:root{--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-surface:#fff;--bg-surface-elevated:#fff;--bg-surface-hover:#f0fdf4;--bg-glass:#fff;--bg-glass-card:#fff;--border-subtle:#e2e8f0;--border-glow:#00a65159;--border-active:#00a651;--brand-green:#00a651;--brand-green-hover:#008f45;--brand-green-dark:#007335;--brand-green-light:#f0fdf4;--brand-green-border:#86efac;--brand-green-glow:#00a65140;--brand-cyan:#00a651;--brand-cyan-glow:#00a65140;--brand-indigo:#00a651;--brand-purple:#16a34a;--brand-gold:#d97706;--brand-gold-glow:#d9770633;--color-success:#00a651;--color-success-bg:#f0fdf4;--color-warning:#f59e0b;--color-danger:#ef4444;--color-danger-bg:#fef2f2;--color-info:#0284c7;--font-heading:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--text-accent:#00a651;--text-gold:#b45309;--shadow-sm:0 1px 3px 0 #0000000d, 0 1px 2px 0 #00000008;--shadow-md:0 4px 16px -2px #0000000f, 0 2px 6px -1px #00000008;--shadow-lg:0 12px 32px -4px #00000014, 0 4px 12px -2px #0000000a;--glow-cyan:0 0 20px #00a65133;--glow-indigo:0 0 20px #00a65133;--glow-gold:0 0 16px #f59e0b33;--glow-green:0 0 20px #00a65140;--transition-fast:.12s cubic-bezier(.4, 0, .2, 1);--transition-normal:.22s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.35s cubic-bezier(.16, 1, .3, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;background-color:#fff;font-size:16px}body{color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#fff;min-height:100vh;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-primary);letter-spacing:-.02em;font-weight:800;line-height:1.25}h1{font-size:2.4rem}h2{font-size:1.75rem}h3{font-size:1.35rem}h4{font-size:1.1rem}p{color:var(--text-secondary);font-size:.975rem;line-height:1.65}a{color:var(--brand-green);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--brand-green-hover)}button{cursor:pointer;-webkit-user-select:none;user-select:none;background:0 0;border:none;outline:none;font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f8fafc}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.app-container{background-color:#fff;flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:1.5rem 1.25rem 4rem}.glass-card{border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);transition:transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);background:#fff;border-radius:20px}.glass-card:hover{border-color:var(--brand-green-border);box-shadow:var(--shadow-md), var(--glow-green)}.gradient-text{background:linear-gradient(135deg,#00a651 0%,#007335 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.gradient-gold{background:linear-gradient(135deg,#f59e0b 0%,#b45309 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.btn{transition:all var(--transition-fast);white-space:nowrap;letter-spacing:-.01em;border-radius:14px;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1.4rem;font-size:.925rem;font-weight:700;display:inline-flex;position:relative}.btn-primary{color:#fff;background:linear-gradient(#00b050 0%,#00a651 100%);border-bottom:4px solid #007a3c;box-shadow:0 4px 14px #00a65159}.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px)}.btn-primary:active{border-bottom:1px solid #007a3c;transform:translateY(3px);box-shadow:0 1px 4px #00a65159}.btn-accent{color:#fff;background:linear-gradient(#fbbf24 0%,#d97706 100%);border-bottom:4px solid #92400e;font-weight:800;box-shadow:0 4px 14px #d977064d}.btn-accent:hover{filter:brightness(1.05);transform:translateY(-1px)}.btn-accent:active{border-bottom:1px solid #92400e;transform:translateY(3px);box-shadow:0 1px 4px #d977064d}.btn-success{color:#fff;background:linear-gradient(#00b050 0%,#00a651 100%);border-bottom:4px solid #007a3c;box-shadow:0 4px 14px #00a65159}.btn-success:hover{filter:brightness(1.05);transform:translateY(-1px)}.btn-success:active{border-bottom:1px solid #007a3c;transform:translateY(3px)}.btn-secondary{color:var(--text-primary);background:#fff;border:1px solid #cbd5e1;border-bottom:3px solid #94a3b8;box-shadow:0 2px 6px #0000000a}.btn-secondary:hover{border-color:var(--brand-green);background:#f8fafc;transform:translateY(-1px)}.btn-secondary:active{border-bottom-width:1px;transform:translateY(2px)}.btn-ghost{color:var(--text-secondary);border-radius:10px;padding:.5rem .75rem}.btn-ghost:hover{color:var(--brand-green);background:#f1f5f9}.mascot-speech-bubble{border:2px solid var(--brand-green);color:var(--text-primary);background:#fff;border-radius:18px;padding:.85rem 1.25rem;font-weight:600;position:relative;box-shadow:0 6px 20px #00a65126}.mascot-speech-bubble:after{content:"";border-left:10px solid #0000;border-right:10px solid #0000;border-top:10px solid var(--brand-green);width:0;height:0;position:absolute;bottom:-10px;left:28px}.mascot-avatar-circle{border:3px solid var(--brand-green);background:#fff;border-radius:50%;flex-shrink:0;width:72px;height:72px;overflow:hidden;box-shadow:0 0 20px #00a65140}.mascot-avatar-circle img{object-fit:cover;width:100%;height:100%}@keyframes flameWiggle{0%,to{transform:rotate(0)scale(1)}25%{transform:rotate(-8deg)scale(1.1)}75%{transform:rotate(8deg)scale(1.1)}}.flame-wiggle{animation:1.5s ease-in-out infinite flameWiggle;display:inline-block}@keyframes mascotBob{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.mascot-bob{animation:3.5s ease-in-out infinite mascotBob}.badge{text-transform:uppercase;letter-spacing:.04em;border-radius:9999px;align-items:center;gap:.35rem;padding:.3rem .75rem;font-size:.75rem;font-weight:700;display:inline-flex}.badge-beginner{color:#008742;background:#f0fdf4;border:1px solid #86efac}.badge-intermediate{color:#1d4ed8;background:#eff6ff;border:1px solid #bfdbfe}.badge-advanced{color:#b45309;background:#fefce8;border:1px solid #fde68a}.badge-status{color:#334155;background:#f1f5f9;border:1px solid #cbd5e1}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem;display:grid}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;display:grid}@media (width<=900px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=640px){.grid-2,.grid-3{grid-template-columns:1fr}h1{font-size:1.85rem}h2{font-size:1.4rem}.main-content{padding:1rem .85rem 3rem}}.site-header{z-index:50;-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);background:#fffffff2;padding:.75rem 1.5rem;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:1.5rem;max-width:1240px;margin:0 auto;display:flex}.brand-wrapper{cursor:pointer;align-items:center;gap:.85rem;text-decoration:none;display:flex}.brand-logo-crest{background:#f0fdf4;border:1px solid #86efac;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;display:flex;box-shadow:0 0 12px #00a65133}.brand-text-container{flex-direction:column;display:flex}.brand-title{font-family:var(--font-heading);letter-spacing:-.01em;color:var(--text-primary);font-size:1.15rem;font-weight:800;line-height:1.1}.brand-subtitle{text-transform:uppercase;letter-spacing:.12em;color:var(--brand-green);font-size:.7rem;font-weight:700}.nav-links{align-items:center;gap:.5rem;display:flex}.nav-btn{color:var(--text-secondary);transition:all var(--transition-fast);border-radius:8px;align-items:center;gap:.45rem;padding:.5rem .85rem;font-size:.875rem;font-weight:600;display:flex}.nav-btn:hover{color:var(--brand-green);background:#f8fafc}.nav-btn.active{color:var(--brand-green-dark);background:#f0fdf4;border:1px solid #86efac}.header-actions{align-items:center;gap:.75rem;display:flex}.streak-badge{color:var(--brand-gold);background:#fffbeb;border:1px solid #fde68a;border-radius:20px;align-items:center;gap:.35rem;padding:.35rem .75rem;font-size:.825rem;font-weight:700;display:flex}.streak-badge svg{color:#f59e0b}.hero-card{background:linear-gradient(135deg,#fff 0%,#f0fdf4 100%);border:1px