@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap";:root{--bg-primary:#f5f2eb;--bg-secondary:#fff;--bg-tertiary:#ebe7de;--bg-card:#fff;--bg-card-hover:#f8f6f1;--bg-glass:#ffffffd9;--bg-input:#f8f6f1;--text-primary:#1c1c1c;--text-secondary:#4a4a4a;--text-muted:#7a7a7a;--text-inverse:#f5f2eb;--color-primary:#5b8c3e;--color-primary-light:#7bb344;--color-primary-dark:#3d6128;--color-primary-glow:#5b8c3e14;--color-success:#00745b;--color-success-light:#10b981;--color-success-glow:#00745b14;--color-accent:#6b4c9a;--color-accent-light:#8b6faf;--color-accent-glow:#6b4c9a14;--color-warning:#c68a23;--color-warning-light:#d99b26;--color-warning-glow:#c68a2314;--color-danger:#c41e3d;--color-danger-light:#e53e5c;--color-danger-glow:#c41e3d14;--color-info:#1f8a99;--color-info-light:#33a6b8;--border-subtle:#1c1c1c1f;--border-default:#1c1c1c38;--border-active:#5b8c3e80;--font-body:"Inter", -apple-system, 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1);--navbar-height:4rem;--sidebar-width:280px;--max-content-width:1200px;--z-base:1;--z-card:10;--z-sidebar:100;--z-navbar:200;--z-modal:300;--z-tooltip:400}[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--bg-card:#1e293bbf;--bg-card-hover:#334155a6;--bg-glass:#0f172ab3;--bg-input:#1e293b99;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--text-inverse:#0f172a;--color-primary:#3b82f6;--color-primary-light:#60a5fa;--color-primary-dark:#2563eb;--color-primary-glow:#3b82f62e;--color-success:#10b981;--color-success-light:#34d399;--color-success-glow:#10b9812e;--color-accent:#8b5cf6;--color-accent-light:#a78bfa;--color-accent-glow:#8b5cf62e;--color-warning:#f59e0b;--color-warning-light:#fbbf24;--color-warning-glow:#f59e0b2e;--color-danger:#ef4444;--color-danger-light:#f87171;--color-danger-glow:#ef44442e;--color-info:#06b6d4;--color-info-light:#22d3ee;--border-subtle:#94a3b81f;--border-default:#94a3b838;--border-active:#3b82f680;--shadow-sm:0 1px 2px #0006;--shadow-md:0 4px 6px -1px #0006, 0 2px 4px -2px #0000004d;--shadow-lg:0 10px 15px -3px #0006, 0 4px 6px -4px #0000004d;--shadow-xl:0 20px 25px -5px #0006, 0 8px 10px -6px #0000004d}@keyframes fadeIn{0%{opacity:0;transform:translateY(-2px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 5px #3b82f64d}50%{box-shadow:0 0 20px #3b82f699}}@keyframes shimmer{0%{background-position:-200% 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1.5rem;display:flex}.sm-search-icon{color:var(--color-primary);flex-shrink:0}.sm-input{width:100%;color:var(--text-primary);font-size:var(--text-lg);font-weight:500;font-family:var(--font-body);background:0 0;border:none;outline:none}.sm-input::placeholder{color:var(--text-muted);font-size:var(--text-base)}.sm-clear-btn{background:var(--bg-tertiary);border:1px solid var(--border-subtle);color:var(--text-muted);cursor:pointer;width:24px;height:24px;transition:all var(--transition-fast);border-radius:50%;justify-content:center;align-items:center;display:flex}.sm-clear-btn:hover{color:var(--text-primary)}.sm-close-btn{background:var(--bg-tertiary);border:1px solid var(--border-subtle);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:var(--text-xs);font-weight:700;font-family:var(--font-code);cursor:pointer;transition:all var(--transition-fast);padding:.2rem 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h3{font-size:var(--text-base);color:var(--text-primary)}.topic-header-right{align-items:center;gap:var(--space-3);color:var(--text-muted);display:flex}.mark-complete-btn{color:var(--text-muted);cursor:pointer;padding:var(--space-1);border-radius:var(--radius-sm);transition:all var(--transition-fast);opacity:.5;background:0 0;border:none}.mark-complete-btn:hover{opacity:1;color:var(--color-success)}.mark-complete-btn.done{color:var(--color-success);opacity:1}.topic-body{padding:0 var(--space-5) var(--space-5);border-top:1px solid var(--border-subtle);overflow:hidden}.content-block{margin-top:var(--space-4)}.content-block p{font-size:var(--text-sm);line-height:1.8}.content-block h4{font-size:var(--text-base);margin-bottom:var(--space-2);color:var(--text-primary)}.content-list{padding-left:var(--space-5);margin:var(--space-2) 0}.content-list li{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-1);line-height:1.7}.callout{gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-lg);margin:var(--space-4) 0;display:flex}.callout-icon{flex-shrink:0;margin-top:2px}.callout