-top:2px;font-size:11px}.analytics-divider{background:var(--border);width:1px;height:36px}.lesson-summary-bar{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:20px;padding:16px 20px}.summary-objectives{flex-wrap:wrap;gap:8px;margin-bottom:10px;display:flex}.objective-tag{background:var(--blue-light);color:var(--blue);border-radius:99px;padding:3px 10px;font-size:12px;font-weight:600}.summary-text{color:var(--text-secondary);font-size:14px}.resources-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}.resource-card{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:10px;padding:20px;transition:transform .2s,box-shadow .2s;display:flex}.resource-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.resource-icon{font-size:28px}.resource-label{font-size:15px;font-weight:700}.resource-count{color:var(--text-muted);font-size:13px}.resource-desc{color:var(--text-secondary);font-size:12px;line-height:1.4}.resource-actions{flex-direction:column;gap:8px;margin-top:auto;display:flex}.btn-play{background:var(--blue);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;width:100%;padding:9px 12px;font-family:inherit;font-size:13px;font-weight:600;transition:background .2s}.btn-play:hover{background:var(--blue-dark)}.btn-download{background:var(--bg);border:1.5px solid var(--border);color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;width:100%;padding:9px 12px;font-family:inherit;font-size:13px;font-weight:600;transition:all .2s}.btn-download:hover{border-color:var(--blue);color:var(--blue)}.card-reveal{animation:.4s both cardReveal}@keyframes cardReveal{0%{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.insight-panel-grid{grid-template-columns:1fr 1fr;gap:20px;margin-bottom:24px;display:grid}.rationale-card{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-xl);padding:24px}.rationale-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}.rationale-title{font-size:16px;font-weight:700}.rationale-subtitle{color:var(--text-muted);margin-top:2px;font-size:12px}.confidence-badge{border-radius:var(--radius-md);text-align:center;border:2px solid;flex-shrink:0;padding:8px 12px}.confidence-value{font-size:20px;font-weight:800;line-height:1}.confidence-label{color:var(--text-muted);white-space:nowrap;margin-top:2px;font-size:10px}.rationale-choice{background:var(--bg-surface);border-radius:var(--radius-md);margin-bottom:12px;padding:12px 16px}.rationale-choice-header{align-items:center;gap:8px;margin-bottom:6px;display:flex}.rationale-choice-icon{font-size:18px}.rationale-choice-label{font-size:14px;font-weight:600}.rationale-choice-reason{color:var(--text-secondary);font-size:13px;line-height:1.5}.rationale-full{margin-bottom:16px}.rationale-full-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;font-weight:700}.rationale-full-text{color:var(--text-secondary);font-size:13px;line-height:1.6}.rationale-comparison{background:var(--bg-surface);border-radius:var(--radius-md);align-items:flex-start;gap:12px;margin-bottom:16px;padding:12px;display:flex}.rationale-compare-item{flex:1}.rationale-compare-vs{color:var(--text-muted);flex-shrink:0;align-self:center;font-size:18px}.rationale-compare-icon{margin-bottom:4px;font-size:20px}.rationale-compare-label{margin-bottom:4px;font-size:12px;font-weight:700}.rationale-compare-text{color:var(--text-secondary);font-size:12px;line-height:1.4}.rationale-notes{flex-direction:column;gap:8px;display:flex}.rationale-note{color:var(--text-secondary);background:var(--bg-surface);border-radius:var(--radius-sm);align-items:flex-start;gap:8px;padding:10px 12px;font-size:13px;display:flex}.rationale-note-icon{flex-shrink:0;font-size:15px}.quality-card{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-xl);padding:24px}.quality-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px;display:flex}.quality-header-left{flex:1}.quality-title{font-size:16px;font-weight:700}.quality-subtitle{color:var(--text-muted);margin-top:2px;font-size:12px}.quality-grade-badge{border-radius:var(--radius-md);text-align:center;border:3px solid;flex-shrink:0;padding:8px 14px}.quality-grade-letter{font-size:28px;font-weight:900;line-height:1}.quality-grade-score{color:var(--text-muted);margin-top:2px;font-size:12px;font-weight:600}.quality-dimensions{flex-direction:column;gap:12px;margin-bottom:20px;display:flex}.quality-dim-header{align-items:center;gap:6px;margin-bottom:5px;display:flex}.quality-dim-icon{font-size:14px}.quality-dim-label{flex:1;font-size:13px;font-weight:500}.quality-dim-score{font-size:13px;font-weight:700}.quality-bar-track{background:var(--bg-elevated);border-radius:99px;height:8px;overflow:hidden}.quality-bar-fill{border-radius:99px;height:100%;transition:width 1s}.quality-section{margin-bottom:14px}.quality-section-title{text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:12px;font-weight:700}.quality-strengths-title{color:#166534}.quality-weak-title{color:#92400e}.quality-strength-item,.quality-weak-item{align-items:flex-start;gap:8px;margin-bottom:6px;font-size:13px;display:flex}.quality-strength-dot{color:var(--green);flex-shrink:0;font-weight:700}.quality-weak-dot{color:var(--yellow);flex-shrink:0}.quality-suggestion{background:var(--bg-elevated);border-radius:var(--radius-md);align-items:flex-start;gap:10px;margin-bottom:14px;padding:12px 