:root{--black: #000000;--white: #ffffff;--gray-dark: #222222;--gray-medium: #444444;--gray-light: #f0f0f0;--transition: all .4s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--black);line-height:1.6;overflow-x:hidden}.full-section{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;position:relative;scroll-snap-align:start}.full-section:nth-child(odd){background-color:var(--white)}.full-section:nth-child(2n){background-color:var(--gray-light)}.section-content{max-width:900px;margin:0 auto}.section-title{font-size:3.5rem;font-weight:800;margin-bottom:3rem;line-height:1.1;color:var(--black)}.section-body{font-size:1.25rem}ul,ol{list-style:none}.list-heading{font-size:2rem;font-weight:700;margin:2rem 0 .5rem;color:var(--gray-dark)}.list-heading+p{margin-left:1rem;color:var(--gray-medium)}.navbar{position:fixed;top:0;left:0;width:100%;display:flex;justify-content:space-between;align-items:center;padding:1.5rem 3rem;background-color:var(--white);z-index:1000;box-shadow:0 2px 10px #0000001a}.logo{font-size:1.5rem;font-weight:800;letter-spacing:-1px}.nav-links{display:flex;gap:2rem}.nav-links a{color:var(--black);text-decoration:none;font-weight:500;font-size:.95rem;text-transform:uppercase;letter-spacing:1px;transition:var(--transition)}.nav-links a:hover{opacity:.7}.hero{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 2rem;background-color:var(--gray-light)}.hero-title{font-size:4.5rem;font-weight:900;line-height:1;margin-bottom:2rem;max-width:900px}.hero-subtitle{font-size:1.5rem;max-width:600px;margin-bottom:3rem;color:var(--gray-medium)}.cta-button{background:transparent;color:var(--black);padding:1rem 2rem;border:2px solid var(--black);font-size:1.1rem;font-weight:600;text-decoration:none;transition:var(--transition)}.cta-button:hover{background:var(--black);color:var(--white)}footer{text-align:center;padding:3rem;background:var(--black);color:var(--white)}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:3.5rem;height:3.5rem;background:var(--black);color:var(--white);border:none;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:100;opacity:.7;transition:var(--transition)}.back-to-top:hover{opacity:1;transform:translateY(-5px)}@media (max-width: 768px){.section-title{font-size:2.5rem}.list-heading{font-size:1.5rem}.hero-title{font-size:3rem}.hero-subtitle{font-size:1.2rem}.navbar{padding:1rem}.nav-links{gap:1rem}}@media (max-width: 480px){.section-title{font-size:2rem;margin-bottom:1.5rem}.hero-title{font-size:2.2rem}.full-section{padding:1rem;height:auto;min-height:100vh}}