strong{font-size:var(--text-sm);margin-bottom:var(--space-1);display:block}.callout p{font-size:var(--text-sm)!important}.callout-trap{background:var(--color-danger-glow);border-left:3px solid var(--color-danger)}.callout-trap .callout-icon,.callout-trap strong{color:var(--color-danger)}.callout-insight{background:var(--color-primary-glow);border-left:3px solid var(--color-primary)}.callout-insight .callout-icon,.callout-insight strong{color:var(--color-primary)}.essential-knowledge{margin-top:var(--space-6);padding:var(--space-4);background:var(--bg-tertiary);border-radius:var(--radius-lg)}.essential-knowledge h4{font-size:var(--text-sm);margin-bottom:var(--space-3)}.essential-knowledge ul{padding-left:var(--space-5)}.essential-knowledge li{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-2);line-height:1.7}.essential-knowledge code{font-size:var(--text-xs);margin-right:var(--space-2);padding:1px 6px}@media (width<=1024px){.bi-select-grid{grid-template-columns:1fr}.concept-sidebar{display:none}.concept-detail-page{flex-direction:column}.concept-content{padding:var(--space-4)}}.tracer-grid{gap:var(--space-4);grid-template-columns:repeat(3,1fr);display:grid}.tracer-card{padding:var(--space-5);cursor:pointer;text-align:left;font-family:var(--font-body);transition:all 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#ffffff26;border-radius:12px;justify-content:space-between;align-items:center;padding:1rem 1.5rem;transition:all .25s;display:flex}.tier-level-6{width:60%;margin:0 auto}.tier-level-5{width:68%;margin:0 auto}.tier-level-4{width:76%;margin:0 auto}.tier-level-3{width:84%;margin:0 auto}.tier-level-2{width:92%;margin:0 auto}.tier-level-1{width:100%;margin:0 auto}.avg-pyramid-tier.active{border-color:#fff;transform:scale(1.02)}.avg-tier-content{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.avg-tier-badge{background:#0000004d;border-radius:6px;padding:.25rem .6rem;font-size:.9rem;font-weight:800}.avg-tier-name{letter-spacing:.05em;font-size:1.1rem;font-weight:800}.avg-tier-sub{opacity:.9;font-size:.85rem}.avg-tier-count{background:#00000040;border-radius:20px;padding:.3rem 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print{.no-print,.navbar,.projects-sidebar,.projects-tabs,.projects-actions-bar,.copied-btn{display:none!important}body,html,#root,.projects-detail-layout,.projects-main{color:#000!important;background:#fff!important;width:100%!important;margin:0!important;padding:0!important}.print-only{display:block!important}.tab-content{visibility:visible!important;margin-bottom:2.5rem!important;display:block!important}}.binary-lab-container{padding-bottom:var(--space-12)}.lab-tabs{gap:var(--space-2);margin-bottom:var(--space-6);border-bottom:1px solid var(--border-subtle);padding-bottom:1px;display:flex;overflow-x:auto}.lab-tab-btn{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);color:var(--text-secondary);font-weight:600;font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;background:0 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h3{font-size:var(--text-md);color:var(--text-primary);margin-bottom:var(--space-3);font-weight:700}.game-canvas-preview{background:var(--bg-primary);border:2px solid var(--bg-secondary);border-radius:var(--radius-xl);height:240px;box-shadow:var(--shadow-md);position:relative;overflow:hidden}.canvas-hud{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:var(--radius-lg);padding:var(--space-2) var(--space-4);align-items:center;gap:var(--space-3);font-size:var(--text-xs);color:#fff;z-index:5;background:#0f172acc;font-weight:700;display:flex;position:absolute;top:12px;left:12px;right:12px}.hp-bar-outer{background:var(--bg-tertiary);border-radius:var(--radius-full);width:120px;height:8px;overflow:hidden}.hp-bar-inner{background:var(--color-danger);height:100%;transition:width var(--transition-base)}.player-sprite-node{transition:all var(--transition-base);flex-direction:column;align-items:center;gap:4px;display:flex;position:absolute}.sprite-avatar{border-radius:var(--radius-md);background:var(--color-info-light);width:44px;height:44px;transition:all var(--transition-fast);border:2px solid #fff;justify-content:center;align-items:center;display:flex;box-shadow:0 0 15px #38bdf880}.sprite-avatar.action-0{background:var(--color-info-light)}.sprite-avatar.action-1{background:var(--color-success);transform:scale(1.1)}.sprite-avatar.action-2{background:var(--color-danger);transform:scale(1.2)rotate(15deg)}.sprite-avatar.action-3{border-color:var(--color-warning);background:#c084fc}.sprite-id{color:var(--bg-primary);font-size:11px;font-weight:800}.sprite-action-label{color:#fff;border-radius:var(--radius-full);white-space:nowrap;background:#000000b3;padding:2px 6px;font-size:10px;font-weight:700}.custom-fields-builder{gap:var(--space-2);flex-direction:column;display:flex}.field-config-row{background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-left:4px solid var(--color-info-light);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);justify-content:space-between;align-items:center;gap:var(--space-4);display:flex}.field-name-input{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--space-1) var(--space-3);color:var(--text-primary);font-size:var(--text-xs);outline:none;font-weight:700}.field-width-select{align-items:center;gap:var(--space-2);font-size:var(--text-xs);color:var(--text-muted);display:flex}.field-width-select select{background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-primary);border-radius:var(--radius-md);font-size:var(--text-xs);padding:2px 6px}.btn-icon{cursor:pointer;background:0 0;border:none;padding:4px}@media (width<=768px){.card-header{flex-direction:column}.raw-bit-node{width:16px;height:24px;font-size:10px}}.access-gate-container{padding:var(--space-4);z-index:99999;font-family:var(--font-sans);background:#090d16;justify-content:center;align-items:center;display:flex;position:fixed;inset:0;overflow:hidden}.gate-background-effects{z-index:0;pointer-events:none;position:absolute;inset:0}.gate-glow-circle{filter:blur(140px);opacity:.18;border-radius:50%;position:absolute}.circle-1{background:var(--color-primary);width:400px;height:400px;top:15%;left:20%}.circle-2{background:var(--color-accent);width:350px;height:350px;bottom:20%;right:25%}.access-card{width:100%;max-width:440px;padding:var(--space-8) var(--space-6);text-align:center;z-index:10;-webkit-backdrop-filter:blur(24px);background:#0f172a73;border:1px solid #ffffff14;border-radius:24px;position:relative;box-shadow:0 25px 50px -12px #00000080}.card-header-icon{border-radius:var(--radius-xl);width:72px;height:72px;margin:0 auto var(--space-6) auto;background:#f59e0b14;border:1px solid #f59e0b33;justify-content:center;align-items:center;display:flex}.lock-icon{color:var(--color-warning);filter:drop-shadow(0 0 10px #f59e0b4d)}.access-card h2{color:var(--text-primary);margin-bottom:var(--space-3);letter-spacing:-.02em;font-size:1.5rem;font-weight:800}.card-description{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-6);padding:0 var(--space-2);line-height:1.6}.gate-form{gap:var(--space-4);flex-direction:column;display:flex}.input-group{position:relative}.passcode-input{width:100%;padding:var(--space-3) var(--space-4);color:var(--text-primary);text-align:center;transition:all var(--transition-fast);letter-spacing:.08em;touch-action:manipulation;-webkit-user-select:text;user-select:text;-webkit-appearance:none;background:#ffffff0d;border:1px solid #ffffff26;border-radius:12px;outline:none;font-size:16px!important}.passcode-input:focus{border-color:var(--color-primary-light);background:#ffffff0d;box-shadow:0 0 0 3px #38bdf826}.gate-submit-btn{justify-content:center;align-items:center;gap:var(--space-2);width:100%;padding:var(--space-3);font-weight:600;font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast);border:none;border-radius:12px;display:flex}.error-message{font-size:var(--text-xs);color:var(--color-danger);text-align:center;margin-top:-2px;font-weight:500;animation:.2s ease-out fadeIn}.card-footer-tip{font-size:var(--text-2xs);color:var(--text-muted);margin-top:var(--space-6);padding-top:var(--space-4);border-top:1px solid #ffffff0d}.shake-animation{animation:.4s ease-in-out shake}@media (width<=480px){.access-card{padding:var(--space-6) var(--space-4)}}.note-reader-layout{z-index:1;min-height:calc(100vh - 70px);display:flex;position:relative}.mobile-topic-selector-bar{display:none}.note-sidebar{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);border-right:1px solid var(--border-subtle);width:320px;padding:var(--space-6) var(--space-3);gap:var(--space-4);flex-direction:column;flex-shrink:0;height:calc(100vh - 70px);display:flex;position:sticky;top:70px;overflow-y:auto}.sidebar-header{align-items:center;gap:var(--space-3);padding-left:var(--space-2);margin-bottom:var(--space-2);display:flex}.sidebar-header