@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap";:root{--accent:#8b5cf6;--accent-hover:#7c3aed;--accent-light:#8b5cf61a;--accent-shadow:#8b5cf640;--bg:#fafafa;--bg-alt:#fff;--bg-dark:#09090b;--bg-dark-alt:#121214;--text:#09090b;--text-sub:#52525b;--text-muted:#a1a1aa;--text-on-dark:#fafafa;--text-sub-dark:#a1a1aa;--border:#00000014;--border-strong:#00000026;--border-dark:#ffffff1a;--card-bg:#fff;--card-shadow:0 4px 20px -2px #00000008, 0 0 3px #00000005;--card-shadow-hover:0 12px 32px -4px #0000000f, 0 0 4px #00000008;--card-radius:24px;--font-sans:"Outfit", -apple-system, sans-serif;--font-display:"Outfit", -apple-system, sans-serif;--max-w:1200px;--section-py:clamp(56px, 8vw, 120px);--space-3xs:clamp(2px, .2vw + 1px, 4px);--space-2xs:clamp(4px, .4vw + 2px, 8px);--space-xs:clamp(8px, .8vw + 4px, 12px);--space-sm:clamp(12px, 1.2vw + 6px, 16px);--space-md:clamp(16px, 1.8vw + 8px, 24px);--space-lg:clamp(24px, 2.5vw + 12px, 40px);--space-xl:clamp(40px, 4vw + 16px, 64px);--space-2xl:clamp(64px, 6vw + 24px, 96px);--space-3xl:clamp(96px, 9vw + 32px, 144px);--space-gutter:clamp(16px, 4vw, 48px);--section-padding-y:clamp(56px, 8vw, 120px);--ease-apple:cubic-bezier(.16, 1, .3, 1);--ease-bounce:cubic-bezier(.34, 1.56, .64, 1);--duration-fast:.2s;--duration-normal:.4s;--duration-slow:.7s;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-xl:28px;--radius-full:980px;--sticky-bg:#fffbeb;--sticky-text:#78350f;--sticky-border:#f59e0b;--sticky-tape:#fbbf244d}.brand-logo-img{content:url(/logo-light.png);object-fit:contain}[data-theme=dark] .brand-logo-img{content:url(/logo-dark.png)}[data-theme=dark]{--bg:#000;--bg-alt:#09090b;--bg-dark:#000;--bg-dark-alt:#09090b;--text:#fff;--text-sub:#a1a1aa;--text-muted:#71717a;--text-on-dark:#fff;--border:#ffffff1a;--border-strong:#ffffff26;--card-bg:#09090b;--card-shadow:0 8px 32px -8px #000c, inset 0 1px 0 #ffffff05;--card-shadow-hover:0 16px 48px -12px #8b5cf626, inset 0 1px 0 #ffffff0d;--sticky-bg:#1a1708;--sticky-text:#fde68a;--sticky-border:#f59e0b;--sticky-tape:#fbbf242e}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-feature-settings:"cv02", "cv03", "cv04", "cv11";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;line-height:1.5;transition:background .3s,color .3s;overflow-x:hidden}a{color:inherit;text-decoration:none}h1,h2,h3,h4,h5{font-family:var(--font-display);letter-spacing:-.02em;font-weight:700;line-height:1.1}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#80808066;border-radius:10px;transition:background .2s}::-webkit-scrollbar-thumb:hover{background:#808080b3}body.is-scrolling 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20px}h1{font-size:2.2rem!important}h2{font-size:1.8rem!important}h3{font-size:1.4rem!important}}.main-content{width:100%;max-width:var(--max-w);padding:40px var(--space-gutter);flex:1;margin:0 auto}@media (width<=768px){.main-content{padding:24px 20px}}.comparison-grid{grid-template-columns:1fr auto 1fr;gap:0;display:grid}.pricing-grid{gap:var(--space-md);grid-template-columns:repeat(3,1fr);display:grid}@media (width<=900px){.pricing-grid{grid-template-columns:1fr}}@media (width<=768px){.comparison-grid{grid-template-columns:1fr}}.eyebrow,.section-eyebrow{font-family:var(--font-sans);letter-spacing:.06em;text-transform:uppercase;color:var(--text-sub);margin-bottom:var(--space-xs);font-size:clamp(.75rem,.8vw,.875rem);font-weight:600;display:inline-block}.headline-display{letter-spacing:-.03em;font-size:clamp(3rem,7vw,5.5rem);font-weight:800;line-height:1.05;font-family:var(--font-display)}.headline-section{letter-spacing:-.025em;font-size:clamp(2.25rem,4.5vw,3.75rem);font-weight:700;line-height:1.08;font-family:var(--font-display)}.subheadline{color:var(--text-sub);max-width:42ch;font-size:clamp(1.125rem,1.8vw,1.5rem);font-weight:400;line-height:1.45}.gradient-text{color:var(--accent)}.reveal-on-scroll{opacity:0;transition:opacity