solid #bbf7d0;border-radius:20px;margin-bottom:2rem;padding:2.5rem;position:relative;overflow:hidden;box-shadow:0 10px 30px #00a65114,0 2px 6px #0000000a}.hero-background-art{object-fit:cover;opacity:.15;pointer-events:none;width:50%;height:100%;position:absolute;top:0;right:0;-webkit-mask-image:linear-gradient(270deg,#000 0%,#0000 100%);mask-image:linear-gradient(270deg,#000 0%,#0000 100%)}.hero-content{z-index:2;max-width:640px;position:relative}.hero-tag{color:var(--brand-green-dark);background:#f0fdf4;border:1px solid #86efac;border-radius:9999px;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.3rem .85rem;font-size:.8rem;font-weight:700;display:inline-flex}.hero-title{color:var(--text-primary);margin-bottom:.85rem;font-size:2.3rem;line-height:1.2}.hero-desc{color:var(--text-secondary);margin-bottom:1.5rem;font-size:1.05rem}.hero-features-bar{border-top:1px solid var(--border-subtle);flex-wrap:wrap;gap:1.25rem;margin-top:1.5rem;padding-top:1.25rem;display:flex}.hero-feature-pill{color:var(--text-secondary);align-items:center;gap:.45rem;font-size:.825rem;font-weight:600;display:flex}.hero-feature-pill svg{color:var(--brand-green)}.resume-banner{background:#f0fdf4;border:1px solid #86efac;border-radius:14px;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:2rem;padding:1rem 1.5rem;display:flex}.topic-card{background:#fff;flex-direction:column;justify-content:space-between;padding:1.5rem;display:flex}.topic-header{justify-content:space-between;align-items:flex-start;margin-bottom:1rem;display:flex}.topic-icon-box{width:48px;height:48px;color:var(--brand-green);background:#f0fdf4;border:1px solid #86efac;border-radius:12px;justify-content:center;align-items:center;display:flex}.topic-lessons-list{flex-direction:column;gap:.65rem;margin-top:1.25rem;display:flex}.lesson-chip-item{border:1px solid var(--border-subtle);transition:all var(--transition-fast);cursor:pointer;background:#f8fafc;border-radius:10px;justify-content:space-between;align-items:center;padding:.75rem 1rem;display:flex}.lesson-chip-item:hover{background:#f0fdf4;border-color:#86efac;transform:translate(4px)}.reader-container{grid-template-columns:1fr 340px;align-items:start;gap:2rem;display:grid}@media (width<=990px){.reader-container{grid-template-columns:1fr}}.reader-main{flex-direction:column;gap:1.5rem;display:flex}.complexity-switcher{border:1px solid var(--border-subtle);background:#f1f5f9;border-radius:12px;gap:.35rem;margin:1.25rem 0;padding:.35rem;display:flex}.complexity-btn{color:var(--text-secondary);transition:all var(--transition-fast);border-radius:8px;flex:1;justify-content:center;align-items:center;gap:.45rem;padding:.6rem .85rem;font-size:.85rem;font-weight:600;display:flex}.complexity-btn.active{color:var(--brand-green-dark);border:1px solid var(--brand-green-border);background:#fff;box-shadow:0 2px 8px #00a6511f}.section-body{color:#1e293b;white-space:pre-line;font-size:1.05rem;line-height:1.75}.takeaway-box{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;gap:1rem;margin-top:1.25rem;padding:1.25rem;display:flex}.takeaway-icon{color:#f59e0b;flex-shrink:0}.sources-card{border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);background:#fff;border-radius:12px;padding:1.25rem}.source-item{border-bottom:1px solid var(--border-subtle);flex-direction:column;gap:.25rem;padding:.75rem 0;display:flex}.source-item:last-child{border-bottom:none}.quiz-container{max-width:760px;margin:0 auto}.question-card{background:#fff;margin-bottom:1.5rem;padding:1.75rem}.options-group{flex-direction:column;gap:.75rem;margin-top:1.25rem;display:flex}.option-btn{border:1px solid var(--border-subtle);color:var(--text-primary);text-align:left;transition:all var(--transition-fast);background:#f8fafc;border-radius:12px;align-items:center;gap:.85rem;padding:.95rem 