14px;display:flex}.quality-suggestion-icon{color:var(--blue);flex-shrink:0;font-size:18px}.quality-suggestion-label{text-transform:uppercase;letter-spacing:.5px;color:var(--blue);margin-bottom:3px;font-size:11px;font-weight:700}.quality-suggestion-text{color:var(--text-secondary);font-size:13px;line-height:1.5}.quality-blooms{margin-bottom:12px}.quality-blooms-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;font-weight:700}.quality-blooms-chips{flex-wrap:wrap;gap:6px;display:flex}.blooms-chip{border:1px solid;border-radius:99px;padding:3px 8px;font-size:11px;font-weight:600}.blooms-chip-present{color:#166534;background:#f0fdf4;border-color:#22c55e}.blooms-chip-missing{color:#9a3412;background:#fff7ed;border-color:#f97316}.quality-disclaimer{color:var(--text-muted);text-align:center;margin-top:8px;font-size:11px}.insights-panel{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-xl);margin-bottom:24px;padding:24px}.insights-header{margin-bottom:16px}.insights-title{margin-bottom:4px;font-size:17px;font-weight:700}.insights-sub{color:var(--text-muted);margin-bottom:10px;font-size:13px}.insights-meta{flex-wrap:wrap;gap:8px;display:flex}.meta-badge{border-radius:99px;padding:3px 10px;font-size:12px;font-weight:600}.meta-time{background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border)}.accordion-section{border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:10px;overflow:hidden}.accordion-trigger{background:var(--bg-surface);cursor:pointer;border:none;justify-content:space-between;align-items:center;width:100%;padding:12px 16px;font-family:inherit;transition:background .15s;display:flex}.accordion-trigger:hover{background:var(--bg-elevated)}.accordion-trigger-left{align-items:center;gap:8px;display:flex}.accordion-icon{font-size:16px}.accordion-title{color:var(--text-primary);font-size:13px;font-weight:700}.accordion-chevron{color:var(--text-muted);font-size:16px;transition:transform .2s}.accordion-chevron.open{transform:rotate(180deg)}.accordion-body{border-top:1px solid var(--border);padding:14px 16px}.misconception-card{background:var(--bg-surface);border-radius:var(--radius-md);border-left:3px solid var(--red);margin-bottom:10px;padding:12px;font-size:13px}.mis-mistake{color:#991b1b;margin-bottom:6px;font-weight:600}.mis-correction{color:#166534;margin-bottom:4px}.mis-example{color:var(--text-muted);font-style:italic}.tips-list{padding-left:18px}.tip-item{color:var(--text-secondary);margin-bottom:8px;font-size:13px;line-height:1.5}.examples-grid{flex-wrap:wrap;gap:8px;display:flex}.example-chip{background:var(--yellow-light);border:1px solid var(--yellow);color:#92400e;border-radius:99px;padding:4px 10px;font-size:12px}.intervention-text,.extension-text{color:var(--text-secondary);font-size:13px;line-height:1.6}.differentiation-note{background:var(--bg-elevated);border-radius:var(--radius-sm);color:var(--text-secondary);align-items:flex-start;gap:8px;margin-top:12px;padding:10px 12px;font-size:13px;display:flex}.diff-icon{flex-shrink:0;font-size:14px}.ai-disclaimer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);margin-top:8px;padding:16px;font-size:12px}.preview-overlay{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:1000;background:#0f172a99;justify-content:center;align-items:center;padding:24px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.preview-fullscreen{padding:0}.preview-modal{background:var(--bg);border-radius:var(--radius-xl);flex-direction:column;width:100%;max-width:900px;height:80vh;display:flex;overflow:hidden;box-shadow:0 24px 80px #0000004d}.preview-fullscreen .preview-modal{border-radius:0;max-width:100%;height:100vh}.preview-toolbar{border-bottom:1px solid var(--border);background:var(--bg-surface);flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 20px;display:flex}.preview-label{font-size:14px;font-weight:600}.preview-actions{gap:8px;display:flex}.preview-btn{background:var(--bg);border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:6px 12px;font-family:inherit;font-size:13px;transition:all .2s}.preview-btn:hover{border-color:var(--blue);color:var(--blue)}.preview-close:hover{border-color:var(--red);color:var(--red)}.preview-frame{border:none;flex:1;width:100%}@keyframes fadeDown{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@media (width<=1100px){.resources-grid{grid-template-columns:repeat(2,1fr)}.insight-panel-grid{grid-template-columns:1fr}}@media (width<=900px){.dashboard-grid{grid-template-columns:1fr}.insights-panel{max-height:none;position:static}.how-steps{grid-template-columns:repeat(2,1fr)}.analytics-bar{gap:8px}.analytics-item{padding:4px 8px}}@media (width<=600px){.form-grid,.resources-grid,.how-steps{grid-template-columns:1fr}.app-header{padding:0 