h4{font-size:var(--text-xs);color:var(--text-primary);text-transform:uppercase;letter-spacing:.05em;font-weight:800;line-height:1.2}.sidebar-subtitle{color:var(--text-muted);font-size:11px}.sidebar-topic-list{gap:var(--space-4);flex-direction:column;display:flex}.big-idea-group{flex-direction:column;gap:3px;display:flex}.group-title{color:var(--color-primary-light);text-transform:uppercase;letter-spacing:.05em;padding:var(--space-1) var(--space-2);border-bottom:1px dashed var(--border-subtle);margin-bottom:4px;font-size:11px;font-weight:800}.sidebar-topic-btn{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--text-secondary);font-size:var(--text-xs);transition:all var(--transition-fast);border:1px solid #0000;justify-content:space-between;align-items:center;text-decoration:none;display:flex}.sidebar-topic-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.sidebar-topic-btn.active{color:var(--color-success);background:#10b98126;border-color:#10b9814d;font-weight:700}.topic-btn-left{align-items:center;gap:var(--space-2);display:flex;overflow:hidden}.topic-num{font-family:var(--font-code);color:var(--color-primary-light);flex-shrink:0;font-size:11px;font-weight:800}.topic-title{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.finished-check{color:var(--color-success);flex-shrink:0}.note-main-content{padding:var(--space-6) var(--space-8);flex-grow:1;width:100%;max-width:920px;margin:0 auto}.reader-top-bar{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.top-bar-left{gap:var(--space-2);flex-direction:column;display:flex}.btn-back{align-items:center;gap:var(--space-1);color:var(--text-muted);font-size:var(--text-xs);transition:color var(--transition-fast);text-decoration:none;display:inline-flex}.btn-back:hover{color:var(--color-primary-light)}.topic-meta-pills{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.pill{font-size:var(--text-2xs);border-radius:var(--radius-full);align-items:center;gap:4px;padding:3px 10px;font-weight:700;display:inline-flex}.pill-emerald{color:var(--color-success);background:#10b98126}.pill-time{color:var(--color-warning);background:#f59e0b26}.pill-chunks{color:#c084fc;background:#c084fc26}.btn-complete{align-items:center;gap:var(--space-2);background:var(--bg-tertiary);border:1px solid var(--border-subtle);color:var(--text-secondary);font-size:var(--text-xs);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);font-weight:700;display:inline-flex}.btn-complete:hover{border-color:var(--color-success);color:var(--text-primary)}.btn-complete.completed{color:var(--color-success);background:#10b98126;border-color:#10b9814d}.note-article-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-sm);margin-bottom:var(--space-8)}.note-h1{font-size:var(--text-2xl);color:var(--text-primary);margin-bottom:var(--space-6);letter-spacing:-.02em;border-bottom:1px solid var(--border-subtle);padding-bottom:var(--space-4);font-weight:800}.chunk-header-banner{align-items:center;gap:var(--space-2);color:var(--color-success);padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);font-weight:800;font-size:var(--text-sm);margin:var(--space-8) 0 var(--space-6) 0;letter-spacing:.05em;text-transform:uppercase;background:#10b9811a;border:1px solid #10b98140;display:flex}.note-h2{font-size:var(--text-xl);color:var(--text-primary);margin:var(--space-6) 0 var(--space-3) 0;font-weight:800}.note-h3{font-size:var(--text-md);color:var(--color-success);margin:var(--space-4) 0 var(--space-2) 0;font-weight:700}.note-h4{font-size:var(--text-sm);color:var(--text-primary);margin:var(--space-3) 0 var(--space-1) 0;font-weight:700}.note-p{font-size:var(--text-base);color:var(--text-secondary);margin-bottom:var(--space-4);line-height:1.7}.note-bullet{font-size:var(--text-base);color:var(--text-secondary);margin-bottom:var(--space-2);margin-left:var(--space-6);line-height:1.6;list-style-type:disc}.note-code-wrapper{margin:var(--space-4) 0 var(--space-6) 0;border-radius:var(--radius-lg);border:1px solid var(--border-subtle);overflow:hidden}.mobile-code-hint{display:none}.callout-badge{align-items:center;gap:var(--space-2);border-radius:var(--radius-full);font-size:var(--text-xs);margin-bottom:var(--space-3);padding:4px 