1.25rem;font-size:.95rem;display:flex}.option-btn:hover{background:#f0fdf4;border-color:#86efac}.option-btn.selected{border-color:var(--brand-green);color:var(--brand-green-dark);background:#f0fdf4;box-shadow:0 0 14px #00a65133}.option-btn.correct{border-color:var(--brand-green)!important;color:#007a3c!important;background:#f0fdf4!important}.option-btn.incorrect{border-color:var(--color-danger)!important;color:#dc2626!important;background:#fef2f2!important}.tutor-drawer{z-index:100;background:#fff;border:1px solid #cbd5e1;border-radius:20px;flex-direction:column;width:440px;max-width:calc(100vw - 3rem);height:600px;max-height:calc(100vh - 5rem);animation:.3s cubic-bezier(.16,1,.3,1) slideUp;display:flex;position:fixed;bottom:1.5rem;right:1.5rem;overflow:hidden;box-shadow:0 20px 50px #00000026,0 0 25px #00a65126}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.tutor-header{border-bottom:1px solid var(--border-subtle);background:#f8fafc;justify-content:space-between;align-items:center;padding:1rem 1.25rem;display:flex}.tutor-modes-bar{border-bottom:1px solid var(--border-subtle);background:#fff;gap:.35rem;padding:.5rem 1rem;display:flex}.tutor-mode-btn{color:var(--text-secondary);background:#f1f5f9;border-radius:6px;padding:.3rem .65rem;font-size:.775rem;font-weight:600}.tutor-mode-btn.active{color:var(--brand-green-dark);background:#f0fdf4;border:1px solid #86efac}.tutor-messages{background:#fff;flex-direction:column;flex:1;gap:1rem;padding:1rem;display:flex;overflow-y:auto}.chat-bubble{border-radius:14px;max-width:88%;padding:.85rem 1.15rem;font-size:.925rem;line-height:1.55}.chat-bubble.user{color:#fff;background:#00a651;align-self:flex-end}.chat-bubble.assistant{border:1px solid var(--border-subtle);color:#1e293b;background:#f8fafc;align-self:flex-start}.tutor-input-area{border-top:1px solid var(--border-subtle);background:#f8fafc;gap:.5rem;padding:.85rem 1rem;display:flex}.tutor-input{color:var(--text-primary);background:#fff;border:1px solid #cbd5e1;border-radius:10px;outline:none;flex:1;padding:.65rem .95rem;font-size:.9rem}.tutor-input:focus{border-color:var(--brand-green)}.tutor-launcher-fab{color:#fff;z-index:90;height:56px;transition:transform var(--transition-fast), box-shadow var(--transition-fast);background:linear-gradient(135deg,#00b050 0%,#00a651 100%);border-radius:28px;align-items:center;gap:.65rem;padding:0 1.35rem;font-size:.95rem;font-weight:700;display:flex;position:fixed;bottom:2rem;right:2rem;box-shadow:0 10px 30px #00a65159}.tutor-launcher-fab:hover{transform:translateY(-3px)scale(1.02);box-shadow:0 14px 40px #00a65173}.mobile-bottom-nav{display:none}.hero-responsive-grid{grid-template-columns:1fr 260px;align-items:center;gap:2rem;display:grid}.hero-cta-buttons{flex-wrap:wrap;gap:1rem;display:flex}.hero-mascot-showcase{text-align:center;flex-direction:column;align-items:center;display:flex}.hero-speech-bubble{max-width:240px;margin-bottom:1rem;font-size:.85rem}.hero-mascot-avatar{background:#fff;border:4px solid #00a651;width:170px;height:170px;box-shadow:0 0 25px #00a65140}.hero-mascot-label{color:#0f172a;margin-top:.65rem;font-size:.95rem;font-weight:800}.resume-banner-info{align-items:center;gap:1rem;display:flex}.resume-banner-thumb{background:#fff;border:2px solid #00a651;border-radius:12px;flex-shrink:0;width:48px;height:48px;overflow:hidden}.catalog-filters-bar{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.75rem;display:flex}.category-scroll-container{white-space:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.5rem;padding-bottom:4px;display:flex;overflow-x:auto}.category-scroll-container::-webkit-scrollbar{display:none}.category-pill{color:#475569;background:#fff;border:1px solid #cbd5e1;border-radius:9999px;flex-shrink:0;padding:.5rem 1rem;font-size:.825rem;font-weight:600;box-shadow:0 1px 3px #0000000a}.category-pill.active{color:#007a3c;background:#f0fdf4;border-color:#00a651;font-weight:800}.search-input-box{min-width:260px;position:relative}.search-icon{color:#64748b;pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-text-field{color:#0f172a;width:100%;transition:border-color var(--transition-fast);background:#fff;border:1px solid #cbd5e1;border-radius:12px;outline:none;padding:.6rem .85rem .6rem 2.25rem;font-size:.85rem}.search-text-field:focus{border-color:var(--brand-green)}.reader-top-bar{justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:1.25rem;display:flex}.reader-badges-group{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.reader-stat-item{color:#64748b;align-items:center;gap:.25rem;font-size:.8rem;display:flex}.reader-xp-item{color:#b45309;align-items:center;gap:.2rem;font-size:.8rem;font-weight:800;display:flex}.reader-lens-card{background:#fff;padding:.85rem 1.25rem}.lens-header-row{justify-content:space-between;align-items:center;margin-bottom:.5rem;display:flex}.lens-title{color:#0f172a;text-transform:uppercase;letter-spacing:.06em;font-size:.8rem;font-weight:800}.lens-subtitle{color:#64748b;font-size:.75rem}.reader-section-tabs{border-bottom:1px solid var(--border-subtle);white-space:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.5rem;padding-bottom:.5rem;display:flex;overflow-x:auto}.reader-section-tabs::-webkit-scrollbar{display:none}.reader-section-tab-btn{color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;flex-shrink:0;padding:.45rem .85rem;font-size:.85rem;font-weight:700}.reader-section-tab-btn.active{color:#007a3c;background:#f0fdf4;border-color:#86efac}.section-header-row{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.25rem;display:flex}.section-title-text{color:#0f172a;font-size:1.4rem}.section-tutor-btn{flex-shrink:0;padding:.45rem .8rem;font-size:.8rem}.lesson-assessment-card{background:linear-gradient(135deg,#f0fdf4 0%,#fff 100%);border:1px solid #86efac;justify-content:space-between;align-items:center;gap:1.25rem;padding:1.75rem;display:flex}.lesson-assessment-btn{flex-shrink:0;padding:.85rem 1.75rem;font-size:1rem}.quiz-header-card{background:#fff;margin-bottom:1.5rem;padding:1.75rem}.quiz-header-inner{justify-content:space-between;align-items:center;gap:1rem;display:flex}.quiz-header-wolfie{align-items:center;gap:1rem;display:flex}.quiz-mascot-avatar{border:3px solid #00a651;flex-shrink:0;width:60px;height:60px}.quiz-header-tag{text-transform:uppercase;color:var(--brand-green-dark);letter-spacing:.08em;font-size:.75rem;font-weight:800}.quiz-header-h1{color:#0f172a;margin:.15rem 0 .2rem;font-size:1.75rem}.quiz-header-desc{color:#475569;margin:0;font-size:.85rem}.quiz-question-badge{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;flex-shrink:0;padding:.5rem 1rem}.quiz-submit-box{justify-content:flex-end;margin-top:1.5rem;display:flex}.quiz-submit-btn{padding:.9rem 2.25rem;font-size:1.05rem}.profile-stats-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;width:100%;display:grid}.profile-stat-box{text-align:center;border-radius:12px;padding:.75rem .5rem}.stat-streak{background:#fffbeb;border:1px solid #fde68a}.stat-completed{background:#f0fdf4;border:1px solid #86efac}.stat-score{background:#eff6ff;border:1px solid #bfdbfe}.stat-value-row{justify-content:center;align-items:center;gap:.35rem;display:flex}.stat-number{font-size:1.25rem;font-weight:800}.stat-label{text-transform:uppercase;margin-top:2px;font-size:.7rem;font-weight:700;display:block}.text-gold{color:#b45309}.text-green{color:#007a3c}.text-blue{color:#1d4ed8}.preference-buttons-group{flex-wrap:wrap;gap:.75rem;display:flex}.pref-choice-btn{text-transform:capitalize}.milestone-item-row{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;justify-content:space-between;align-items:center;gap:.75rem;padding:.85rem 