*{box-sizing:border-box}body{background:var(--bg-gradient);color:var(--text-color);text-align:center;min-height:100vh;transition:var(--theme-transition);margin:0;padding:0;font-family:Poppins,Inter,Arial,sans-serif}.navbar{background:var(--navbar-bg);box-shadow:var(--card-shadow);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--card-border);z-index:100;transition:var(--theme-transition);justify-content:space-between;align-items:center;padding:15px 20px;display:flex;position:relative}.logo{color:var(--logo-color);transition:var(--theme-transition);flex-shrink:0;font-size:1.8rem;font-weight:700}.logo a{color:inherit;font-weight:700;text-decoration:none}.navbar ul{margin:0;padding:0;list-style:none;display:flex}.navbar ul li{margin:0 15px}.navbar ul li a{color:var(--nav-link);transition:var(--theme-transition);font-size:1.2rem;text-decoration:none}.navbar ul li a:hover,.navbar ul li a:focus{color:var(--nav-link-hover);outline:2px solid var(--nav-link-hover);outline-offset:2px;border-radius:2px}.buttons{flex-shrink:0;gap:8px;display:flex}.buttons button{background:var(--btn-primary-bg);color:#fff;cursor:pointer;transition:var(--theme-transition);border:none;border-radius:5px;padding:10px 15px;font-size:1rem}.buttons button a{color:#fff;text-decoration:none}.buttons button:hover{background:var(--btn-primary-hover)}.buttons button.a11y-btn{color:var(--text-muted);border:1px solid var(--border-color);cursor:pointer;transition:var(--theme-transition);background:0 0;border-radius:5px;padding:10px 15px;font-size:.9rem}.buttons button.a11y-btn:hover{background:var(--btn-secondary-bg);color:var(--text-color)}.buttons button.a11y-btn:focus-visible{outline:2px solid var(--accent-color);outline-offset:2px}.theme-btn{background:var(--btn-secondary-bg);color:var(--text-color);border:1px solid var(--border-color);cursor:pointer;transition:var(--theme-transition);border-radius:5px;justify-content:center;align-items:center;gap:5px;padding:10px 15px;font-size:1rem;font-weight:700;display:flex}.theme-btn:hover{background:var(--btn-secondary-hover);box-shadow:var(--card-shadow);transform:translateY(-1px)}.theme-btn:focus-visible{outline:2px solid var(--accent-color);outline-offset:2px}.hamburger{cursor:pointer;z-index:200;background:0 0;border:none;flex-direction:column;justify-content:space-between;width:28px;height:20px;padding:0;display:none}.hamburger span{background:var(--text-color);border-radius:3px;width:100%;height:3px;transition:transform .3s,opacity .3s;display:block}.hamburger.is-open span:first-child{transform:translateY(8px)rotate(45deg)}.hamburger.is-open span:nth-child(2){opacity:0}.hamburger.is-open span:nth-child(3){transform:translateY(-9px)rotate(-45deg)}.hero{justify-content:center;align-items:center;padding:60px 20px;display:flex}.hero-content{text-align:left;max-width:500px}.hero h1{text-shadow:var(--hero-title-shadow);transition:var(--theme-transition);font-size:2.5rem}.hero h2{color:var(--hero-subtitle-color);transition:var(--theme-transition);font-size:2rem}.hero p{color:var(--text-muted);transition:var(--theme-transition);font-size:1.2rem}.cta-buttons{margin-top:20px}.cta{background:var(--btn-primary-bg);color:#fff;cursor:pointer;transition:var(--theme-transition);border:none;border-radius:8px;margin:5px;padding:12px 18px;font-size:1rem}.cta:hover{background:var(--btn-primary-hover);transform:translateY(-2px)}.cta a{color:inherit;font-weight:700;text-decoration:none}.hero-image img{filter:drop-shadow(0 0 15px #00ffff4d);border-radius:10px;width:400px;max-width:100%}@media (width<=768px){.hamburger{display:flex}.navbar nav{background:var(--navbar-bg);box-shadow:var(--card-shadow);z-index:99;-webkit-backdrop-filter:blur(10px);padding:12px 0;display:none;position:absolute;top:100%;left:0;right:0}.navbar nav.is-open{display:block}.navbar ul{flex-direction:column;align-items:center;gap:0}.navbar ul li{width:100%;margin:0}.navbar ul li