12px;font-weight:800;display:inline-flex}.callout-badge.important{color:var(--color-info-light);background:#38bdf826}.callout-badge.warning{color:var(--color-danger);background:#ef444426}.callout-badge.tip{color:var(--color-success);background:#10b98126}.table-responsive{-webkit-overflow-scrolling:touch;width:100%;overflow-x:auto}.modern-note-table{border-collapse:collapse;text-align:left;width:100%;font-size:var(--text-sm)}.modern-note-table th{background:var(--bg-tertiary);border-bottom:2px solid var(--border-subtle);padding:var(--space-3) var(--space-4);color:var(--text-primary);font-weight:700;font-size:var(--text-xs);text-transform:uppercase}.modern-note-table td{border-bottom:1px solid var(--border-subtle);padding:var(--space-3) var(--space-4);color:var(--text-secondary)}.cfu-section-title{align-items:center;gap:var(--space-2);color:var(--color-success);margin:var(--space-6) 0 var(--space-3) 0;border-top:1px dashed var(--border-subtle);padding-top:var(--space-6);display:flex}.cfu-section-title h3{font-size:var(--text-md);margin-bottom:0;font-weight:800}.cfu-answer-accordion{background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);margin-bottom:var(--space-6);overflow:hidden}.cfu-toggle-btn{width:100%;padding:var(--space-3) var(--space-4);color:var(--text-primary);font-weight:700;font-size:var(--text-sm);cursor:pointer;transition:background var(--transition-fast);background:0 0;border:none;justify-content:space-between;align-items:center;display:flex}.cfu-toggle-btn:hover{background:var(--bg-card)}.btn-left{align-items:center;gap:var(--space-2);color:var(--color-warning);display:flex}.toggle-badge{font-size:var(--text-xs);color:var(--color-success);font-weight:600}.cfu-explanation-body{padding:var(--space-4);background:var(--bg-card);border-top:1px solid var(--border-subtle);font-size:var(--text-sm);color:var(--text-secondary);line-height:1.6}.reader-footer-nav{justify-content:space-between;gap:var(--space-4);display:flex}.nav-btn{align-items:center;gap:var(--space-3);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-4);color:var(--text-primary);transition:all var(--transition-fast);width:100%;max-width:320px;text-decoration:none;display:flex}.nav-btn:hover{border-color:var(--color-success);transform:translateY(-2px)}.btn-text{flex-direction:column;display:flex}.nav-dir{color:var(--text-muted);text-transform:uppercase;font-size:10px;font-weight:700}.nav-title{font-size:var(--text-xs);color:var(--color-success);white-space:nowrap;text-overflow:ellipsis;font-weight:700;overflow:hidden}@media (width<=768px){.note-reader-layout{flex-direction:column}.desktop-only-sidebar{display:none!important}.mobile-topic-selector-bar{z-index:100;background:var(--bg-primary);border-bottom:1px solid #ffffff1a;width:100%;padding:10px 14px;display:flex;position:sticky;top:70px}.mobile-topic-trigger{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:#1e293bcc;border:1px solid #ffffff26;border-radius:12px;justify-content:space-between;align-items:center;padding:10px 14px;font-size:14px;font-weight:600;display:flex}.trigger-left{align-items:center;gap:8px;display:flex;overflow:hidden}.trigger-label{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.trigger-chevron{flex-shrink:0;transition:transform .2s}.trigger-chevron.open{transform:rotate(180deg)}.mobile-drawer-overlay{-webkit-backdrop-filter:blur(8px);z-index:99999;background:#000000bf;align-items:flex-end;display:flex;position:fixed;inset:0}.mobile-drawer-sheet{background:#0b0f19;border-top:1px solid #ffffff26;border-radius:20px 20px 0 0;flex-direction:column;width:100%;max-height:80vh;padding:20px;display:flex;box-shadow:0 -10px 30px #00000080}.drawer-header{border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;display:flex}.drawer-header h3{color:var(--text-primary);font-size:16px;font-weight:800}.drawer-close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px}.drawer-body{flex-direction:column;gap:16px;display:flex;overflow-y:auto}.note-main-content{max-width:100%;padding:12px 14px}.reader-top-bar{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:16px}.topic-meta-pills{gap:6px}.pill{padding:3px 8px;font-size:10px}.btn-complete{justify-content:center;width:100%;min-height:44px;padding:10px;font-size:13px}.note-article-card{box-shadow:none;background:#0f172ab3;border:1px solid #ffffff14;border-radius:16px;margin-bottom:20px;padding:16px 14px}.note-h1{margin-bottom:14px;padding-bottom:10px;font-size:1.35rem;line-height:1.3}.chunk-header-banner{border-radius:10px;margin:20px 0 14px;padding:10px 12px;font-size:12px}.note-h2{margin:18px 0 