body {
  background: linear-gradient(135deg, #1a4a1e 0%, #2E7D32 50%, #1976D2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-logo {
  text-align: center;
  margin-bottom: 30px;
  color: white;
}

.login-logo .logo-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 12px;
}

.login-logo h1 {
  font-size: 24px;
  font-weight: 600;
}

.login-card {
  background: white;
  border-radius: 12px;
  padding: 36px 32px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.login-card h2 {
  font-size: 20px;
  margin-bottom: 24px;
  text-align: center;
  color: var(--text-dark);
}

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

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 15px;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}

.login-btn {
  width: 100%;
  padding: 13px;
  background: var(--primary-green);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: var(--primary-green-dark);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error-message {
  background: var(--light-red);
  color: var(--accent-red);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 16px;
  display: none;
}

.error-message.show {
  display: block;
}

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

.back-link a {
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  transition: color 0.3s;
}

.back-link a:hover {
  color: white;
}