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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f8f9fa;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-container {
  background: white;
  padding: 50px 40px;
  border: 1px solid #e0e0e0;
  border-radius: 2px;
  width: 100%;
  max-width: 400px;
}

.logo {
  display: block;
  margin: 0 auto 40px;
  max-width: 150px;
  height: auto;
}

h1 {
  text-align: center;
  color: #2c3e50;
  margin-bottom: 30px;
  font-size: 24px;
  font-weight: 400;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #4a5568;
  font-size: 14px;
  font-weight: 500;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 2px;
  font-size: 15px;
  transition: border-color 0.2s;
  background: #ffffff;
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: #6b7280;
}

button {
  width: 100%;
  padding: 12px;
  background: #2c3e50;
  color: white;
  border: none;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 10px;
}

button:hover {
  background: #1a252f;
}

.error {
  background: #fee;
  color: #c33;
  padding: 12px;
  border-left: 3px solid #c33;
  margin-bottom: 20px;
  font-size: 14px;
}