:root {
    --background: #000000;
    --text: #ffffff;
    --accent: #ffffff;
    --surface: rgba(17, 17, 17, 0.9);
    --border: rgba(255, 255, 255, 0.1);
   }
   
   * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
   }
   
   body {
    font-family: 'Inter', sans-serif;
    background: var(--background);
    color: var(--text);
    min-height: 100vh;
    position: relative;
   }
   
   .container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 2rem;
   }
   
   nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--surface);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 4rem;
   }
   
   .logo {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
   }
   
   .nav-links {
    display: flex;
    gap: 1.5rem;
   }
   
   .nav-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 1.2rem;
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    transition: all 0.2s ease;
   }
   
   .nav-links a:hover {
    background: rgba(255, 255, 255, 0.1);
   }
   
   .sign-up {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s ease;
   }
   
   .sign-up:hover {
    background: rgba(255, 255, 255, 0.1);
   }
   
   .hero {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
   }
   
   h1 {
    font-size: 4.5rem;
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -2.5px;
    text-align: center;
   }
   
   h1 span {
    display: block;
   }
   
   .text-accent {
    color: rgba(255, 255, 255, 0.6);
    font-size: 3rem;
    margin-top: 1rem;
   }
   
   .grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.05;
    background-image: 
      linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
   }
   
   @media (max-width: 768px) {
    .nav-links {
      display: none;
    }
    
    h1 {
      font-size: 3rem;
    }
    
    .text-accent {
      font-size: 2rem;
    }
   }