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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 400px;
  margin: 50px auto;
  padding: 40px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
  margin-bottom: 20px;
  font-size: 28px;
}

.button-group {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.button {
  display: inline-block;
  padding: 12px 24px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background: white;
  color: #333;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
}

.button:hover {
  background: #f5f5f5;
}

.button-primary {
  background: #0066cc;
  color: white;
  border-color: #0066cc;
}

.button-primary:hover {
  background: #0052a3;
}

.button-google {
  background: #4285f4;
  color: white;
  border-color: #4285f4;
}

.button-google:hover {
  background: #357ae8;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input {
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

input:focus {
  outline: none;
  border-color: #0066cc;
}

.divider {
  text-align: center;
  margin: 20px 0;
  color: #999;
  position: relative;
}

.divider::before,
.divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: #ddd;
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

.text-center {
  text-align: center;
  margin-top: 20px;
}

.text-muted {
  color: #666;
  font-size: 14px;
}

.error {
  padding: 12px;
  background: #fee;
  color: #c33;
  border-radius: 4px;
  margin-bottom: 15px;
}

.hidden {
  display: none;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid #eee;
}

.content {
  padding: 20px 0;
}