:root {
    --bg: #0e1525;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.1);
    --text: #ffffff;
    --muted: #cbd5e1;
    --accent: #4ade80; /* Emerald green accent */
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
  }
  
  .background {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 60%);
    animation: move 30s linear infinite;
    z-index: 0;
  }
  
  @keyframes move {
    0% { transform: translate(0, 0); }
    50% { transform: translate(-25%, -25%); }
    100% { transform: translate(0, 0); }
  }
  
  .topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--border);
  }
  
  .topbar .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .topbar span {
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
  }
  
  .topbar nav a {
    color: var(--muted);
    text-decoration: none;
    margin-left: 1rem;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    transition: color 0.3s;
  }
  
  .topbar nav a:hover {
    color: var(--accent);
  }
  
  .topbar nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
  }
  
  .topbar nav a:active::after {
    width: 120px;
    height: 120px;
  }
  
  .topbar nav a.active {
    color: var(--accent);
    font-weight: 600;
  }
  
  header {
    padding: 4rem 1rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
  }
  
  header h1 {
    font-size: 3rem;
    color: var(--text);
  }
  
  header p {
    color: var(--muted);
    font-size: 1.25rem;
  }
  
  h2 {
    color: var(--text);
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .intro, .features, .contact-form, footer {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    text-align: center;
    position: relative;
    z-index: 1;
  }
  
  .features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .feature {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .feature:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  }
  
  .feature h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
  }
  
  .feature p {
    color: var(--muted);
  }
  
  .contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  }
  
  .contact-form p {
    color: var(--muted);
    margin-bottom: 1rem;
  }
  
  form {
    display: flex;
    flex-direction: column;
  }
  
  form input, form select, form textarea {
    width: 100%;
    padding: 0.75rem;
    margin: 0.5rem 0;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    backdrop-filter: blur(4px);
    appearance: none;
    font-family: 'Outfit', sans-serif;
  }
  
  form select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg fill='%23cbd5e1' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414L10 13.414l-4.707-4.707a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2rem;
  }
  
  form textarea {
    resize: vertical;
  }
  
  form button {
    background: var(--accent);
    color: #0f172a;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 1rem;
    transition: background 0.3s ease, transform 0.2s ease;
  }
  
  form button:hover {
    background: #22c55e;
    transform: translateY(-2px);
  }
  
  form button:active {
    transform: scale(0.95);
  }
  
  footer {
    text-align: center;
    color: var(--muted);
    font-size: 0.875rem;
    padding: 2rem 1rem;
  }
  
  @media (max-width: 600px) {
    header h1 {
      font-size: 2rem;
    }
  
    .feature h3 {
      font-size: 1.1rem;
    }
  
    .topbar .container {
      flex-direction: row;
      justify-content: center;
      flex-wrap: wrap;
    }
  
    .topbar nav a {
      margin: 0 0.25rem;
    }
  }