10px;font-size:1.15rem}.note-h3{margin:14px 0 8px;font-size:1rem}.note-h4{font-size:.9rem}.note-p{color:var(--text-secondary);margin-bottom:14px;font-size:15px;line-height:1.65}.note-bullet{color:var(--text-secondary);margin-bottom:8px;margin-left:18px;font-size:15px;line-height:1.6}.mobile-code-hint{color:var(--text-muted);margin-bottom:6px;font-size:11px;font-style:italic;font-weight:500;display:block}.note-code-wrapper{border-radius:12px;margin:12px 0 16px;font-size:13px}.cfu-section-title{margin:24px 0 12px;padding-top:16px}.cfu-section-title h3{font-size:1rem}.cfu-answer-accordion{border-radius:12px;margin-bottom:16px}.cfu-toggle-btn{flex-direction:column;align-items:flex-start;gap:6px;min-height:48px;padding:12px 14px}.btn-left{font-size:13px}.toggle-badge{align-self:flex-end;font-size:11px}.cfu-explanation-body{padding:12px 14px;font-size:14px}.reader-footer-nav{flex-direction:column;gap:10px}.nav-btn{width:100%;max-width:100%;min-height:52px;padding:12px 14px}}.classroom-os-explorer{flex-direction:column;gap:1.5rem;margin:1.5rem 0 3rem;font-family:inherit;display:flex}.os-header-card{background:var(--bg-card,var(--bg-secondary));border:1px solid var(--border-color,#ffffff1a);border-radius:16px;padding:2rem;position:relative;overflow:hidden}.os-header-card:before{content:"";background:linear-gradient(90deg, var(--color-primary), var(--color-success), var(--color-accent));height:4px;position:absolute;top:0;left:0;right:0}.os-header-badge{color:var(--color-primary-light);background:#3b82f626;border:1px solid #3b82f64d;border-radius:20px;align-items:center;gap:8px;margin-bottom:1rem;padding:6px 14px;font-size:.85rem;font-weight:600;display:inline-flex}.os-header-card h2{color:var(--text-primary,var(--text-primary));margin-bottom:.5rem;font-size:1.8rem;font-weight:800}.os-header-sub{color:var(--text-secondary,var(--text-muted));max-width:750px;margin-bottom:1.5rem;font-size:1rem;line-height:1.6}.os-view-tabs{flex-wrap:wrap;gap:10px;display:flex}.os-tab-btn{background:var(--bg-tertiary);border:1px solid var(--border-default);color:var(--text-secondary);cursor:pointer;border-radius:10px;align-items:center;gap:8px;padding:10px 18px;font-size:.9rem;font-weight:600;transition:all .2s;display:flex}.os-tab-btn:hover{background:var(--bg-card-hover);color:var(--text-primary)}.os-tab-btn.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff;box-shadow:0 4px 12px var(--color-primary-glow)}.day-type-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;display:grid}.day-card{background:var(--bg-card);border:2px solid var(--border-default);cursor:pointer;border-radius:14px;flex-direction:column;gap:10px;padding:1.5rem;transition:all .25s;display:flex;position:relative}.day-card:hover{border-color:var(--card-accent,var(--color-primary));transform:translateY(-3px)}.day-card.selected{border-color:var(--card-accent,var(--color-primary));background:var(--bg-card);box-shadow:var(--shadow-md), inset 0 0 0 1px var(--card-accent,var(--color-primary))}.day-card-badge{text-transform:uppercase;letter-spacing:.05em;background:var(--bg-tertiary);color:var(--text-secondary);border-radius:6px;align-self:flex-start;padding:4px 10px;font-size:.75rem;font-weight:700}.day-card-header{align-items:center;gap:12px;display:flex}.day-icon-box{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;display:flex;box-shadow:0 4px 10px #0003}.day-card-header h3{color:var(--text-primary,var(--text-primary));margin:0;font-size:1.15rem;font-weight:700}.day-card p{color:var(--text-secondary,var(--text-muted));margin:0;font-size:.88rem;line-height:1.5}.mode-switcher-container{background:var(--bg-card,var(--bg-secondary));border:1px solid var(--border-color,#ffffff1f);border-radius:14px;flex-direction:column;gap:1rem;padding:1.5rem;display:flex}.mode-switcher-title{color:var(--text-primary,var(--text-primary));align-items:center;gap:8px;font-size:1rem;font-weight:700;display:flex}.sparkle-icon{color:var(--color-warning)}.mode-btn-group{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;display:grid}.mode-btn{cursor:pointer;text-align:left;background:#ffffff0a;border:2px solid #ffffff14;border-radius:12px;align-items:center;gap:12px;padding:14px;transition:all .2s;display:flex}.mode-btn:hover{background:#ffffff14}.mode-btn.csa-btn.active{border-color:var(--color-warning);background:#f59e0b1f}.mode-btn.csp-concept-btn.active{border-color:var(--color-success);background:#10b9811f}.mode-btn.csp-prog-btn.active{border-color:var(--color-primary);background:#3b82f61f}.mode-emoji{font-size:1.5rem}.mode-btn-text