*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:'Inter',sans-serif;background:#ffffff;color:#374151;overflow-x:hidden;line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:'Poppins',sans-serif;line-height:1.18}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}ul{list-style:none}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid #E5E7EB;height:64px;transition:box-shadow 0.25s ease}.site-nav.nav-scrolled{box-shadow:0 4px 20px rgba(15,23,42,0.08)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%}.nav-logo{display:flex;align-items:center;gap:10px;font-family:'Poppins',sans-serif;font-weight:800;font-size:1.4rem;color:#111827}.nav-logo-icon{width:38px;height:38px;border-radius:10px;background:#16A34A;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem}.nav-logo-accent{color:#16A34A}.nav-links{display:flex;align-items:center;gap:2px}.nav-link{padding:8px 14px;border-radius:8px;font-size:0.875rem;font-weight:500;color:#6B7280;transition:color 0.15s,background 0.15s}.nav-link:hover{color:#111827;background:#F3F4F6}.nav-cta{display:inline-flex;align-items:center;gap:7px;padding:9px 20px;margin-left:8px;border-radius:999px;background:#16A34A;color:#fff;font-size:0.875rem;font-weight:700;transition:background 0.15s,transform 0.15s,box-shadow 0.15s;box-shadow:0 4px 14px 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menu-slide{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.nav-mobile-link{display:flex;align-items:center;min-height:48px;padding:12px 16px;border-radius:8px;font-weight:500;color:#4B5563;transition:color 0.15s,background 0.15s}.nav-mobile-link:hover{color:#111827;background:#F3F4F6}.nav-mobile-cta{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:10px;padding:13px;border-radius:12px;background:#16A34A;color:#fff;font-weight:700}.hero{position:relative;min-height:calc(100vh - 68px);min-height:calc(100svh - 68px);display:flex;align-items:center;padding:96px 24px 80px;overflow:hidden;background:linear-gradient(135deg,#F0FDF4 0%,#FFFFFF 50%,#EFF6FF 100%);contain:paint}.hero-blob{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;contain:strict;will-change:transform;transform:translate3d(0,0,0);animation:blob-drift 14s ease-in-out infinite}.hero-blob--green{width:480px;height:480px;background:rgba(134,239,172,0.45);top:-100px;right:-60px;animation-delay:0s}.hero-blob--blue{width:380px;height:380px;background:rgba(147,197,253,0.35);bottom:0;left:-40px;animation-delay:-5s}.hero-blob--yellow{width:260px;height:260px;background:rgba(253,224,71,0.25);top:30%;right:20%;animation-delay:-9s}@keyframes blob-drift{0%,100%{transform:translate3d(0,0,0)}33%{transform:translate3d(20px,-15px,0)}66%{transform:translate3d(-15px,20px,0)}}.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;max-width:1200px;margin:0 auto;position:relative;z-index:1}.hero-eyebrow{display:inline-block;font-size:0.75rem;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:#15803D;background:#DCFCE7;padding:5px 14px;border-radius:999px;margin-bottom:20px}.hero-title{font-size:clamp(2.4rem,5vw,3.8rem);font-weight:900;color:#111827;letter-spacing:-0.025em;margin-bottom:20px}.hero-title-gradient{background:linear-gradient(to right,#16A34A,#0EA5E9);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:1.1rem;color:#6B7280;line-height:1.75;margin-bottom:36px;max-width:480px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:32px}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;background:#16A34A;color:#fff;font-weight:700;font-size:1rem;box-shadow:0 6px 20px rgba(22,163,74,0.35);transition:background 0.15s,transform 0.15s,box-shadow 0.15s;position:relative;overflow:hidden}.btn-primary::after{content:'';position:absolute;top:0;left:-100%;width:60%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.18),transparent);transition:left 0.5s}.btn-primary:hover::after{left:150%}.btn-primary:hover{background:#15803D;transform:translateY(-2px);box-shadow:0 10px 28px rgba(22,163,74,0.40)}.