1rem;display:flex}.milestone-badges-wrap{flex-wrap:wrap;gap:.4rem;display:flex}.milestone-badge{white-space:normal;text-align:left;font-size:.72rem}@media (width<=768px){.site-header{padding:.5rem .75rem}.header-inner{justify-content:space-between;gap:.5rem}.brand-wrapper{gap:.5rem}.brand-logo-crest{width:34px;height:34px}.brand-title{font-size:1.05rem}.brand-subtitle{display:none}.desktop-nav,.desktop-tutor-btn,.desktop-only-fab{display:none!important}.main-content{padding:.75rem .75rem 6rem!important}.mobile-bottom-nav{-webkit-backdrop-filter:blur(20px);z-index:95;height:60px;padding:0 .25rem calc(env(safe-area-inset-bottom,0px));background:#fffffff7;border-top:1px solid #e2e8f0;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 18px #0000000f}.mobile-nav-item{color:#64748b;height:100%;transition:all var(--transition-fast);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:.2rem;padding-top:4px;font-size:.68rem;font-weight:700;text-decoration:none;display:flex;position:relative}.mobile-nav-item.active{color:var(--brand-green-dark)}.mobile-nav-item.active .mobile-nav-icon-wrap{color:var(--brand-green);transform:translateY(-2px)}.mobile-nav-item.disabled{opacity:.35;pointer-events:none}.mobile-nav-icon-wrap{transition:transform var(--transition-fast);justify-content:center;align-items:center;display:flex}.mobile-nav-tutor-highlight{position:relative;top:-10px}.mobile-nav-wolfie-avatar{background:#fff;border:3px solid #00a651;border-radius:50%;width:44px;height:44px;position:relative;overflow:hidden;box-shadow:0 4px 14px #00a65159}.mobile-nav-wolfie-avatar img{object-fit:cover;width:100%;height:100%}.wolfie-indicator-dot{background:#22c55e;border:1.5px solid #fff;border-radius:50%;width:8px;height:8px;position:absolute;top:1px;right:1px}.wolfie-text-label{color:var(--brand-green-dark);font-size:.65rem;font-weight:800}.hero-card{border-radius:16px;margin-bottom:1.25rem;padding:1.35rem 1.15rem}.hero-responsive-grid{text-align:center;flex-direction:column-reverse;align-items:center;gap:1.25rem;display:flex}.hero-content{flex-direction:column;align-items:center;width:100%;display:flex}.hero-title{margin-bottom:.65rem!important;font-size:1.65rem!important;line-height:1.2!important}.hero-desc{margin-bottom:1.15rem!important;font-size:.925rem!important;line-height:1.5!important}.hero-cta-buttons{flex-direction:column;gap:.65rem;width:100%}.hero-btn-main,.hero-btn-sub{justify-content:center;width:100%;padding:.85rem 1rem;font-size:.95rem}.hero-features-bar{justify-content:center;gap:.65rem;width:100%;margin-top:1rem;padding-top:1rem}.hero-mascot-avatar{border-width:3px;width:100px;height:100px}.hero-speech-bubble{max-width:100%;margin-bottom:.75rem;padding:.65rem 1rem;font-size:.825rem}.hero-speech-bubble:after{left:50%;transform:translate(-50%)}.hero-mascot-label{display:none}.resume-banner{flex-direction:column;align-items:stretch;margin-bottom:1.25rem;padding:1rem}.resume-banner-btn{justify-content:center;width:100%}.catalog-filters-bar{flex-direction:column;align-items:stretch;gap:.75rem;margin-bottom:1.25rem}.category-scroll-container{width:100%}.search-input-box{width:100%;min-width:unset}.reader-top-bar{flex-direction:column;align-items:flex-start;gap:.5rem}.reader-badges-group{justify-content:flex-start;width:100%}.lesson-main-title{font-size:1.55rem!important}.complexity-switcher{flex-direction:column;gap:.35rem}.complexity-btn{justify-content:flex-start;width:100%;padding:.65rem .85rem;font-size:.85rem}.section-header-row{flex-direction:column;align-items:flex-start;gap:.75rem}.section-title-text{font-size:1.2rem}.section-tutor-btn{justify-content:center;width:100%}.reader-article-card{padding:1.25rem!important}.lesson-assessment-card{text-align:center;flex-direction:column;align-items:stretch;padding:1.25rem!important}.lesson-assessment-btn{justify-content:center;width:100%}.quiz-header-card{padding:1.25rem}.quiz-header-inner{flex-direction:column;align-items:flex-start;gap:.85rem}.quiz-mascot-avatar{width:48px;height:48px}.quiz-header-h1{font-size:1.35rem}.question-card{padding:1.25rem!important}.quiz-submit-box{justify-content:stretch}.quiz-submit-btn{justify-content:center;width:100%}.profile-stats-grid{grid-template-columns:repeat(3,1fr);gap:.45rem}.preference-buttons-group{flex-direction:column;gap:.5rem}.pref-choice-btn{text-align:left;white-space:normal;justify-content:flex-start;width:100%;padding:.75rem 1rem}.milestone-item-row{flex-direction:column;align-items:flex-start}.milestone-badges-wrap{width:100%}.profile-section-card{padding:1.25rem!important}.tutor-drawer{z-index:120!important;border-radius:0!important;width:100vw!important;max-width:100vw!important;height:100vh!important;max-height:100vh!important;inset:0!important}}.auth-modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:150;background:#0f172aa6;justify-content:center;align-items:center;padding:1rem;animation:.2s ease-out fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.auth-modal-card{background:#fff;border:1px solid #cbd5e1;border-radius:24px;width:100%;max-width:460px;padding:2rem;animation:.25s cubic-bezier(.16,1,.3,1) slideUp;position:relative;box-shadow:0 20px 60px #0000002e,0 0 30px #00a65126}.auth-modal-close-btn{color:#64748b;border-radius:8px;padding:.35rem;position:absolute;top:1.25rem;right:1.25rem}.auth-modal-header{align-items:center;gap:1rem;margin-bottom:1.25rem;display:flex}.auth-mascot-avatar{border:2.5px solid #00a651;flex-shrink:0;width:60px;height:60px}.auth-modal-tag{text-transform:uppercase;color:#007a3c;letter-spacing:.08em;font-size:.725rem;font-weight:800}.auth-modal-h2{color:#0f172a;margin:.15rem 0;font-size:1.45rem;line-height:1.2}.auth-modal-subtitle{color:#475569;margin:0;font-size:.825rem;line-height:1.4}.auth-tab-bar{border:1px solid var(--border-subtle);background:#f1f5f9;border-radius:12px;gap:.35rem;margin-bottom:1.25rem;padding:.3rem;display:flex}.auth-tab-btn{color:#64748b;border-radius:8px;flex:1;justify-content:center;align-items:center;gap:.4rem;padding:.55rem;font-size:.85rem;font-weight:700;transition:all .15s;display:flex}.auth-tab-btn.active{color:#007a3c;background:#fff;border:1px solid #86efac;box-shadow:0 2px 8px #0000000f}.auth-alert-banner{border-radius:10px;align-items:center;gap:.6rem;margin-bottom:1rem;padding:.75rem 1rem;font-size:.85rem;display:flex}.alert-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecdd3}.alert-success{color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0}.auth-form-fields{flex-direction:column;gap:1rem;display:flex}.auth-input-group label{color:#334155;margin-bottom:.35rem;font-size:.8rem;font-weight:700;display:block}.auth-input-wrapper{align-items:center;display:flex;position:relative}.auth-input-icon{color:#94a3b8;pointer-events:none;position:absolute;left:12px}.auth-text-input{color:#0f172a;background:#fff;border:1px solid #cbd5e1;border-radius:12px;outline:none;width:100%;padding:.7rem .85rem .7rem 2.4rem;font-size:.9rem;transition:border-color .15s,box-shadow .15s}.auth-text-input:focus{border-color:#00a651;box-shadow:0 0 0 3px #00a65126}.auth-forgot-link{color:#007a3c;cursor:pointer;background:0 0;border:none;font-size:.75rem;font-weight:700}.auth-submit-btn{justify-content:center;width:100%;margin-top:.35rem;padding:.85rem;font-size:.95rem}.auth-modal-footer{text-align:center;border-top:1px solid #e2e8f0;flex-direction:column;align-items:center;gap:.65rem;margin-top:1.25rem;padding-top:1rem;display:flex}.auth-privacy-pill{color:#64748b;align-items:center;gap:.4rem;font-size:.72rem;display:flex}.auth-continue-guest-btn{color:#475569;cursor:pointer;text-underline-offset:3px;background:0 0;border:none;font-size:.825rem;font-weight:600;text-decoration:underline}