16px}.lesson-form{padding:20px}.brand-tag{display:none}}.material-search-link{color:var(--blue);align-self:flex-start;font-size:13px;font-weight:600;text-decoration:none}.material-search-link:hover{text-decoration:underline}.curriculum-map{color:var(--text-secondary);margin-top:8px;font-size:12px;font-weight:600}.demo-scenario-row{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:16px;display:flex}.demo-scenario-btn{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text-secondary);cursor:pointer;font:inherit;padding:7px 10px;font-size:12px;font-weight:600}.demo-scenario-btn:hover{border-color:var(--blue);color:var(--blue)}.demo-error-actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.demo-error-actions button{background:var(--bg);border-radius:var(--radius-sm);color:#b91c1c;cursor:pointer;font:inherit;border:1px solid #fca5a5;padding:6px 9px;font-size:12px;font-weight:600}.demo-error-actions button:hover{border-color:#dc2626}.source-preview-notice{border-radius:var(--radius-sm);color:#92400e;background:#fffbeb;border:1px solid #f59e0b;margin:16px 0;padding:11px 14px;font-size:13px;font-weight:600}.topic-suggestions{flex-wrap:wrap;gap:7px;margin-top:2px;display:flex}.topic-suggestions button{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;font:inherit;padding:6px 9px;font-size:12px}.topic-suggestions button:hover{border-color:var(--blue);color:var(--blue)}@media (width<=600px){.library-card{padding:22px}.library-header{flex-direction:column}.library-header .teach-back{margin:0}.library-grid{grid-template-columns:1fr}}.teach-main,.student-main{background:linear-gradient(135deg,#eff6ff,#f8fafc 50%,#ecfdf5);min-height:calc(100vh - 72px);padding:48px 20px}.teach-card,.student-card{background:var(--bg);border:1px solid var(--border);border-radius:24px;max-width:820px;margin:0 auto;padding:32px;box-shadow:0 20px 60px #0f172a1f}.student-card{max-width:560px;margin-top:8vh}.teach-back{color:var(--blue);cursor:pointer;font:inherit;background:0 0;border:0;margin:0 auto 16px;font-weight:700;display:block}.teach-eyebrow,.student-card>span,.student-card form>span{letter-spacing:.1em;color:var(--blue);font-size:12px;font-weight:800}.teach-primary,.teach-secondary,.teach-link,.teach-launch{cursor:pointer;font:inherit;border:0;border-radius:10px;padding:12px 18px;font-weight:700}.teach-primary,.teach-launch{color:#fff;background:linear-gradient(135deg,#2563eb,#4f46e5)}.teach-secondary{color:#991b1b;background:#fee2e2}.teach-link{color:#1d4ed8;background:#eff6ff;margin-top:10px;display:block}.teach-join{background:#f8fbff;border:1px solid #bfdbfe;border-radius:16px;flex-wrap:wrap;align-items:center;gap:28px;margin:28px 0;padding:22px;display:flex}.teach-join code{letter-spacing:.12em;color:#1e3a8a;margin:7px 0;font-size:30px;font-weight:800;display:block}.teach-join p{color:var(--text-muted);max-width:330px;font-size:13px}.teach-stats{grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0;display:grid}.teach-stats div{background:var(--bg-elevated);border-radius:12px;gap:4px;padding:14px;display:grid}.teach-stats strong{text-transform:capitalize;font-size:22px}.teach-stats span{color:var(--text-muted);font-size:12px}.teach-error{color:#b91c1c;margin-top:16px;font-weight:600}.student-card label{margin:24px 0 8px;font-weight:600;display:block}.student-card textarea{box-sizing:border-box;border:1px solid var(--border);width:100%;font:inherit;border-radius:12px;margin-bottom:14px;padding:12px}.library-entry{color:#1d4ed8;cursor:pointer;font:inherit;background:#fff;border:1px solid #bfdbfe;border-radius:999px;margin-top:14px;padding:8px 13px;font-size:13px;font-weight:700}.library-entry:hover{background:#eff6ff}.library-main{background:linear-gradient(135deg,#eff6ff,#f8fafc 50%,#ecfdf5);min-height:calc(100vh - 72px);padding:48px 20px}.library-card{background:var(--bg);border:1px solid var(--border);border-radius:24px;max-width:1040px;margin:0 auto;padding:32px;box-shadow:0 20px 60px #0f172a1f}.library-header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.library-header h1{margin:7px 0}.library-header p{color:var(--text-secondary);margin:0}.library-header .teach-back{margin:4px 0}.library-actions,.library-lesson-actions{flex-wrap:wrap;gap:8px;margin-top:24px;display:flex}.library-actions button:disabled{cursor:not-allowed;opacity:.5}.library-danger,.library-delete{color:#be123c;cursor:pointer;font:inherit;background:#fff1f2;border:1px solid #fecaca;border-radius:10px;padding:10px 14px;font-weight:700}.library-delete{padding:10px 12px}.library-notice{color:#166534;background:#ecfdf5;border-radius:10px;padding:11px 13px;font-weight:600}.library-empty{text-align:center;background:#f8fbff;border:1px dashed #bfdbfe;border-radius:16px;margin-top:24px;padding:48px 20px}.library-empty span{font-size:32px}.library-empty p{color:var(--text-secondary);max-width:480px;margin:8px auto 18px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;display:grid}.library-lesson{border:1px solid var(--border);background:var(--bg-surface);border-radius:16px;padding:20px}.library-lesson-top{color:var(--text-muted);justify-content:space-between;gap:10px;font-size:12px;font-weight:700;display:flex}.library-lesson-top