:root {
    --aeiron-one: #6ecbff;    /* Light Sky Blue */
    --aeiron-two: #3fa9f5;    /* Bright Cyan Blue */
    --aeiron-three: #3f87ff;  /* Vivid Royal Blue */
    --aeiron-four: #2b59ff;   /* Deep Aeiron Blue */
  }
  
  /* Gradient text helper */
  .gradient-text {
    background: linear-gradient(
      90deg,
      var(--aeiron-one),
      var(--aeiron-two),
      var(--aeiron-three),
      var(--aeiron-four)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  /* Reset & Layout */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body,
  html {
    width: 100%;
    height: 100%;
    color: #ffffff;
    font-family: "Exo 2", sans-serif;
  }
  
  body {
    font-size: 1.1rem;
    line-height: 1.7;
    background: #000; /* all other sections pure black */
  }
  
  /* Section Defaults */
  section {
    padding: 100px 10%;
    text-align: center;
  }
  
  h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    background: linear-gradient(
      90deg,
      var(--aeiron-one),
      var(--aeiron-two),
      var(--aeiron-three),
      var(--aeiron-four)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  p {
    font-size: 1.1rem;
    color: #ffffff;
    line-height: 1.6;
  }
  
  /* Hero wrapper */
  .hero-section {
    position: relative;
    height: 100svh; /* stable on iOS Safari */
    width: 100%;
    overflow: hidden;
    background: #000; /* fallback */
  }
  
  /* Vanta background */
  #vanta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
  }
  
  /* Hero content above Vanta */
  .hero {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  
  /* Fade into next section */
  .hero-section::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 140px;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, #000 100%);
    z-index: 1;
  }
  
  .hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    background: linear-gradient(
      90deg,
      var(--aeiron-one),
      var(--aeiron-two),
      var(--aeiron-three),
      var(--aeiron-four)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .hero p {
    margin-top: 10px;
    font-size: 1.4rem;
  }
  
  .cta-btn {
    margin-top: 25px;
    padding: 12px 25px;
    border-radius: 25px;
    background: linear-gradient(
      90deg,
      var(--aeiron-one),
      var(--aeiron-two),
      var(--aeiron-three),
      var(--aeiron-four)
    );
    color: #fff;
    font-weight: bold;
    text-decoration: none;
    transition: opacity 0.3s ease;
  }
  .cta-btn:hover {
    opacity: 0.85;
  }
  
  .highlight {
    font-weight: 600;
    font-style: italic;
  }
  
  /* About */
  .about {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    margin: 40px auto;
    height: 50vh;
    max-height: none;
  }
  .about p {
    font-size: 1.6rem;
  }
  
  /* Orb */
  .orb-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 100px 0;
    background: #000;
  }
  
  #donut {
    width: 300px;
    height: 300px;
  } 
  
  /* Benefits */
  .benefits {
    height: auto;
    max-height: none;
  }
  
  .benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
  }
  
  .benefit-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 25px;
    border-radius: 12px;
    transition: transform 0.3s ease;
  }
  .benefit-card:hover {
    transform: translateY(-5px);
  }
  
  /* Contact */
  .contact {
    padding: 120px 10%;
    text-align: center;
    height: auto;
    max-height: none;
  }
  .contact form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 700px;
    width: 100%;
    margin: 40px auto;
    padding: 40px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 15px;
  }
  .form-row {
    display: flex;
    gap: 20px;
  }
  .form-row input {
    flex: 1;
  }
  .contact input,
  .contact textarea {
    padding: 18px;
    font-size: 1.1rem;
    border-radius: 10px;
    border: none;
    outline: none;
    background: #1f2833;
    color: #fff;
  }
  .contact button {
    padding: 16px;
    font-size: 1.1rem;
    border-radius: 30px;
    border: none;
    background: linear-gradient(
      90deg,
      var(--aeiron-one),
      var(--aeiron-two),
      var(--aeiron-three),
      var(--aeiron-four)
    );
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
  }
  .contact button:hover {
    opacity: 0.85;
  }
  
  /* Footer */
  .footer {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #c5c6c7;
  }
  
  /* Responsive */
  @media (max-width: 1024px) {
    .hero h1 { font-size: 3.5rem; }
    .hero p { font-size: 1.2rem; }
    .benefit-grid { grid-template-columns: repeat(2, 1fr); }
    .about p { font-size: 1.3rem; }
  }
  @media (max-width: 768px) {
    section { padding: 60px 6%; }
    .hero h1 { font-size: 2.8rem; }
    .hero p { font-size: 1.1rem; }
    .benefit-grid { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; gap: 15px; }
    .about { height: auto; }
    .benefits, .contact { max-height: none; }
    .contact form { padding: 20px; }
  }
  @media (max-width: 480px) {
    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    .cta-btn { padding: 10px 18px; font-size: 0.9rem; }
  }