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:999px;border:2px solid #E5E7EB;color:#374151;font-weight:700;font-size:1rem;background:#fff;transition:border-color 0.15s,color 0.15s,transform 0.15s}.btn-outline:hover{border-color:#16A34A;color:#16A34A;transform:translateY(-2px)}.hero-subjects{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.hero-subjects-label{font-size:0.83rem;color:#4B5563;margin-right:4px}.subject-bubble{width:34px;height:34px;border-radius:999px;border:2px solid #fff;display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.75rem;box-shadow:0 2px 8px rgba(0,0,0,0.12)}.subject-bubble--green{background:#22C55E}.subject-bubble--blue{background:#3B82F6}.subject-bubble--purple{background:#8B5CF6}.subject-bubble--red{background:#EF4444}.subject-bubble--amber{background:#F59E0B}.subject-bubble--indigo{background:#6366F1}.hero-mockup{display:flex;justify-content:flex-end;align-items:center;position:relative}.mockup-card{background:#fff;border-radius:24px;box-shadow:0 25px 60px rgba(15,23,42,0.14);border:1px solid #F3F4F6;padding:28px;width:100%;max-width:380px;position:relative;z-index:1;animation:float 6s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}.mockup-blob-1{position:absolute;top:-24px;right:-24px;width:140px;height:140px;background:#BBF7D0;border-radius:50%;opacity:0.7}.mockup-blob-2{position:absolute;bottom:-12px;left:-12px;width:90px;height:90px;background:#BFDBFE;border-radius:50%;opacity:0.7}.mockup-header{display:flex;align-items:center;gap:14px;padding-bottom:16px;border-bottom:1px solid #F3F4F6;margin-bottom:20px}.mockup-avatar{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,#4ADE80,#0EA5E9);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.4rem}.mockup-name{font-family:'Poppins',sans-serif;font-weight:700;font-size:1rem;color:#111827}.mockup-level{font-size:0.8rem;color:#4B5563}.mockup-messages{display:flex;flex-direction:column;gap:12px}.mockup-msg-user{align-self:flex-end;max-width:88%;background:linear-gradient(135deg,#22C55E,#0EA5E9);color:#fff;border-radius:18px 18px 4px 18px;padding:12px 16px;font-size:0.82rem;line-height:1.5}.mockup-msg-ai{align-self:flex-start;max-width:92%;background:#F9FAFB;border:1px solid #F3F4F6;color:#374151;border-radius:18px 18px 18px 4px;padding:12px 16px;font-size:0.82rem;line-height:1.5}.mockup-quiz-btn{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;padding:10px 16px;background:#FEF9C3;color:#854D0E;border-radius:999px;font-size:0.82rem;font-weight:700;cursor:default}.mockup-badge{position:absolute;background:#fff;border:1px solid #F3F4F6;border-radius:14px;padding:8px 14px;display:flex;align-items:center;gap:8px;box-shadow:0 4px 16px rgba(15,23,42,0.10);font-size:0.78rem;font-weight:600;color:#374151;animation:float 7s ease-in-out infinite;white-space:nowrap}.mockup-badge--tl{top:-16px;left:-20px;animation-delay:-2s}.mockup-badge--br{bottom:20px;right:-24px;animation-delay:-4s}.badge-dot{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:0.85rem}.badge-dot--green{background:#DCFCE7;color:#15803D}.badge-dot--purple{background:#EDE9FE;color:#7C3AED}.products-section{padding:80px 24px;background:#fff}.section-header{text-align:center;margin-bottom:56px}.section-eyebrow{display:inline-block;font-size:0.75rem;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:#15803D;background:#DCFCE7;padding:5px 