a{text-align:center;border-bottom:1px solid var(--border-color);padding:12px 20px;font-size:1.1rem;display:block}.buttons{display:none}.hero{text-align:center;flex-direction:column}.hero-content{text-align:center}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}html[data-reduced-motion=true] *{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}html[data-font-scale=sm]{font-size:16px}html[data-font-scale=lg]{font-size:18px}html[data-font-scale=xl]{font-size:20px}.explanation-panel{border:1px solid var(--border-color);background:#ffffff08;border-radius:10px;margin-top:10px;padding:12px 14px}.explanation-title{margin-bottom:6px;font-weight:900}.explanation-body{color:var(--text-muted);white-space:pre-wrap;line-height:1.55}.explanation-correct{background:#10b98114;border-color:#10b98180}.explanation-wrong{background:#ef444414;border-color:#ef444480}.section-eyebrow{letter-spacing:.14em;text-transform:uppercase;color:var(--accent-color);margin-bottom:10px;font-size:.75rem;font-weight:700;display:block}.features-strip{text-align:center;max-width:1100px;margin:0 auto;padding:20px 20px 70px}.features-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:6px;display:grid}.feature-card{background:var(--card-bg);border:1px solid var(--card-border);box-shadow:var(--card-shadow);text-align:center;transition:var(--theme-transition), transform .2s ease, border-color .2s ease;border-radius:14px;padding:28px 18px}.feature-card:hover{border-color:var(--accent-color);transform:translateY(-4px)}.feature-icon{background:#38bdf81f;border-radius:50%;justify-content:center;align-items:center;width:46px;height:46px;margin:0 auto 14px;display:flex}.feature-icon i{color:var(--accent-color);font-size:1.25rem}.feature-card h3{color:var(--text-color);margin:0 0 6px;font-size:1.05rem}.feature-card p{color:var(--text-muted);margin:0;font-size:.88rem;line-height:1.5}.product-preview{text-align:center;max-width:820px;margin:0 auto;padding:0 20px 70px}.product-preview h2{color:var(--text-color);margin:0 0 22px;font-size:1.5rem}.browser-frame{border:1px solid var(--card-border);box-shadow:var(--card-shadow);text-align:left;border-radius:14px;overflow:hidden}.browser-frame-bar{background:var(--btn-secondary-bg);border-bottom:1px solid var(--card-border);align-items:center;gap:7px;padding:10px 14px;display:flex}.browser-dot{border-radius:50%;width:10px;height:10px;display:inline-block}.browser-dot-red{background:#ef4444}.browser-dot-yellow{background:#f59e0b}.browser-dot-green{background:#10b981}.browser-frame-url{color:var(--text-muted);margin-left:10px;font-family:monospace;font-size:.78rem}.browser-frame img{width:100%;display:block}.stats-section{justify-content:center;align-items:center;gap:40px;max-width:700px;margin:0 auto;padding:0 20px 70px;display:flex}.stat-item{flex-direction:column;align-items:center;display:flex}.stat-number{color:var(--text-color);font-size:2rem;font-weight:700}.stat-label{color:var(--text-muted);margin-top:4px;font-size:.85rem}.stat-divider{background:var(--border-color);width:1px;height:40px}#practiceSessionsRecommendation{color:var(--accent-color);margin-top:4px}#practiceSessionsRecommendationSub{line-height:1.5}.final-cta{text-align:center;max-width:600px;margin:0 auto;padding:50px 20px 90px;position:relative}.final-cta:before{content:"";z-index:-1;background:radial-gradient(circle,#38bdf81f,#0000 70%);position:absolute;inset:0}.final-cta h2{color:var(--text-color);margin:0 0 8px;font-size:1.5rem}.final-cta p{color:var(--text-muted);margin:0 0 22px;font-size:.95rem}.cta-large{padding:14px 36px;font-size:1.1rem;font-weight:700;box-shadow:0 0 20px #38bdf840}@media (width<=768px){.features-grid{grid-template-columns:1fr 1fr}.stats-section{gap:24px}}@media (width<=480px){.features-grid{grid-template-columns:1fr}.stats-section{flex-direction:column;gap:20px}.stat-divider{width:40px;height:1px}}:focus-visible{outline:3px solid var(--accent-color,#38bdf8);outline-offset:3px}