:root {
  --xtreme-yellow: #FBBC00;  /* amarelo vibrante */
  --xtreme-dark-red: #67140F; /* vermelho escuro */
  --xtreme-orange-red: #EA5925; /* laranja avermelhado */
  --xtreme-white: #ffffff;
  --xtreme-silver: rgba(192, 192, 192, 0.2); /* prata leve com transparência */
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background: url('img/background.jpg') no-repeat center center fixed;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: var(--xtreme-white);
}

.container {
  background-color: var(--xtreme-silver);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  width: 90%;
  max-width: 400px;
}

.logo {
  max-width: 120px;
  margin-bottom: 1rem;
}

h1 {
  color: var(--xtreme-white);
  margin-bottom: 1.5rem;
}

button {
  display: block;
  width: 100%;
  margin: 0.5rem 0;
  padding: 1rem;
  background-color: var(--xtreme-dark-red);
  color: var(--xtreme-white);
  border: none;
  border-radius: 30px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background-color: var(--xtreme-yellow);
  color: var(--xtreme-dark-red);
}