var(--duration-slow) var(--ease-apple), transform var(--duration-slow) var(--ease-apple);will-change:opacity, 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.15s;display:flex}.nav-avatar:hover{border-color:var(--accent);transform:translateY(-1px)}.btn{border-radius:var(--radius-full);font-family:var(--font-sans);cursor:pointer;transition:all var(--duration-fast) var(--ease-apple);white-space:nowrap;border:none;outline:none;align-items:center;gap:8px;padding:12px 24px;font-size:.95rem;font-weight:500;text-decoration:none;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background:var(--text);color:var(--bg);box-shadow:0 2px 8px #0000001a}[data-theme=dark] .btn-primary{color:#000;background:#fff}.btn-primary:hover{background:var(--text-sub);transform:scale(1.02);box-shadow:0 4px 16px #00000026}[data-theme=dark] .btn-primary:hover{background:#e4e4e7;transform:scale(1.02)}.btn-secondary{color:var(--text);border:1px solid var(--border);background:0 0}.btn-secondary:hover{background:var(--border);border-color:var(--border-strong);transform:scale(1.02)}.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px 0 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(width<=734px){.bento-card-half,.bento-card-third,.bento-card-two-thirds{grid-column:span 12}}.bento-card,.bento-item{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:var(--card-shadow);transition:transform var(--duration-normal) var(--ease-apple), box-shadow var(--duration-normal) ease;flex-direction:column;justify-content:space-between;display:flex;position:relative;overflow:hidden}.bento-card:hover,.bento-item:hover,.card.interactive:hover{box-shadow:var(--card-shadow-hover);transform:scale(1.015)}.badge{text-transform:uppercase;letter-spacing:.06em;border:1px solid;border-radius:999px;align-items:center;gap:5px;padding:4px 12px;font-size:.72rem;font-weight:600;display:inline-flex}.badge-easy{color:#16a34a;background:0 0;border:none;padding:0}.badge-medium{color:#d97706;background:0 0;border:none;padding:0}.badge-hard{color:#dc2626;background:0 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var(--border);width:100%;color:var(--text);font-family:var(--font-sans);border-radius:8px;padding:12px 16px;font-size:.95rem;transition:all .2s}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light);outline:none}.form-input::placeholder{color:var(--text-muted)}select.form-input{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-position:right 14px center;background-repeat:no-repeat;background-size:16px;border-radius:24px;padding-right:40px;transition:all .2s}select.form-input:hover{border-color:var(--border-strong);background-color:var(--bg)}[data-theme=dark] select.form-input{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 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(width<=900px){.questions-layout{grid-template-columns:1fr}}.questions-table{border-collapse:collapse;width:100%}.questions-table th,.questions-table td{text-align:left;border-bottom:1px solid var(--border);padding:14px 18px}.questions-table th{font-family:var(--font-sans);color:var(--text-sub);text-transform:uppercase;letter-spacing:.08em;background:var(--bg);font-size:.75rem;font-weight:600}.questions-table tbody tr{cursor:pointer;transition:background .12s}.questions-table tbody tr:hover{background:var(--bg)}.table-responsive{-webkit-overflow-scrolling:touch;width:100%;overflow-x:auto}.progress-bar-container{background:var(--border);border-radius:999px;width:100%;height:5px;margin-top:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--accent) 0%, #a855f7 