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

body {
  font-family: 'Helvetica Neue', sans-serif;
  background-color: #ffffff;
  color: #111;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  padding: 24px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: bold;
  font-size: 1.5rem;
}

.header-right {
  display: flex;
  align-items: center;
}

.socials-header {
  display: flex;
  gap: 12px;
  margin-left: 16px;
}

.socials-header a {
  color: #111;
  transition: opacity 0.3s;
}

.socials-header a:hover {
  opacity: 0.6;
}

.socials-header svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}

main h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

main p {
  font-size: 1.2rem;
  color: #555;
  max-width: 600px;
  margin-bottom: 24px;
}

.spinner {
  border: 4px solid #eee;
  border-top: 4px solid #111;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin-bottom: 24px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

footer {
  padding: 16px 24px;
  text-align: center;
  font-size: 0.9rem;
  color: #aaa;
}