span{color:var(--blue)}.library-lesson h2{margin:10px 0 5px;font-size:18px}.library-lesson p{color:var(--text-secondary);margin:0;font-size:13px}.library-progress{color:#166534;margin-top:13px;font-size:12px;font-weight:700}.visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:root{--accent-purple:#8b5cf6;--accent-blue:#4f6ef7;--accent-teal:#06b6d4;--accent-green:#22c55e;--accent-orange:#f97316}.study-hub{background:var(--bg-surface);border:1px solid var(--border);border-radius:20px;margin:48px 0 32px;overflow:hidden}.study-hub-header{padding:28px 32px 0}.study-hub-title{color:var(--text-primary);margin:0 0 4px;font-size:22px;font-weight:700}.study-hub-sub{color:var(--text-secondary);margin:0 0 20px;font-size:14px}.study-hub-tabs{border-bottom:1px solid var(--border);scrollbar-width:none;gap:4px;padding:0 24px;display:flex;overflow-x:auto}.study-hub-tabs::-webkit-scrollbar{display:none}.study-hub-tab{color:var(--text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;align-items:center;gap:6px;padding:12px 16px;font-size:13px;font-weight:500;transition:color .2s,border-color .2s;display:flex}.study-hub-tab:hover{color:var(--text-primary)}.study-hub-tab--active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.sh-tab-icon{font-size:15px}.sh-tab-count{background:var(--blue-light);color:var(--blue);border-radius:10px;padding:1px 7px;font-size:11px;font-weight:700}.study-hub-tab--active .sh-tab-count{background:var(--blue);color:#fff}.study-hub-panel{padding:28px 32px 32px}.flashcard-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.flashcard-title{color:var(--text-primary);margin:0;font-size:17px;font-weight:700}.flashcard-controls{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.fc-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:8px;padding:6px 14px;font-size:13px;transition:all .2s}.fc-btn:hover{border-color:var(--blue);color:var(--blue)}.fc-btn--active{background:var(--blue);color:#fff;border-color:var(--blue)}.fc-counter{color:var(--text-secondary);font-size:13px;font-weight:600}.fc-mastered{color:var(--green);font-size:13px;font-weight:600}.fc-progress-bar{background:var(--border);border-radius:2px;height:4px;margin-bottom:24px;overflow:hidden}.fc-progress-fill{background:linear-gradient(90deg, var(--blue), var(--purple));height:100%;transition:width .4s}.fc-scene{perspective:1200px;cursor:pointer;max-width:560px;height:220px;margin:0 auto 20px}.fc-card{width:100%;height:100%;transform-style:preserve-3d;border-radius:16px;transition:transform .45s cubic-bezier(.4,0,.2,1);position:relative}.fc-card--flipped{transform:rotateY(180deg)}.fc-card--mastered{box-shadow:0 0 0 3px var(--green)}.fc-face{backface-visibility:hidden;text-align:center;box-shadow:var(--shadow-md);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:28px;display:flex;position:absolute;inset:0}.fc-face--front{background:linear-gradient(135deg, #fff 0%, var(--bg-elevated) 100%);border:1.5px solid var(--border)}.fc-face--back{background:linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);color:#fff;transform:rotateY(180deg)}.fc-emoji{font-size:36px}.fc-term{color:var(--text-primary);margin:0;font-size:20px;font-weight:700}.fc-definition{color:#fffffff2;margin:0;font-size:15px;line-height:1.6}.fc-code{color:var(--text-muted);background:#0000000f;border-radius:12px;padding:3px 10px;font-size:11px}.fc-face--back .fc-code{color:#fffc;background:#fff3}.fc-hint{color:var(--text-muted);margin-top:8px;font-size:12px}.fc-nav{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;display:flex}.fc-nav-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:10px;padding:8px 20px;font-size:13px;transition:all .2s}.fc-nav-btn:disabled{opacity:.4;cursor:not-allowed}.fc-nav-btn:not(:disabled):hover{border-color:var(--blue);color:var(--blue)}.fc-nav-btn--master{border-color:var(--green);color:var(--green)}.fc-nav-btn--mastered{background:var(--green);color:#fff}.sn-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.sn-title{color:var(--text-primary);margin:0 0 4px;font-size:17px;font-weight:700}.sn-subtitle{color:var(--text-secondary);margin:0 0 8px;font-size:13px}.sn-grade-badge{background:var(--blue-light);color:var(--blue);border-radius:12px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.sn-print-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;white-space:nowrap;border-radius:8px;padding:8px 16px;font-size:13px;transition:all .2s}.sn-print-btn:hover{border-color:var(--blue);color:var(--blue)}.sn-sections{flex-direction:column;gap:8px;display:flex}.sn-section{border:1px solid var(--border);border-radius:12px;transition:border-color .2s;overflow:hidden}.sn-section--open{border-color:var(--blue-dark)}.sn-section-toggle{cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:12px;width:100%;padding:14px 18px;transition:background .2s;display:flex}.sn-section-toggle:hover{background:var(--bg-elevated)}.sn-section-num{background:var(--blue-light);width:28px;height:28px;color:var(--blue);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.sn-section--open .sn-section-num{background:var(--blue);color:#fff}.sn-section-heading{color:var(--text-primary);flex:1;font-size:14px;font-weight:600}.sn-section-arrow{color:var(--text-muted);font-size:12px}.sn-section-body{padding:0 18px 16px}.sn-content{color:var(--text-secondary);margin:0 0 12px;font-size:14px;line-height:1.7}.sn-key-points{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.sn-key-point{color:var(--text-primary);background:var(--bg-elevated);border-radius:8px;align-items:flex-start;gap:8px;padding:8px 12px;font-size:13.5px;display:flex}.sn-bullet{color:var(--blue);flex-shrink:0}.me-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.me-title{color:var(--text-primary);margin:0 0 10px;font-size:17px;font-weight:700}.me-meta{flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.me-badge{border-radius:12px;padding:3px 10px;font-size:12px;font-weight:600}.me-badge--board{color:var(--accent-purple);background:#ede9fe}.me-badge--format{background:var(--blue-light);color:var(--blue)}.me-badge--grade{background:var(--green-light);color:#15803d}.me-stats{color:var(--text-secondary);align-items:center;gap:8px;font-size:13px;display:flex}.me-actions{flex-wrap:wrap;flex-shrink:0;gap:8px;display:flex}.me-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;white-space:nowrap;border-radius:8px;padding:8px 16px;font-size:13px;transition:all .2s}.me-btn:hover{border-color:var(--blue);color:var(--blue)}.me-btn--active{color:#92400e;background:#fefce8;border-color:#ca8a04}.me-btn--print{border-color:var(--blue);color:var(--blue)}.me-paper{flex-direction:column;gap:20px;display:flex}.me-section-header{border-bottom:2px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:12px;padding-bottom:8px;display:flex}.me-section-name{color:var(--text-primary);margin:0;font-size:15px;font-weight:700}.me-section-marks{color:var(--text-muted);font-size:13px;font-weight:600}.me-question{border:1px solid var(--border);border-radius:12px;transition:border-color .2s;overflow:hidden}.me-question--expanded{border-color:var(--blue)}.me-q-header{cursor:pointer;background:var(--bg-surface);flex-wrap:wrap;align-items:center;gap:10px;padding:12px 16px;transition:background .2s;display:flex}.me-q-header:hover{background:var(--bg-elevated)}.me-q-num{color:var(--blue);font-size:14px;font-weight:700}.me-q-type{background:var(--blue-light);color:var(--blue);border-radius:10px;padding:2px 8px;font-size:11px;font-weight:600}.me-q-marks{color:var(--text-secondary);margin-left:auto;font-size:13px;font-weight:700}.me-q-toggle{color:var(--text-muted);font-size:11px}.me-q-body{border-top:1px solid var(--border);padding:16px;display:none}.me-q-body--open{display:block}.me-q-text{color:var(--text-primary);white-space:pre-line;margin:0 0 16px;font-size:14px;line-height:1.7}.me-answer-lines{flex-direction:column;gap:6px;margin:8px 0 16px;display:flex}.me-answer-line{border-bottom:1px solid var(--border);height:28px}.me-essay-box{flex-direction:column;gap:6px;margin:8px 0 16px;display:flex}.me-mark-scheme{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;margin-top:12px;padding:14px 16px}.me-ms-label{color:#92400e;margin-bottom:6px;font-size:12px;font-weight:700}.me-ms-answer{color:var(--text-primary);margin:0 0 10px;font-size:13.5px;line-height:1.6}.me-ms-rubric{color:var(--text-secondary);margin:0;font-size:12.5px;font-style:italic;line-height:1.6}.cloze-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px;display:flex}.cloze-title{color:var(--text-primary);margin:0;font-size:17px;font-weight:700}.cloze-toolbar{flex-wrap:wrap;gap:8px;display:flex}.cloze-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:8px;padding:7px 14px;font-size:13px;transition:all .2s}.cloze-btn:hover{border-color:var(--blue);color:var(--blue)}.cloze-btn--active{background:var(--yellow-light);border-color:var(--yellow);color:#92400e}.cloze-btn--check{background:var(--blue);color:#fff;border-color:var(--blue)}.cloze-btn--check:disabled{opacity:.5;cursor:not-allowed}.cloze-btn--reset{color:var(--text-secondary)}.cloze-passage{background:var(--bg);border:1px solid var(--border);border-radius:14px;margin-bottom:16px;padding:24px}.cloze-text{color:var(--text-primary);margin:0;font-size:15px;line-height:2.2}.cloze-blank-wrapper{align-items:center;gap:4px;display:inline-flex;position:relative}.cloze-input{border:none;border-bottom:2px solid var(--blue);color:var(--text-primary);text-align:center;background:0 0;outline:none;padding:2px 4px;font-family:inherit;font-size:15px;transition:border-color .2s}.cloze-input:focus{border-bottom-color:var(--purple)}.cloze-input--correct{border-bottom-color:var(--green);color:#15803d;background:#f0fdf4;border-radius:4px 4px 0 0}.cloze-input--wrong{border-bottom-color:var(--red);color:#b91c1c;background:#fef2f2;border-radius:4px 4px 0 0}.cloze-input--missed{border-bottom-color:var(--orange)}.cloze-blank-num{color:var(--text-muted);font-size:11px}.cloze-hint{color:var(--yellow);background:var(--yellow-light);border-radius:6px;padding:2px 