14px;border-radius:999px;margin-bottom:14px}.section-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;color:#111827;letter-spacing:-0.02em;margin-bottom:12px}.section-subtitle{font-size:1rem;color:#6B7280;max-width:560px;margin:0 auto;line-height:1.7}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1100px;margin:0 auto}.product-card{background:#fff;border-radius:24px;border:1px solid #F3F4F6;padding:36px 28px;box-shadow:0 4px 16px rgba(15,23,42,0.06);transition:transform 0.22s ease,box-shadow 0.22s ease,border-color 0.22s ease;display:flex;flex-direction:column;position:relative;overflow:hidden}.product-card:hover{transform:translateY(-6px);box-shadow:0 20px 48px rgba(15,23,42,0.12)}.product-card--green:hover{border-color:#86EFAC}.product-card--purple:hover{border-color:#C4B5FD}.product-card--blue:hover{border-color:#93C5FD}.product-card-corner{position:absolute;top:0;right:0;width:120px;height:120px;border-radius:0 24px 0 100%;opacity:0.5;transition:transform 0.3s ease}.product-card:hover .product-card-corner{transform:scale(1.15)}.product-card--green .product-card-corner{background:#F0FDF4}.product-card--purple .product-card-corner{background:#F5F3FF}.product-card--blue .product-card-corner{background:#EFF6FF}.product-badge{position:absolute;top:20px;right:20px;font-size:0.68rem;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;padding:4px 12px;border-radius:999px}.badge--green{background:#DCFCE7;color:#15803D}.badge--purple{background:#EDE9FE;color:#6D28D9}.badge--blue{background:#DBEAFE;color:#1D4ED8}.product-icon{width:62px;height:62px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:22px;position:relative;z-index:1;transition:transform 0.22s ease}.product-card:hover .product-icon{transform:scale(1.08) rotate(-4deg)}.product-icon--green{background:#DCFCE7;color:#15803D}.product-icon--purple{background:#EDE9FE;color:#7C3AED}.product-icon--blue{background:#DBEAFE;color:#1D4ED8}.product-name{font-size:1.3rem;font-weight:700;color:#111827;margin-bottom:10px;position:relative;z-index:1}.product-desc{font-size:0.875rem;color:#6B7280;line-height:1.7;margin-bottom:22px;flex-grow:1;position:relative;z-index:1}.product-features{display:flex;flex-direction:column;gap:7px;margin-bottom:26px;position:relative;z-index:1}.product-feature{display:flex;align-items:center;gap:9px;font-size:0.82rem;color:#6B7280}.product-feature i{font-size:0.65rem}.product-card--green .product-feature i{color:#22C55E}.product-card--purple .product-feature i{color:#8B5CF6}.product-card--blue .product-feature i{color:#3B82F6}.product-cta{display:inline-flex;align-items:center;gap:7px;font-size:0.875rem;font-weight:700;position:relative;z-index:1;transition:gap 0.18s}.product-cta i{font-size:0.7rem;transition:transform 0.18s}.product-card:hover .product-cta i{transform:translateX(4px)}.product-card--green .product-cta{color:#15803D}.product-card--purple .product-cta{color:#7C3AED}.product-card--blue .product-cta{color:#1D4ED8}.product-card--disabled{opacity:0.55;cursor:not-allowed;pointer-events:none}.howto-section{padding:100px 24px;background:#F9FAFB}.howto-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;max-width:1060px;margin:0 auto}.howto-step{background:#fff;border-radius:24px;border:1px solid #F3F4F6;padding:36px 28px;text-align:center;box-shadow:0 4px 14px rgba(15,23,42,0.05);transition:transform 0.22s ease,box-shadow 0.22s ease}.howto-step:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(15,23,42,0.10)}.howto-icon{width:64px;height:64px;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:1.7rem;margin:0 auto 