:root {
  --accent: #f97316;
  --accent-dark: #ea580c;
  --bg: #f9fafb;
  --text: #1f2937;
  --muted: #6b7280;
  --radius: 12px;
  --max-width: 420px;
}

body {
  background: var(--bg);
  font-family: 'Inter', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
}

.login-container {
  width: 100%;
  max-width: var(--max-width);
  padding: 1rem;
}

.login-card {
  background: #fff;
  padding: 2.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.login-card h1 {
  font-size: 1.75rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 2rem;
}

.form-group {
  text-align: left;
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #d1d5db;
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-primary {
  display: block;
  width: 100%;
  background: linear-gradient(120deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-weight: 600;
  padding: 0.75rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.alert {
  padding: 0.75rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.alert.error {
  background: #fee2e2;
  color: #b91c1c;
}

.alert.success {
  background: #dcfce7;
  color: #166534;
}

@media (max-width: 500px) {
  .login-card {
    padding: 2rem 1.5rem;
  }

  .login-card h1 {
    font-size: 1.5rem;
  }
}