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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  background: #fff;
  border-radius: 16px;
  padding: 40px 30px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.logo {
  width: 140px;
  height: 140px;
  margin-bottom: 20px;
  object-fit: contain;
}

h1 {
  font-size: 24px;
  color: #222;
  margin-bottom: 10px;
}

.welcome-text {
  color: #555;
  font-size: 15px;
  margin-bottom: 30px;
  line-height: 1.4;
}

.social-buttons {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 30px;
}
.social-buttons form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.social-btn {
  padding: 16px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.social-btn:active {
  transform: scale(0.97);
}

.social-btn.instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.social-btn.facebook {
  background: #1877f2;
}

.social-btn.youtube {
  background: #ff0000;
}

.social-btn.tiktok {
  background: #000000;
}

.icon {
  font-size: 20px;
}

.continue-btn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  background: var(--primary-color);
  color: #fff;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.continue-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.continue-btn:not(:disabled):active {
  transform: scale(0.98);
}

@media (max-width: 480px) {
  .container {
    padding: 30px 20px;
  }

  h1 {
    font-size: 20px;
  }
}