:root{--primary: #15c39a;--primary-dark: #0ea583;--text: #1a1a1a;--text-muted: #666;--bg: #ffffff;--bg-alt: #f8fafb;--border: #e5e7eb;--max-width: 1100px;--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text)}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}header{border-bottom:1px solid var(--border);padding:1rem 0}header nav{display:flex;justify-content:space-between;align-items:center}.logo{font-weight:700;font-size:1.2rem;text-decoration:none;color:var(--primary)}.nav-links{display:flex;align-items:center}.hero{background:var(--bg-alt);padding:4rem 0;text-align:center}.hero h1{font-size:2.5rem;font-weight:700;margin-bottom:1rem}.hero p{font-size:1.2rem;color:var(--text-muted);margin-bottom:2rem}.widget-placeholder{background:#fff;border:2px solid var(--primary);border-radius:var(--radius);padding:3rem;max-width:700px;margin:0 auto;text-align:center}.widget-placeholder p{font-size:1.1rem;margin-bottom:.75rem;color:var(--text-muted)}.cta-button{display:inline-block;background:var(--primary);color:#fff;padding:.75rem 1.75rem;border-radius:24px;text-decoration:none;font-weight:600;font-size:1rem;transition:background .2s}.cta-button:hover{background:var(--primary-dark)}.cta-large{padding:1rem 2.5rem;font-size:1.1rem;margin-top:1.5rem}.grammarly-cta{background:linear-gradient(135deg,#15c39a11,#15c39a22);border:1px solid var(--primary);border-radius:var(--radius);padding:2rem;margin:3rem 0;text-align:center}.grammarly-cta h3{font-size:1.5rem;margin-bottom:.5rem}.grammarly-cta p{color:var(--text-muted);margin-bottom:1.5rem}.features{padding:4rem 0}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:2rem}.feature-card{background:var(--bg-alt);border-radius:var(--radius);padding:1.5rem;text-align:center}.feature-card h3{margin-bottom:.5rem;color:var(--primary)}.page-content{max-width:800px;margin:0 auto;padding:3rem 1.5rem}.page-content h1{font-size:2rem;margin-bottom:1.5rem}.page-content h2{font-size:1.4rem;margin:2rem 0 .75rem;color:var(--primary-dark)}.page-content p{line-height:1.7;margin-bottom:1rem;color:var(--text)}.page-content ul,.page-content ol{margin:1rem 0 1rem 1.5rem;line-height:1.7}.page-content li{margin-bottom:.5rem}.mistake-example{background:#fff3f3;border-left:3px solid #e55;padding:.75rem 1rem;border-radius:4px;margin:.5rem 0;font-family:monospace}.correct-example{background:#f0fff8;border-left:3px solid var(--primary);padding:.75rem 1rem;border-radius:4px;margin:.5rem 0;font-family:monospace}.lang-dropdown-wrapper{position:relative}.lang-icon-btn{background:none;border:none;cursor:pointer;font-size:.9rem;color:var(--text);padding:.25rem .5rem;border-radius:6px;white-space:nowrap}.lang-icon-btn:hover{color:var(--primary)}.lang-dropdown{position:absolute;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 16px #0000001a;z-index:100;min-width:140px;padding:.25rem 0}.lang-dropdown-item{display:block;width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:.5rem 1rem;font-size:.9rem;color:var(--text)}.lang-dropdown-item:hover{background:var(--bg-alt);color:var(--primary)}.lang-dropdown-item.active{color:var(--primary);font-weight:600}nav a{text-decoration:none;color:var(--text-muted);margin-left:1.5rem;font-size:.9rem}nav a:hover{color:var(--primary)}footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:2rem 0;margin-top:4rem;text-align:center;color:var(--text-muted);font-size:.9rem}@media(max-width:768px){.hero h1{font-size:1.75rem}.features-grid{grid-template-columns:1fr}.nav-links a{display:none}}.edu-section{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:5rem 0}.edu-section--alt{background:var(--bg-alt)}.edu-hero{background:var(--bg-alt);padding:0;justify-content:flex-start}.section-num{font-size:5rem;font-weight:800;color:var(--primary);opacity:.15;line-height:1}.section-title{font-size:2.2rem;font-weight:700;margin-bottom:.5rem}.section-subtitle{color:var(--text-muted);font-size:1.1rem;margin-bottom:2.5rem}.mistake-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.mistake-card{background:#fff;border-radius:var(--radius);padding:1.5rem;border:1px solid var(--border)}.mistake-card h3{font-size:1rem;font-weight:700;margin-bottom:1rem}.mistake-card .explanation{font-size:.875rem;color:var(--text-muted);margin-top:.75rem;line-height:1.5}.edu-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.edu-card{background:#fff;border-radius:var(--radius);padding:1.75rem;border:1px solid var(--border)}.edu-card h3{font-size:1.05rem;font-weight:700;color:var(--primary-dark);margin-bottom:.75rem}.edu-card p{font-size:.9rem;line-height:1.6;color:var(--text-muted)}.tips-list{display:flex;flex-direction:column;gap:1.5rem;max-width:720px}.tip-item{display:flex;gap:1.5rem;align-items:flex-start}.tip-num{font-size:2.5rem;font-weight:800;color:var(--primary);opacity:.3;line-height:1;min-width:3rem}.tip-item h3{font-size:1.1rem;font-weight:700;margin-bottom:.4rem}.tip-item p{font-size:.9rem;line-height:1.6;color:var(--text-muted)}.scroll-indicator{margin-top:3rem;font-size:1.5rem;color:var(--primary);animation:bounce 2s infinite;cursor:pointer}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(8px)}}@media(max-width:768px){.mistake-grid,.edu-grid{grid-template-columns:1fr}.section-title{font-size:1.6rem}.edu-section{padding:3rem 0;min-height:unset}}