strong{color:var(--text-primary,var(--text-primary));font-size:.95rem;display:block}.mode-btn-text small{color:var(--text-secondary,var(--text-muted));font-size:.78rem}.mode-description-banner{background:var(--bg-tertiary);border:1px solid var(--border-subtle);color:var(--text-secondary);border-radius:8px;padding:12px 16px;font-size:.9rem;line-height:1.5}.timeline-visualizer-card{background:var(--bg-card);border:1px solid var(--border-default);box-shadow:var(--shadow-sm);border-radius:16px;flex-direction:column;gap:1.5rem;padding:1.75rem;display:flex}.timeline-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.timeline-day-label{text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;font-weight:700}.timeline-header h3{color:var(--text-primary);margin-top:4px;font-size:1.4rem;font-weight:800}.segment-counter{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-subtle);border-radius:20px;padding:6px 12px;font-size:.82rem;font-weight:600}.timeline-bar{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;display:grid}.timeline-segment{background:var(--bg-tertiary);border:2px solid var(--border-subtle);cursor:pointer;text-align:center;border-radius:10px;padding:12px 10px;transition:all .2s;position:relative}.timeline-segment:hover{background:var(--bg-card-hover)}.timeline-segment.active{border-color:var(--seg-color,var(--color-primary));background:var(--color-primary-glow)}.seg-time{color:var(--seg-color,var(--color-primary));margin-bottom:4px;font-size:.78rem;font-weight:700}.seg-label{color:var(--text-primary);font-size:.85rem;font-weight:600}.active-indicator{background:var(--seg-color,var(--color-primary));border-radius:3px 3px 0 0;width:12px;height:6px;position:absolute;bottom:-6px;left:50%;transform:translate(-50%)}.segment-detail-card{background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:12px;flex-direction:column;gap:1.25rem;padding:1.5rem;display:flex}.segment-time-badge{color:#fff;border-radius:20px;align-items:center;gap:6px;padding:6px 14px;font-size:.85rem;font-weight:700;display:inline-flex}.segment-main-info 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.note-runner-body{background:#1e293b}.note-runner-body.vertical-layout{flex-direction:column}.note-runner-body.split-layout{border-bottom:1px solid var(--border-color,#ffffff14);grid-template-columns:1.15fr .85fr;display:grid}@media (width<=840px){.note-runner-body.split-layout{grid-template-columns:1fr}}.note-editor-panel{min-height:80px;display:flex;position:relative;overflow:hidden}.editor-line-numbers{-webkit-user-select:none;user-select:none;text-align:right;background:#0003;border-right:1px solid #ffffff0f;flex-direction:column;min-width:2.25rem;padding:.75rem .5rem .75rem .75rem;display:flex}.editor-line-numbers span{font-family:var(--font-code,"Fira Code", monospace);color:#475569;font-size:.8125rem;line-height:21px}.note-code-textarea{color:#f8fafc;font-family:var(--font-code,"Fira Code", monospace);tab-size:2;resize:vertical;white-space:pre;background:0 0;border:none;outline:none;flex:1;padding:.75rem 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.3rem}.console-line{word-break:break-word;align-items:flex-start;gap:.4rem;line-height:1.4;display:flex}.console-line-content{white-space:pre-wrap;font-family:inherit;font-size:inherit;margin:0}.console-line.line-log{color:#e2e8f0}[data-theme=light] .console-line.line-log{color:#0f172a}.console-line.line-info{color:#38bdf8}.console-line.line-warn{color:#fbbf24}.console-line.line-error{color:#f87171}.line-icon{flex-shrink:0;margin-top:2px}.runner-footer-hint{color:#64748b;background:#0003;border-top:1px solid #ffffff0a;justify-content:space-between;align-items:center;padding:.35rem .85rem;font-size:.72rem;display:flex}[data-theme=light] .runner-footer-hint{color:#64748b;background:#f8fafc;border-top-color:#f1f5f9}.runner-footer-hint strong{color:#10b981}.p5-mode .runner-footer-hint strong{color:#a78bfa}.js-note-reader-layout{z-index:1;min-height:calc(100vh - 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.note-main-content{padding:var(--space-6) var(--space-8);flex-grow:1;width:100%;max-width:920px;margin:0 auto}.js-note-reader-layout .reader-top-bar{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.js-note-reader-layout .top-bar-left{gap:var(--space-2);flex-direction:column;display:flex}.js-note-reader-layout .btn-back{align-items:center;gap:var(--space-1);color:var(--text-muted);font-size:var(--text-xs);transition:color var(--transition-fast);text-decoration:none;display:inline-flex}.js-note-reader-layout .btn-back:hover{color:var(--color-success)}.js-note-reader-layout .topic-meta-pills{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.js-note-reader-layout .pill{font-size:var(--text-2xs);border-radius:var(--radius-full);border:1px solid #0000;align-items:center;gap:4px;padding:3px 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0;font-weight:700}.js-note-reader-layout .note-h4{font-size:var(--text-sm);color:var(--text-primary);margin:var(--space-3) 0 var(--space-1) 0;font-weight:700}.js-note-reader-layout .note-p{font-size:var(--text-base);color:var(--text-secondary);margin-bottom:var(--space-4);line-height:1.7}.js-note-reader-layout .note-bullet{font-size:var(--text-base);color:var(--text-secondary);margin-bottom:var(--space-2);margin-left:var(--space-6);line-height:1.6;list-style-type:disc}.js-note-reader-layout .note-ordered{list-style-type:decimal}.js-note-reader-layout .note-divider{border:none;border-top:1px solid var(--border-subtle);margin:var(--space-6) 0}.js-note-reader-layout .note-code-wrapper{margin:var(--space-4) 0 var(--space-6) 0;border-radius:var(--radius-lg);border:1px solid var(--border-subtle);overflow:hidden}.js-note-reader-layout .mobile-code-hint{display:none}.js-note-callout{border:1px solid #10b98133;border-left:4px solid var(--color-success);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);margin-bottom:var(--space-6);background:#10b9810f}.js-note-callout .callout-title{font-size:var(--text-sm);color:var(--color-success);margin-bottom:var(--space-2);font-weight:800}.js-note-callout p{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-1);line-height:1.6}.js-note-blockquote{border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);margin:var(--space-3) 0 var(--space-4) 0;background:#8b5cf60f;border-left:4px solid #8b5cf6}.js-note-blockquote p{font-size:var(--text-sm);color:var(--text-secondary);margin:0;line-height:1.6}.js-note-reader-layout .callout-badge{align-items:center;gap:var(--space-2);border-radius:var(--radius-full);font-size:var(--text-xs);margin-bottom:var(--space-3);padding:4px 12px;font-weight:800;display:inline-flex}.js-note-reader-layout 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.btn-left{align-items:center;gap:var(--space-2);color:var(--color-warning);display:flex}.js-note-reader-layout .toggle-badge{font-size:var(--text-xs);color:var(--color-success);font-weight:600}.js-note-reader-layout .cfu-explanation-body{padding:var(--space-4);background:var(--bg-card);border-top:1px solid var(--border-subtle);font-size:var(--text-sm);color:var(--text-secondary);line-height:1.6}.js-note-reader-layout .reader-footer-nav{justify-content:space-between;gap:var(--space-4);display:flex}.js-note-reader-layout .nav-btn{align-items:center;gap:var(--space-3);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-4);color:var(--text-primary);transition:all var(--transition-fast);width:100%;max-width:320px;text-decoration:none;display:flex}.js-note-reader-layout .nav-btn:hover{border-color:var(--color-success);transform:translateY(-2px)}.js-note-reader-layout 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.note-main-content{max-width:100%;padding:12px 14px}.js-note-reader-layout .reader-top-bar{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:16px}.js-note-reader-layout .topic-meta-pills{gap:6px}.js-note-reader-layout .pill{padding:3px 8px;font-size:10px}.js-note-reader-layout .btn-complete{justify-content:center;width:100%;min-height:44px;padding:10px;font-size:13px}.js-note-reader-layout .note-article-card{box-shadow:none;background:#0f172ab3;border:1px solid #ffffff14;border-radius:16px;margin-bottom:20px;padding:16px 14px}.js-note-reader-layout .note-h1{margin-bottom:14px;padding-bottom:10px;font-size:1.35rem;line-height:1.3}.js-note-reader-layout .chunk-header-banner{border-radius:10px;margin:20px 0 14px;padding:10px 12px;font-size:12px}.js-note-reader-layout .note-h2{margin:18px 0 10px;font-size:1.15rem}.js-note-reader-layout .note-h3{margin:14px 0 8px;font-size:1rem}.js-note-reader-layout .note-h4{font-size:.9rem}.js-note-reader-layout 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