:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a25;--bg-card-hover: #22222f;--text-primary: #f0f0f5;--text-secondary: #9595a8;--text-muted: #6b6b80;--accent: #FF6243;--accent-light: #FF8066;--accent-glow: rgba(255, 98, 67, .12);--green: #00d2a0;--yellow: #ffd93d;--red: #ff6b6b;--orange: #ff9f43;--border: #2a2a3a;--radius: 12px;--radius-lg: 16px}*{margin:0;padding:0;box-sizing:border-box}html{background:var(--bg-primary)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}nav{position:fixed;top:0;width:100%;z-index:100;background:#0a0a0fd9;backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 24px}.nav-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:64px}.logo{font-size:1.4rem;font-weight:800;color:var(--text-primary);text-decoration:none;letter-spacing:-.5px}.logo span{color:var(--accent-light)}.nav-links{display:flex;gap:28px;list-style:none}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--text-primary)}.hero{padding:140px 24px 80px;text-align:center;background:linear-gradient(180deg,var(--accent-glow) 0%,transparent 60%)}.hero h1{font-size:3.2rem;font-weight:800;line-height:1.15;letter-spacing:-1.5px;max-width:700px;margin:0 auto 20px}.hero h1 em{font-style:normal;color:var(--accent-light)}.hero p{color:var(--text-secondary);font-size:1.15rem;max-width:560px;margin:0 auto 36px}.search-bar{max-width:580px;margin:0 auto 16px;position:relative}.search-bar input{width:100%;padding:16px 24px 16px 52px;background:var(--bg-card);border:1px solid var(--border);border-radius:50px;color:var(--text-primary);font-size:1rem;outline:none;transition:border-color .2s,box-shadow .2s}.search-bar input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.search-bar input::placeholder{color:var(--text-muted)}.search-icon{position:absolute;left:20px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:1.1rem}.trust-bar{display:flex;justify-content:center;gap:32px;margin-top:40px;flex-wrap:wrap}.trust-item{color:var(--text-muted);font-size:.85rem;display:flex;align-items:center;gap:6px}.trust-item strong{color:var(--text-secondary)}.section{max-width:1200px;margin:0 auto;padding:60px 24px}.section-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:32px}.section-header h2{font-size:1.6rem;font-weight:700;letter-spacing:-.5px}.section-header a{color:var(--accent-light);text-decoration:none;font-size:.9rem;font-weight:500}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.category-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;text-align:center;text-decoration:none;color:var(--text-primary);transition:all .2s;cursor:pointer}.category-card:hover{background:var(--bg-card-hover);border-color:var(--accent);transform:translateY(-2px)}.category-emoji{font-size:2rem;margin-bottom:10px;display:block}.category-icon{width:36px;height:36px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;background:var(--accent-glow);border-radius:10px;color:var(--accent-light)}.category-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.category-card h3{font-size:.95rem;font-weight:600;margin-bottom:4px}.category-card p{color:var(--text-muted);font-size:.8rem}.course-list{display:flex;flex-direction:column;gap:16px}.course-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;transition:all .2s;text-decoration:none;color:inherit}.course-card:hover{background:var(--bg-card-hover);border-color:var(--accent)}.course-rank{font-size:1.6rem;font-weight:800;color:var(--accent-light);width:40px;text-align:center}.course-info h3{font-size:1.1rem;font-weight:600;margin-bottom:4px}.course-meta{display:flex;gap:16px;flex-wrap:wrap}.course-meta span{color:var(--text-secondary);font-size:.85rem}.course-tags{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}.tag{background:var(--accent-glow);color:var(--accent-light);padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:500}.tag.green{background:#00d2a01f;color:var(--green)}.tag.yellow{background:#ffd93d1f;color:var(--yellow)}.course-rating{text-align:right}.rating-score{font-size:1.5rem;font-weight:800;color:var(--green)}.rating-label{font-size:.75rem;color:var(--text-muted)}.stats-bar{background:var(--bg-secondary);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:40px 24px}.stats-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}.stat-number{font-size:2rem;font-weight:800;color:var(--accent-light)}.stat-label{color:var(--text-muted);font-size:.85rem;margin-top:4px}.cta-section{text-align:center;padding:80px 24px;background:linear-gradient(180deg,transparent 0%,var(--accent-glow) 100%)}.cta-section h2{font-size:2rem;font-weight:800;margin-bottom:16px}.cta-section p{color:var(--text-secondary);max-width:480px;margin:0 auto 28px}.cta-form{display:flex;gap:8px;max-width:440px;margin:0 auto}.cta-form input{flex:1;padding:14px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:.95rem;outline:none}.btn{padding:14px 28px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:background .2s;white-space:nowrap}.btn:hover{background:#e8553a}footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:48px 24px 32px}.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}.footer-brand p{color:var(--text-muted);font-size:.85rem;margin-top:12px;max-width:280px}.footer-col h4{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);margin-bottom:16px}.footer-col a{display:block;color:var(--text-muted);text-decoration:none;font-size:.9rem;margin-bottom:10px}.footer-col a:hover{color:var(--text-primary)}.footer-bottom{max-width:1200px;margin:32px auto 0;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--text-muted);font-size:.8rem}@media(max-width:768px){.hero h1{font-size:2.2rem}.nav-links{display:none}.course-card{grid-template-columns:1fr;gap:12px}.course-rank{font-size:1rem;width:28px;min-width:28px;height:28px;line-height:28px;background:var(--accent);color:#fff;border-radius:6px;text-align:center}.course-rating{text-align:left}.stats-inner{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:1fr 1fr}.cta-form{flex-direction:column}.trust-bar{gap:16px}}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-primary);cursor:pointer;padding:8px}@media(max-width:768px){.mobile-menu-btn{display:block}.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-secondary);flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--border);gap:12px}.nav-links.active{display:flex}}