100%);border-radius:999px;height:100%;transition:width .4s ease-out}.tab-list{border-bottom:1px solid 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slideIn{0%{opacity:0;transform:translate(110%)}to{opacity:1;transform:translate(0)}}.math-board{text-align:center;max-width:560px;margin:40px auto}.math-timer{font-size:1.3rem;font-weight:700;font-family:var(--font-display);color:var(--accent);margin-bottom:16px}.math-equation{font-family:var(--font-display);letter-spacing:-.03em;margin:28px 0;font-size:3.6rem;font-weight:800}.chart-container{width:100%;height:220px;margin:14px 0;position:relative}@keyframes correctFlash{0%{box-shadow:0 0 #16a34a66}to{box-shadow:0 0 0 16px #16a34a00}}@keyframes incorrectFlash{0%{box-shadow:0 0 #dc262666}to{box-shadow:0 0 0 16px #dc262600}}.flash-correct{animation:.45s ease-out correctFlash;border-color:#16a34a!important}.flash-incorrect{animation:.45s ease-out incorrectFlash;border-color:#dc2626!important}.sticky-note{background:var(--sticky-bg);color:var(--sticky-text);border-left:4px solid var(--sticky-border);border-radius:4px;padding:18px 20px;font-family:Caveat,cursive;font-size:1.3rem;line-height:1.35;transition:transform .2s,box-shadow .2s;position:relative;transform:rotate(-1.2deg);box-shadow:2px 6px 18px #0000001a,0 1px 2px #0000000f}.sticky-note:hover{transform:rotate(0)scale(1.01);box-shadow:3px 10px 28px #00000024}.sticky-note:before{content:"";background:var(--sticky-tape);width:54px;height:18px;position:absolute;top:-9px;left:33%;transform:rotate(1.5deg)}.section-dark{background:var(--bg-dark);color:var(--text-on-dark)}.section-divider{background:var(--accent);border-radius:2px;width:40px;height:3px;margin-bottom:16px}.footer{background:var(--bg-dark);color:var(--text-sub-dark);padding:64px 32px 32px}.footer-brand{font-family:var(--font-display);color:var(--text-on-dark);letter-spacing:-.03em;margin-bottom:12px;font-size:1.4rem;font-weight:800}.footer-tagline{color:var(--text-sub-dark);max-width:340px;font-size:.92rem;line-height:1.6}.footer-grid{max-width:var(--max-w);grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin:0 auto;display:grid}@media (width<=900px){.footer-grid{grid-template-columns:1fr 1fr}}@media (width<=560px){.footer-grid{grid-template-columns:1fr}}.footer-col-title{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:16px;font-size:.72rem;font-weight:600}.footer-link{color:var(--text-sub-dark);margin-bottom:10px;font-size:.88rem;transition:color .15s;display:block}.footer-link:hover{color:var(--text-on-dark)}.footer-bottom{max-width:var(--max-w);color:var(--text-muted);border-top:1px solid #ffffff12;justify-content:space-between;align-items:center;margin:48px auto 0;padding-top:24px;font-size:.8rem;display:flex}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}@keyframes bounceIn{0%{opacity:0;transform:translate(-50%,-50%)scale(.3)}55%{opacity:.85;transform:translate(-50%,-50%)scale(1.04)}75%{transform:translate(-50%,-50%)scale(.92)}to{opacity:1;transform:translate(-50%,-50%)scale(1)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.snake-container{flex-direction:column;gap:44px;padding:10px 24px;display:flex}.snake-row{gap:40px;display:flex}.snake-row-even{flex-direction:row}.snake-row-odd{flex-direction:row-reverse;justify-content:flex-end}.snake-item-wrapper{flex:1;min-width:0;max-width:calc(33.3333% - 26.6667px);display:flex;position:relative}.snake-arrow-side,.snake-arrow-down{background-color:var(--accent);position:absolute}.snake-arrow-side:after,.snake-arrow-down:after{content:"";border:solid 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(width<=768px){.snake-row{gap:16px;flex-direction:column!important}.snake-container{gap:16px}.snake-item-wrapper{max-width:100%}.snake-arrow-side,.snake-curve{display:none}}