:root{--primary: #0d6efd;--dark: #222;--text: #555;--bg: #f4f7f6}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Arial,sans-serif;background-color:var(--bg);color:var(--dark);line-height:1.6}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#fff;box-shadow:0 2px 5px #0000000d;position:sticky;top:0;z-index:100}.logo{font-size:1.6rem;font-weight:800;color:var(--primary);letter-spacing:-.5px}.nav-links{display:flex;align-items:center}.nav-links a{margin-left:1.4rem;text-decoration:none;font-weight:600;color:var(--text);transition:.2s ease}.nav-links a:hover{color:var(--primary)}.btn-primary{background-color:var(--primary);color:#fff!important;padding:.7rem 1.3rem;border-radius:6px;transition:background-color .3s}.btn-primary:hover{background-color:#0b5ed7;opacity:1}.menu-btn{display:none;background:none;border:none;font-size:1.6rem;cursor:pointer;color:var(--dark)}@media(max-width:768px){.menu-btn{display:block}.nav-links{position:absolute;top:70px;right:0;background:#fff;width:100%;display:none;flex-direction:column;padding:1rem 0;box-shadow:0 3px 10px #0000001a}.nav-links.active{display:flex}.nav-links a{margin:.7rem 0;text-align:center}}.hero{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:5rem 1.5rem;text-align:center;background:linear-gradient(to bottom,#fff,#f4f7f6)}.hero h1{font-size:2.8rem;font-weight:800;max-width:900px;line-height:1.2;color:#111}.hero h1 span{color:var(--primary)}.hero p{font-size:1.25rem;margin:1.5rem 0 2.5rem;color:var(--text);max-width:750px}.cta-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem}.cta-buttons a{display:inline-block;padding:1rem 2.5rem;font-size:1.1rem;text-decoration:none;border-radius:8px;font-weight:700;transition:all .2s ease}.cta-register{background-color:var(--primary);color:#fff;box-shadow:0 4px 6px #0d6efd33}.cta-register:hover{background-color:#0b5ed7;transform:translateY(-2px)}.cta-login{background-color:#fff;color:var(--dark);border:1px solid #ddd}.cta-login:hover{background-color:#f8f9fa;border-color:#ccc}.features{padding:4rem 2rem;background-color:#fff}.features h2{text-align:center;font-size:2.2rem;margin-bottom:3rem;font-weight:700}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:2.5rem;max-width:1100px;margin:auto}.feature-box{background:#f8f9fa;padding:2.5rem 2rem;border-radius:12px;text-align:center;transition:transform .3s,box-shadow .3s;border:1px solid #eee}.feature-box:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0000000d;border-color:var(--primary)}.feature-box i{font-size:2.5rem;color:var(--primary);margin-bottom:1.2rem}.feature-box h3{margin-bottom:.8rem;font-size:1.25rem;color:#333}.feature-box p{color:#666;line-height:1.6rem;font-size:.95rem}@media(max-width:768px){.hero{padding:3rem 1.5rem}.hero h1{font-size:2.2rem}.hero p{font-size:1.1rem}.feature-grid{gap:1.5rem}}