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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

.container {
  max-width: 600px;
  padding: 20px;
}

.logo {
  width: 240px;
  margin-bottom: 20px;
}

h1 {
  font-size: 2em;
  margin-bottom: 10px;
  color: #00d8ff;
}

.tagline {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #cceeff;
}

.loader {
  border: 6px solid #f3f3f3;
  border-top: 6px solid #00d8ff;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 30px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.footer {
  font-size: 0.8em;
  color: #aaa;
}