* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  font-family: 'Inter', sans-serif;
  background-image: url('assets/background.jpg');
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
}

.viewport {
  position: relative;
  height: 100vh;
  height: 100lvh;
}

.site-header {
  position: sticky;
  top: 24px;
  display: flex;
  justify-content: center;
}

.logo {
  height: 64px;
  width: auto;
}

.contact {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #1a1aff;
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
}

.contact:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  body {
    background-image: none;
    height: auto;
    min-height: 100vh;
    min-height: 100lvh;
    padding-bottom: 48px;
  }

  body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100lvh;
    background-image: url('assets/background-mobile.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    z-index: -2;
  }

  body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 80px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
    z-index: -1;
  }

  .site-header {
    position: fixed;
    top: 24px;
    left: 0;
    right: 0;
  }

  .logo {
    height: 44px;
  }

  .contact {
    position: static;
    display: block;
    width: 100%;
    left: auto;
    bottom: auto;
    transform: none;
    text-align: center;
    margin: 0;
    color: #f6ff00;
  }
}