20px;transition:transform 0.22s}.howto-step:hover .howto-icon{transform:scale(1.08) rotate(-4deg)}.howto-icon--green{background:#DCFCE7;color:#15803D}.howto-icon--purple{background:#EDE9FE;color:#7C3AED}.howto-icon--blue{background:#DBEAFE;color:#1D4ED8}.howto-number{display:inline-block;font-size:0.7rem;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;color:#9CA3AF;margin-bottom:10px}.howto-title{font-size:1.05rem;font-weight:700;color:#111827;margin-bottom:10px}.howto-desc{font-size:0.86rem;color:#6B7280;line-height:1.7}.features-section{padding:100px 24px;background:#F0FDF4;position:relative;overflow:hidden}.features-section::before{content:'';position:absolute;top:-60px;right:-60px;width:400px;height:400px;background:#fff;border-radius:50%;filter:blur(80px);opacity:0.6;pointer-events:none}.features-inner{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;max-width:1060px;margin:0 auto;position:relative;z-index:1}.features-text-title{font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:800;color:#111827;letter-spacing:-0.02em;margin-bottom:16px}.features-text-title span{color:#16A34A}.features-text-lead{font-size:1rem;color:#6B7280;line-height:1.75;margin-bottom:36px}.features-list{display:flex;flex-direction:column;gap:24px}.feature-item{display:flex;align-items:flex-start;gap:16px}.feature-item-icon{width:44px;height:44px;border-radius:12px;background:#DCFCE7;color:#15803D;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}.feature-item-title{font-size:1rem;font-weight:700;color:#111827;margin-bottom:4px}.feature-item-desc{font-size:0.855rem;color:#6B7280;line-height:1.65}.features-grid-right{display:grid;grid-template-columns:1fr 1fr;gap:16px}.feature-tile{background:#fff;border-radius:20px;padding:24px 20px;border:1px solid #DCFCE7;box-shadow:0 4px 12px rgba(15,23,42,0.05);text-align:center;transition:transform 0.2s,box-shadow 0.2s}.feature-tile:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(15,23,42,0.10)}.feature-tile-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin:0 auto 12px}.feature-tile-icon--green{background:#DCFCE7;color:#15803D}.feature-tile-icon--blue{background:#DBEAFE;color:#1D4ED8}.feature-tile-icon--purple{background:#EDE9FE;color:#7C3AED}.feature-tile-icon--amber{background:#FEF3C7;color:#B45309}.feature-tile-title{font-size:0.88rem;font-weight:700;color:#111827;margin-bottom:4px}.feature-tile-desc{font-size:0.78rem;color:#9CA3AF;line-height:1.5}.cta-section{padding:80px 24px;background:#fff}.cta-card{max-width:860px;margin:0 auto;text-align:center;background:linear-gradient(135deg,#F0FDF4 0%,#EFF6FF 100%);border:1px solid #D1FAE5;border-radius:32px;padding:72px 56px;box-shadow:0 10px 40px rgba(22,163,74,0.08);position:relative;overflow:hidden}.cta-card::before{content:'';position:absolute;top:-60px;right:-60px;width:250px;height:250px;background:#22C55E;opacity:0.08;border-radius:50%;filter:blur(40px);pointer-events:none}.cta-title{font-size:clamp(1.8rem,3.5vw,2.4rem);font-weight:800;color:#111827;letter-spacing:-0.02em;margin-bottom:14px}.cta-subtitle{font-size:1rem;color:#6B7280;max-width:440px;margin:0 auto 36px;line-height:1.72}.cta-actions{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.site-footer{background:#fff;border-top:1px solid #F3F4F6;padding:64px 24px 32px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;max-width:1100px;margin:0 auto 