6px;font-size:11px}.cloze-reveal{color:var(--green);font-size:12px;font-weight:600}.cloze-score{border-radius:12px;margin-bottom:16px;padding:14px 18px;font-size:14px;font-weight:600}.cloze-score--perfect{background:var(--green-light);color:#15803d}.cloze-score--good{background:var(--yellow-light);color:#92400e}.cloze-score--retry{color:#b91c1c;background:#fef2f2}.cloze-word-bank{background:var(--bg-elevated);border-radius:12px;flex-wrap:wrap;align-items:center;gap:8px;padding:16px;display:flex}.cloze-bank-label{color:var(--text-secondary);font-size:12px;font-weight:700}.cloze-word{background:var(--bg);border:1px solid var(--border);color:var(--text-primary);border-radius:20px;padding:4px 12px;font-size:13px;transition:all .2s}.cloze-word--used{opacity:.4;text-decoration:line-through}.mm-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}.mm-title{color:var(--text-primary);margin:0 0 4px;font-size:17px;font-weight:700}.mm-description{color:var(--text-secondary);margin:0;font-size:13px}.mm-actions{gap:8px;display:flex}.mm-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;white-space:nowrap;border-radius:8px;padding:7px 14px;font-size:13px;transition:all .2s}.mm-btn:hover{border-color:var(--blue);color:var(--blue)}.mm-legend{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.mm-legend-item{border-radius:10px;padding:4px 10px;font-size:12px;font-weight:600}.mm-legend-item--root{color:var(--accent-purple);background:#ede9fe}.mm-legend-item--topic{background:var(--blue-light);color:var(--blue)}.mm-legend-item--subtopic{color:#0e7490;background:#cffafe}.mm-legend-item--skill{background:var(--green-light);color:#15803d}.mm-tree{background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:20px 20px 20px 12px;overflow-x:auto}.mm-node{flex-direction:column;display:flex;position:relative}.mm-node+.mm-node{margin-top:6px}.mm-node-label{border:1.5px solid var(--border);color:var(--text-primary);background:var(--bg);border-radius:20px;align-items:center;gap:8px;max-width:fit-content;padding:7px 14px;font-size:13.5px;font-weight:500;transition:all .2s;display:inline-flex}.mm-node-label--clickable{cursor:pointer}.mm-node-label--clickable:hover{background:var(--bg-elevated)}.mm-node-label--expanded{font-weight:600}.mm-node-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.mm-expand-icon{color:var(--text-muted);font-size:10px}.mm-children{border-left:2px solid var(--border);flex-direction:column;gap:4px;margin-top:4px;margin-left:14px;padding-left:28px;display:flex}.mm-node--depth-0>.mm-node-label{border-width:2px;font-size:16px;font-weight:700}.mm-node--depth-1>.mm-node-label{font-size:14px;font-weight:600}.mm-node--depth-2>.mm-node-label{font-size:13px}.mm-node--depth-3>.mm-node-label{color:var(--text-secondary);font-size:12px}.sch-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.sch-title{color:var(--text-primary);margin:0 0 6px;font-size:17px;font-weight:700}.sch-meta{color:var(--text-secondary);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:6px;font-size:13px;display:flex}.sch-overview{color:var(--text-secondary);max-width:520px;margin:0;font-size:13.5px;line-height:1.6}.sch-print-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;white-space:nowrap;border-radius:8px;flex-shrink:0;padding:8px 16px;font-size:13px;transition:all .2s}.sch-print-btn:hover{border-color:var(--blue);color:var(--blue)}.sch-progress-row{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px;display:flex}.sch-progress-label{color:var(--text-secondary);white-space:nowrap;font-size:12.5px;font-weight:500}.sch-progress-bar{background:var(--border);border-radius:3px;flex:1;min-width:80px;height:6px;overflow:hidden}.sch-progress-fill{background:linear-gradient(90deg, var(--blue), var(--purple));border-radius:3px;height:100%;transition:width .4s}.sch-progress-pct{color:var(--blue);min-width:32px;font-size:12px;font-weight:700}.sch-persona-tabs{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.sch-persona-tab{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:20px;padding:6px 14px;font-size:12.5px;font-weight:500;transition:all .2s}.sch-persona-tab:hover{border-color:var(--blue);color:var(--blue)}.sch-persona-tab--active{background:var(--blue);color:#fff;border-color:var(--blue)}.sch-diff-panel{background:var(--blue-light);border-radius:12px;margin-bottom:16px;padding:14px 16px}.sch-diff-label{color:var(--blue);margin-bottom:6px;font-size:12px;font-weight:700}.sch-diff-text{color:var(--text-primary);margin:0;font-size:13.5px;line-height:1.6}.sch-timeline{flex-direction:column;gap:8px;margin-bottom:28px;display:flex}.sch-day{background:var(--bg);border:1px solid var(--border);border-radius:12px;align-items:flex-start;gap:14px;padding:14px 16px;transition:all .2s;display:flex}.sch-day--done{background:var(--green-light);border-color:#86efac}.sch-day-check{cursor:pointer;-webkit-user-select:none;user-select:none;flex-shrink:0;padding-top:2px}.sch-check-box{font-size:18px}.sch-day-content{flex:1;min-width:0}.sch-day-header{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:4px;display:flex}.sch-day-time{color:var(--blue);background:var(--blue-light);border-radius:8px;padding:2px 