:root {
    --bg-start: #111111;
    --bg-end: #051c2c;
    --accent1-start: #1f1e1e;
    --accent1-end: #115f81;
    --text-light: #313c4e;
  }
  body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--bg-start), var(--bg-end));
    color: var(--text-light);
    overflow-x: hidden;
    min-height: 100vh;
  }
  .accent-gradient {
    background: linear-gradient(45deg, var(--accent1-start), var(--accent1-end));
    background-size: 200% 200%;
    animation: neonShift 8s ease infinite;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  @keyframes neonShift {
    0%, 100% { background-position: 0% 50%; }
    50%       { background-position: 100% 50%; }
  }
  .card {
    backdrop-filter: blur(16px) saturate(180%);
    background-color: var(--card-bg);
    border: 1px solid rgba(105, 27, 27, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border-radius: 1rem;
    transition: transform 0.3s ease, background-color 0.3s ease;
  }
  .card:hover {
    transform: scale(1.04) translateY(-4px);
    background-color: rgba(53, 49, 70, 0.85);
  }
  .btn-blue, .btn-magenta {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  .btn-blue:hover, .btn-magenta:hover {
    transform: rotateX(8deg) translateY(-2px);
    box-shadow: 0 12px 24px rgba(77, 35, 35, 0.4);
  }
  .btn-blue {
    background: linear-gradient(90deg, #1c222c, #28344d);
    background-size: 200% 200%;
  }
  .btn-magenta {
    background: linear-gradient(90deg, #271b21, #1b111536);
    background-size: 200% 200%;
  }
  .btn-blue:hover  { background-position: 100% 0; }
  .btn-magenta:hover { background-position: 100% 0; }
  .plane-icon {
    width: 1.75rem;
    height: 1.75rem;
    animation: fly 4s ease-in-out infinite;
  }
  @keyframes fly {
    0%,100% { transform: translate(0,0) rotate(0deg); }
    50%     { transform: translate(6px,-4px) rotate(-6deg); }
  }
  .hero-img {
    transition: transform 0.5s ease;
  }
  .hero-img:hover {
    transform: translateY(-8px) scale(1.02);
  }