:root {
  --primary-color: #08d9d6;
  --secondary-color: #ff2e63;
  --text-color: #ffffff;
  --background-color: #252a34;
  --container-color: #3a3f47;
  --shadow-color: rgba(0, 0, 0, 0.7);
}

body {
  font-family: 'Ubuntu', sans-serif;
  color: var(--text-color);
  background-color: var(--background-color);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3E%3Cpath fill='%239C92AC' fill-opacity='0.15' d='M1 3h1v1H1V3zm2-2h1v1H3V1z'%3E%3C/path%3E%3C/svg%3E");
  margin: 0;
  padding: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--container-color);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 2rem;
  text-shadow: 0 8px 20px var(--shadow-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 2px solid var(--primary-color);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow-color);
}

a:hover, a:focus {
  color: var(--secondary-color);
  border-bottom-color: var(--secondary-color);
  text-shadow: 0 6px 20px var(--shadow-color);
  transform: translateY(-2px);
}

strong {
  font-weight: 900;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.signature {
    text-align: right;
    margin-top: 2rem;
}