48px}.footer-brand-logo{display:flex;align-items:center;gap:10px;font-family:'Poppins',sans-serif;font-size:1.3rem;font-weight:800;color:#111827;margin-bottom:12px}.footer-logo-icon{width:34px;height:34px;border-radius:8px;background:#16A34A;display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.85rem}.footer-brand-accent{color:#16A34A}.footer-desc{font-size:0.85rem;color:#4B5563;line-height:1.7;max-width:260px;margin-bottom:20px}.footer-socials{display:flex;gap:14px}.footer-social{width:48px;height:48px;border-radius:999px;background:#F3F4F6;display:flex;align-items:center;justify-content:center;color:#4B5563;font-size:1.05rem;transition:background 0.15s,color 0.15s}.footer-social:hover{background:#DCFCE7;color:#16A34A}.footer-col-title{font-size:0.75rem;font-weight:700;letter-spacing:0.09em;text-transform:uppercase;color:#374151;margin-bottom:16px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-link{display:inline-flex;align-items:center;min-height:44px;padding:6px 0;font-size:0.875rem;color:#4B5563;transition:color 0.15s}.footer-link:hover{color:#16A34A}.footer-bottom{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding-top:28px;border-top:1px solid #F3F4F6;flex-wrap:wrap;gap:12px}.footer-copy{font-size:0.82rem;color:#4B5563}.footer-badges{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.footer-badge{display:flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:#F9FAFB;border:1px solid #E5E7EB;font-size:0.75rem;color:#374151}.footer-badge i{color:#22C55E}.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}.reveal.visible{opacity:1;transform:translateY(0)}.reveal-delay-1{transition-delay:0.1s}.reveal-delay-2{transition-delay:0.2s}.reveal-delay-3{transition-delay:0.3s}.mockup-pills{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.mockup-pill{font-size:0.72rem;font-weight:600;padding:4px 10px;border-radius:999px;background:#EFF6FF;color:#2563EB;border:1px solid #DBEAFE}.mastery-section{padding:80px 0;background:#F9FAFB;border-top:1px solid #F3F4F6;border-bottom:1px solid #F3F4F6}.mastery-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.mastery-tag{display:inline-block;font-size:0.75rem;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:#7C3AED;background:#F3E8FF;padding:5px 14px;border-radius:999px;margin-bottom:16px}.mastery-title{font-size:clamp(1.8rem,3.5vw,2.4rem);font-weight:800;color:#111827;line-height:1.25;margin-bottom:18px}.mastery-lead{font-size:1rem;color:#4B5563;line-height:1.7;margin-bottom:24px}.mastery-features{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}.mastery-feature-item{display:flex;align-items:flex-start;gap:10px;font-size:0.92rem;color:#374151}.mastery-feature-icon{width:22px;height:22px;border-radius:50%;background:#DCFCE7;color:#16A34A;display:flex;align-items:center;justify-content:center;font-size:0.7rem;flex-shrink:0;margin-top:2px}.mastery-widget{background:#111827;border-radius:28px;padding:32px;color:#ffffff;box-shadow:0 20px 45px rgba(15,23,42,0.16);border:1px solid #1F2937;max-width:440px;margin:0 auto}.mastery-widget-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid #1F2937;margin-bottom:20px}.mastery-widget-subtitle{font-size:0.75rem;color:#9CA3AF}.mastery-widget-heading{font-size:0.95rem;font-weight:700;color:#ffffff}.mastery-widget-status{font-size:0.75rem;font-weight:600;padding:3px 10px;border-radius:999px;background:rgba(34,197,94,0.15);color:#4ADE80;border:1px solid rgba(34,197,94,0.3)}.mastery-items-list{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}.mastery-row-item{background:rgba(31,41,55,0.7);border:1px solid #374151;border-radius:14px;padding:12px 