* {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
  background: #f9fafb;
  color: #1f2937;
}

.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  background: #ffffff;
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.auth-card h1 {
  margin: 0 0 0.5rem;
  font-size: 1.8rem;
}

.auth-card p {
  margin-bottom: 2rem;
  color: #6b7280;
}

.auth-card label {
  font-weight: 600;
  font-size: 0.9rem;
}

.auth-card input {
  width: 100%;
  padding: 0.75rem;
  margin-top: 0.4rem;
  margin-bottom: 1.2rem;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  font-size: 1rem;
}

.auth-card input:focus {
  outline: none;
  border-color: #2563eb;
}

.auth-card button {
  width: 100%;
  padding: 0.8rem;
  background: #111827;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.auth-card button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
}

.auth-footer a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 600;
}

.error {
  color: #dc2626;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}