8px;font-size:12px;font-weight:700}.sch-day-duration{color:var(--text-muted);font-size:12px}.sch-day-activity{color:var(--text-primary);margin-bottom:4px;font-size:14px;font-weight:600}.sch-day-resource{color:var(--text-secondary);background:var(--bg-elevated);border-radius:8px;align-items:center;gap:6px;padding:3px 10px;font-size:12.5px;display:inline-flex}.sch-resource-icon{font-size:14px}.sch-persona-note{color:var(--text-muted);margin-top:6px;font-size:12px;font-style:italic;line-height:1.5}.sch-diff-table{margin-top:8px}.sch-diff-table-title{color:var(--text-primary);margin:0 0 14px;font-size:15px;font-weight:700}.sch-diff-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;display:grid}.sch-diff-card{border:1px solid #0000;border-radius:12px;padding:14px 16px}.sch-diff-card--beginner{background:#f0fdf4;border-color:#86efac}.sch-diff-card--on-level{background:var(--blue-light);border-color:#93c5fd}.sch-diff-card--gifted{background:#fdf4ff;border-color:#d8b4fe}.sch-diff-card--sen-support{background:#fffbeb;border-color:#fde68a}.sch-diff-card-title{margin-bottom:8px;font-size:12px;font-weight:700}.sch-diff-card--beginner .sch-diff-card-title{color:#15803d}.sch-diff-card--on-level .sch-diff-card-title{color:var(--blue)}.sch-diff-card--gifted .sch-diff-card-title{color:var(--accent-purple)}.sch-diff-card--sen-support .sch-diff-card-title{color:#92400e}.sch-diff-card-text{color:var(--text-secondary);margin:0;font-size:12.5px;line-height:1.6}@media (width<=640px){.study-hub-panel{padding:20px 16px 24px}.fc-scene{height:200px}.me-header{flex-direction:column}.sch-diff-grid{grid-template-columns:1fr}.flashcard-header{flex-direction:column;align-items:flex-start}}.mm-topic-type,.mm-topic-related{color:var(--blue);font-size:11px;font-weight:700;display:inline-block}.mm-node-label{appearance:none;cursor:pointer;text-align:left;font-family:inherit}.mm-node-label--selected{background:var(--blue-light);box-shadow:0 0 0 2px #4f6ef72e}.mind-map-wrapper{min-width:0}.mm-topic-panel{background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;margin-bottom:16px;padding:14px 16px}.mm-topic-panel h4{color:var(--text-primary);margin:6px 0;font-size:15px}.mm-topic-panel p{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.6}.mm-topic-type,.mm-topic-related{font-size:11px;font-weight:700;display:inline-block}.mm-topic-related{color:var(--text-secondary);margin-top:8px}.mm-graph-scroll{border:1px solid var(--border);background:linear-gradient(#f8fbff 1px, transparent 1px), linear-gradient(90deg, #f8fbff 1px, transparent 1px), var(--bg);background-size:24px 24px;border-radius:8px;overflow-x:auto}.mm-graph-canvas{aspect-ratio:1000/680;min-width:760px;min-height:520px;position:relative}.mm-graph-lines{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.mm-graph-lines line{stroke:#cbd5e1;stroke-width:2.5px;stroke-linecap:round}.mm-graph-node{border:1px solid color-mix(in srgb, var(--node-color) 55%, white);border-left:5px solid var(--node-color);background:var(--bg);width:146px;min-height:54px;color:var(--text-primary);text-align:left;cursor:pointer;z-index:2;border-radius:8px;padding:8px 10px;font-family:inherit;transition:transform .18s,box-shadow .18s,background .18s;position:absolute;transform:translate(-50%,-50%);box-shadow:0 5px 14px #0f172a14}.mm-graph-node:hover,.mm-graph-node--selected{background:color-mix(in srgb, var(--node-color) 8%, white);z-index:4;transform:translate(-50%,-50%)scale(1.04);box-shadow:0 8px 20px #0f172a24}.mm-graph-node-type,.mm-graph-node-count{color:var(--node-color);letter-spacing:0;font-size:10px;font-weight:700;display:block}.mm-graph-node strong{overflow-wrap:anywhere;margin:2px 0;font-size:12.5px;line-height:1.25;display:block}.mm-graph-node-count{color:var(--text-muted);font-size:9.5px;font-weight:600}.mm-graph-node--root{background:var(--node-color);color:#fff;text-align:center;z-index:3;border:0;border-radius:50%;width:184px;min-height:100px;padding:18px 22px;box-shadow:0 12px 24px #4f46e542}.mm-graph-node--root .mm-graph-node-type,.mm-graph-node--root .mm-graph-node-count{color:#e0e7ff}.mm-graph-node--root strong{font-size:17px;line-height:1.2}.mm-graph-node--detail{width:138px;min-height:50px}@media (width<=640px){.mm-graph-canvas{min-width:720px;min-height:490px}.mm-graph-node--root{width:164px;min-height:88px}.mm-graph-node--root strong{font-size:15px}}.mm-learning-panel{background:#f8fbff;border:1px solid #bfdbfe;border-radius:8px;margin-bottom:16px;padding:16px}.mm-learning-heading h4{color:var(--text-primary);margin:5px 0;font-size:17px}.mm-learning-heading p{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.6}.mm-learning-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px;display:grid}.mm-learning-grid>div{border-left:3px solid var(--blue);background:var(--bg);min-width:0;padding:8px 10px}.mm-learning-grid span{color:var(--blue);font-size:11px;font-weight:700}.mm-learning-grid p{color:var(--text-secondary);overflow-wrap:anywhere;margin:4px 0 