16px}.mastery-row-meta{display:flex;justify-content:space-between;align-items:center;font-size:0.8rem;font-weight:600;margin-bottom:8px}.mastery-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}.mastery-dot--green{background:#22C55E}.mastery-dot--amber{background:#F59E0B}.mastery-dot--rose{background:#F43F5E}.mastery-status-badge{font-size:0.75rem;font-weight:700}.mastery-status--green{color:#4ADE80}.mastery-status--amber{color:#FBBF24}.mastery-status--rose{color:#FB7185}.mastery-progress-track{width:100%;height:7px;background:#374151;border-radius:999px;overflow:hidden}.mastery-progress-bar{height:100%;border-radius:999px;transition:width 0.8s ease}.mastery-progress-bar--green{background:#22C55E}.mastery-progress-bar--amber{background:#F59E0B}.mastery-progress-bar--rose{background:#F43F5E}.mastery-bar-w87{width:87%}.mastery-bar-w63{width:63%}.mastery-bar-w41{width:41%}.mastery-widget-tip{background:rgba(88,28,135,0.35);border:1px solid rgba(147,51,234,0.4);border-radius:14px;padding:14px;font-size:0.8rem;color:#E9D5FF;line-height:1.5}.mastery-tip-title{font-weight:700;color:#F3E8FF;display:flex;align-items:center;gap:6px;margin-bottom:4px}.mastery-widget-explanation{margin-top:14px;padding-top:12px;border-top:1px solid #1F2937;font-size:0.76rem;color:#9CA3AF;line-height:1.55;display:flex;align-items:flex-start;gap:8px}.mastery-widget-explanation i{color:#38BDF8;margin-top:2px;flex-shrink:0}.comparison-section{padding:80px 0;background:#ffffff}.comparison-table-wrapper{overflow-x:auto;margin-top:36px;border-radius:20px;border:1px solid #E5E7EB;box-shadow:0 4px 20px rgba(15,23,42,0.04)}.comparison-table{width:100%;border-collapse:collapse;text-align:left;font-size:0.92rem}.comparison-table th,.comparison-table td{padding:16px 20px;border-bottom:1px solid #F3F4F6}.comparison-table thead th{background:#F9FAFB;font-weight:700;color:#111827;font-size:0.95rem}.comparison-table thead th:nth-child(2){background:#F0FDF4;color:#16A34A;text-align:center}.comparison-table thead th:nth-child(3){background:#FAF5FF;color:#7C3AED;text-align:center}.comparison-table tbody tr:last-child td{border-bottom:none}.comparison-table tbody td:nth-child(2),.comparison-table tbody td:nth-child(3){text-align:center}.comparison-situation{font-weight:600;color:#1F2937}.cell-badge{display:inline-flex;align-items:center;gap:6px;font-size:0.8rem;font-weight:600;padding:4px 10px;border-radius:999px}.cell-badge--green{background:#DCFCE7;color:#15803D}.cell-badge--purple{background:#F3E8FF;color:#6D28D9}.cell-dash{color:#D1D5DB;font-weight:700}@media (max-width:1024px){.hero{min-height:auto;padding:100px 24px 60px}.mastery-inner{grid-template-columns:1fr;text-align:center}.mastery-features{align-items:center}.mastery-feature-item{text-align:left}.hero-inner{grid-template-columns:1fr;text-align:center;gap:40px}.hero-subtitle{margin:0 auto 36px}.hero-actions{justify-content:center}.hero-subjects{justify-content:center}.hero-mockup{justify-content:center}.mockup-badge--tl,.mockup-badge--br{display:none}.products-grid{grid-template-columns:1fr 1fr}.howto-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}.features-inner{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}@media (max-width:768px){.hero-blob{animation:none;filter:blur(40px)}.nav-links{display:none}.nav-mobile-toggle{display:flex}.products-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}.features-grid-right{grid-template-columns:1fr 1fr}.hero-actions{flex-direction:column;align-items:stretch;max-width:300px;margin-left:auto;margin-right:auto}.btn-primary,.btn-outline{justify-content:center}.cta-card{padding:44px 24px}.cta-actions{flex-direction:column;align-items:stretch;max-width:280px;margin-left:auto;margin-right:auto}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column;text-align:center}.footer-badges{justify-content:center}}@media (max-width:480px){.features-grid-right{grid-template-columns:1fr}}