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

body {
  font-family: 'Graphik Schema', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: #1a1a1a;
  color: #e9e9e9;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 24px;
}

.login-card {
  background: #222222;
  border: 1px solid #333333;
  border-radius: 12px;
  padding: 48px 40px;
}

.login-card h1 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.login-card .subtitle {
  color: #888888;
  font-size: 14px;
  margin-bottom: 32px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#api-key {
  background: #1a1a1a;
  border: 1px solid #333333;
  border-radius: 8px;
  color: #e9e9e9;
  font-family: 'SF Mono', 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 150ms ease;
}

#api-key:focus {
  border-color: #4488ff;
}

#api-key::placeholder {
  color: #555555;
}

#submit-btn {
  background: #4488ff;
  border: none;
  border-radius: 8px;
  color: #ffffff;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 16px;
  transition: background 150ms ease;
}

#submit-btn:hover {
  background: #3377ee;
}

#submit-btn:active {
  background: #2266dd;
}

#submit-btn:disabled {
  background: #333333;
  color: #666666;
  cursor: not-allowed;
}

.error {
  color: #ff4444;
  font-size: 13px;
  text-align: center;
}