0;font-size:12.5px;line-height:1.5}.mm-master-btn{border:1px solid var(--blue);background:var(--blue);color:#fff;cursor:pointer;font:inherit;border-radius:6px;margin-top:14px;padding:7px 12px;font-size:12.5px;font-weight:700}.mm-master-btn--done{background:#15803d;border-color:#15803d}.mm-graph-canvas{aspect-ratio:3/2;min-width:920px;min-height:610px}.mm-graph-node{width:138px;min-height:50px}.mm-graph-node--strand{width:156px;min-height:62px}.mm-graph-node--concept{width:146px;min-height:54px}.mm-graph-node--skill{width:126px;min-height:46px}.mm-graph-node--mastered{border-left-color:#15803d}.mm-graph-node--mastered .mm-graph-node-type{color:#15803d}.mm-graph-node--root{width:188px;min-height:104px}@media (width<=640px){.mm-learning-grid{grid-template-columns:1fr}.mm-graph-canvas{min-width:860px;min-height:575px}}.mm-atlas-overview{border:1px solid var(--border);background:var(--bg);border-radius:8px;grid-template-columns:minmax(190px,.8fr) 42px minmax(0,2.2fr);align-items:center;gap:0;min-height:220px;margin-bottom:18px;padding:18px;display:grid}.mm-atlas-root{color:#fff;cursor:pointer;text-align:center;background:#4338ca;border:0;border-radius:50%;min-height:158px;padding:22px;font-family:inherit;box-shadow:0 10px 24px #4338ca33}.mm-atlas-root span,.mm-atlas-root small{color:#e0e7ff;font-size:11px;font-weight:700;display:block}.mm-atlas-root strong{overflow-wrap:anywhere;margin:7px 0;font-size:18px;line-height:1.2;display:block}.mm-atlas-connector{background:#cbd5e1;height:2px;position:relative}.mm-atlas-connector:after{content:"";border-top:2px solid #94a3b8;border-right:2px solid #94a3b8;width:8px;height:8px;position:absolute;top:-4px;right:-1px;transform:rotate(45deg)}.mm-atlas-branches{grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:10px;padding-left:18px;display:grid}.mm-atlas-branch{border:1px solid var(--border);background:var(--bg);min-height:84px;color:var(--text-primary);cursor:pointer;text-align:left;border-left:5px solid #0f766e;border-radius:7px;padding:10px 12px;font-family:inherit;transition:border-color .18s,box-shadow .18s,transform .18s}.mm-atlas-branch:hover,.mm-atlas-branch--active{border-color:#0f766e;transform:translateY(-2px);box-shadow:0 5px 14px #0f766e21}.mm-atlas-branch--1{border-left-color:#0284c7}.mm-atlas-branch--2{border-left-color:#c2410c}.mm-atlas-branch--3{border-left-color:#7c3aed}.mm-atlas-branch--4{border-left-color:#b45309}.mm-atlas-branch span,.mm-atlas-branch small{color:var(--text-muted);font-size:10.5px;font-weight:700;display:block}.mm-atlas-branch strong{overflow-wrap:anywhere;margin:5px 0;font-size:13px;line-height:1.25;display:block}.mm-pathway{border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:18px;padding:18px 0}.mm-pathway-heading{margin-bottom:16px}.mm-pathway-heading span,.mm-practice-label span{color:var(--blue);font-size:11px;font-weight:700}.mm-pathway-heading h4{color:var(--text-primary);margin:4px 0;font-size:17px}.mm-pathway-heading p{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.6}.mm-concept-rail{align-items:stretch;padding:3px 0 12px;display:flex;overflow-x:auto}.mm-concept-step{flex:none;align-items:center;display:flex}.mm-concept-node{border:1px solid var(--border);background:var(--bg);width:150px;min-height:86px;color:var(--text-primary);cursor:pointer;text-align:left;border-top:4px solid #0284c7;border-radius:7px;padding:10px;font-family:inherit;transition:all .18s}.mm-concept-node:hover,.mm-concept-node--active{background:#f0f9ff;border-color:#0284c7;box-shadow:0 5px 14px #0284c721}.mm-concept-node--mastered{border-top-color:#15803d}.mm-concept-node span{color:#0284c7;font-size:10px;font-weight:800;display:block}.mm-concept-node strong{overflow-wrap:anywhere;margin-top:5px;font-size:13px;line-height:1.25;display:block}.mm-concept-link{background:#cbd5e1;width:40px;height:2px;position:relative}.mm-concept-link:after{content:"";border-top:2px solid #94a3b8;border-right:2px solid #94a3b8;width:7px;height:7px;position:absolute;top:-3px;right:0;transform:rotate(45deg)}.mm-practice-row{grid-template-columns:160px minmax(0,1fr);align-items:start;gap:14px;margin-top:6px;display:grid}.mm-practice-label strong{color:var(--text-primary);margin-top:4px;font-size:13px;line-height:1.35;display:block}.mm-practice-skills{flex-wrap:wrap;gap:8px;display:flex}.mm-practice-skill{color:#9a3412;cursor:pointer;text-align:left;background:#fff7ed;border:1px solid #fed7aa;border-radius:999px;padding:7px 11px;font-family:inherit;font-size:12.5px}.mm-practice-skill:hover,.mm-practice-skill--active{background:#ffedd5;border-color:#c2410c}.mm-practice-skill--mastered{color:#15803d;background:#f0fdf4;border-color:#86efac}@media (width<=720px){.mm-atlas-overview{grid-template-columns:1fr;gap:14px}.mm-atlas-root{justify-self:center;width:min(220px,100%)}.mm-atlas-connector{justify-self:center;width:2px;height:26px}.mm-atlas-connector:after{top:auto;bottom:-1px;right:-4px;transform:rotate(135deg)}.mm-atlas-branches{grid-template-columns:repeat(2,minmax(0,1fr));padding-left:0}.mm-practice-row{grid-template-columns:1fr}}